When consumers touch: a conceptual model of consumer haptic perception Cuando los consumidores tocan: Un modelo conceptual de la percepci on t actil del consumidor 当消费者触摸时:消费者触觉感知的 概念模型

Purpose – Touch plays an important role in the evaluations of products. However, prior quantitative touch research does not present a holistic perspective of haptics. This study aims to provide a more comprehensive understanding of haptic information that consumers attain from touch. Design/methodology/approach – Adopting a qualitative research approach, semi-structured, depth interviews were conducted with industry experts. Findings – Based on the findings, this research proposes a conceptual model of consumer haptic perception consisting of seven key influences, namely, the effects of haptic sensation, haptic perception, the influence of individual factors, the influence of external environmental factors, the multi-dimensionality of haptics, haptic cue congruity and haptic dominance. Practical implications – This study suggests firms to understand the importance of consumers’ haptic perception as an opportunity to engage an individual’s heart and mind through information attained through touch. © Achini Tharaka Ranaweera. Published in Spanish Journal of Marketing – ESIC. Published by Emerald Publishing Limited. This article is published under the Creative Commons Attribution (CC BY 4.0) licence. Anyone may reproduce, distribute, translate and create derivative works of this article (for both commercial and non-commercial purposes), subject to full attribution to the original publication and authors. The full terms of this licence maybe seen at http://creativecommons.org/ licences/by/4.0/legalcode The first author gratefully acknowledges Professor Brett Martin and Associate Professor HS Jin from Queensland University of Technology (QUT) for their supervision and the financial and administrative support from QUT during the completion of this research. Consumer haptic perception Received 11 August 2021 Accepted 7 October 2021 Spanish Journal of Marketing ESIC EmeraldPublishingLimited 2444-9709 DOI 10.1108/SJME-08-2021-0152 The current issue and full text archive of this journal is available on Emerald Insight at: https://www.emerald.com/insight/2444-9709.htm


Introduction
Touch is a fundamental human sense which plays a significant role in marketing and consumer behaviour (Jha et al., 2020;Krishna, 2010). For consumers, touch is used by people to engage with and to understand products through haptic information (Jha et al., 2020;Lederman and Klatzky, 1993;Peck and Childers, 2003b;Ranaweera et al., 2021). However, much of the prior research has adopted a narrow perspective, treating haptics as a single independent variable that affects other marketing constructs Krishna and Morrin, 2008;Peck and Johnson, 2011;Peck and Wiggins, 2006;Ringler et al., 2019). For example, a stream of research in marketing has examined person-based individual differences in the need for touch (Citrin et al., 2003;Grohmann et al., 2007;Peck and Childers, 2003a;Ringler et al., 2019;Webb and Peck, 2015).
When we consider how consumers can use touch-based information to evaluate a product (e.g. by touching, feeling or weighing them), there appears to be a need to provide researchers with a more holistic view of how consumers use haptics. Surprisingly, no prior marketing research has gained a broader understanding of the dynamic nature of haptics. To address this knowledge gap in the literature, this current research adopts inductive reasoning to explore the nature of haptics and what constitutes haptics, thereby proposing a conceptual model of consumer's haptic perception. Thus, the following research questions were set: RQ1. What are the key types of haptic properties of products?
RQ2. How are these haptic properties related to the four material properties: texture, weight, temperature and hardness?
This is the first study in touch literature which aims to develop a conceptual framework of consumer haptic perception. Principles of embodied cognition (Wilson, 2002) and the conceptual framework of sensory marketing (Krishna, 2012) provided the theoretical support to develop this conceptual model. Identification of such a model will contribute to the emerging literature of sensory marketing by providing directions for future touch research by capturing the dynamic nature of haptics and may help marketers refine their sensory marketing strategies. To fulfil this research aim, a semi-structured, depth interviews were conducted with industry experts as an effective means of qualitative data collection. This paper first presents a conceptual background on sensory marketing. Secondly, it reviews the important role of haptics in marketing. The next section presents the method used in this research followed by the research findings. We conclude with a discussion of the theoretical and practical implications of our findings and avenues for future research.
2. Literature review 2.1 Marketing to senses Humans perceive the world around them through their senses. Sensory marketing incorporates the five human senses, namely, sight, sound, smell, taste and touch into key marketing decisions (Hultén, 2015;Krishna, 2010;Krishna et al., 2017;Krishna et al., 2016). Embracing the theoretical perspective of embodied cognition, which posits that human cognitive processes are deeply rooted in the body's interactions with the world (Krishna and Schwarz, 2014;Wilson, 2002), sensory marketing suggests marketers to engage consumer's senses which affects their perception, judgement and behaviour (Krishna et al., 2016).
Touch is the first sense to develop in the human sensory system (Gallace and Spence, 2011) and the last sense we lose with age (Krishna, 2012). Touch is a means of direct experience with a product (Krishna, 2010;Ranaweera et al., 2021). Touch sense is linked to information and feelings about a product through both physical and psychological interactions (Peck and Childers, 2003a). The product (Peck and Childers, 2003b;Pino et al., 2020;Ranaweera et al., 2021;Velasco and Spence, 2019) the individual (Flavi an et al., 2017;Kühn et al., 2020;Peck and Childers, 2003a;Peck and Childers, 2006;Ringler et al., 2019) and the environment (Jha et al., 2020;Peck and Childers, 2006) are the three drivers of a consumer's motivation to touch. Although sensory researchers have recognised the importance of touch in consumption, their attention so far has been largely on the personal factors or the individual differences in the need for touch. To date, researchers have overlooked the role product differences of touch plays in marketing. This is especially important because products differ in their haptic information which significantly impact on the functional and aesthetic performance goals of a product design, consequently influence consumers' psychological and behaviour responses (Batra et al., 2016;Velasco and Spence, 2019).

Haptics
Haptics has its origins in psychophysics and perception literature. The word haptics derives from a Greek term meaning "able to lay hold of" (Gibson, 1966, p. 97). Haptics is referred as "the functionally discrete system involved in the seeking and extraction of information by the hand" (Gibson, 1966). The haptic system has its own unique pathways for encoding objects and that ease of encoding is a strong influence on the salience of object attributes .
Haptic information attained from the sense of touch is vital for evaluating products that differ in terms of four primary material properties that correspond to texture, weight, temperature and hardness (Lederman and Klatzky, 1993b;Peck and Childers, 2003b). Prior literature suggests that these four material properties of products are the most accessible to our sense of touch Klatzky and Peck, 2012). Properties can be described at different levels of specificity, such as roughness or warmness Klatzky and Peck, 2012). These material properties serve to differentiate objects at a more specific degree of categorisation, whereas geometric information such as size and shape help people to easily recognise objects at a more basic level of categorisation Klatzky and Peck, 2012). For example, a consumer can more easily evaluate a sweater's texture and weight by touching the surface of the material and holding the garment than by visually inspecting it. Klatzky and Lederman (2003) explain that certain haptic properties are more diagnostic than others, for example, surface smoothness is often associated with infant clothing. This is important because consumers can be motivated to touch a product before purchase, when the product's material property is relevant to its utility and where they are more prone to touch if a product differs from other products in a diagnostic manner on the four material properties (Peck and Childers, 2003a).

The role of haptics in marketing
Haptics in marketing refers to the "active seeking and perception by the hands" (Krishna, 2010). Many brands with physical products seek to create a positive haptic experience for consumers or allow them to gain information to encourage purchase through the sense of touch. For instance, Apple facilitates their customer's haptic interactions with products in their retail stores (Solomon et al., 2013). Similarly, Swedish home furniture retailer IKEA enables its customers to touch and interact with their products (Hultén, 2015). Britain's Asquith and Dairies (ASDA) removed the wrapping from several toilet tissue brands to encourage shoppers to touch, feel and compare textures which boosted sales for their own in-store brand (Solomon et al., 2013).
Prior studies that have examined the influence of product-based haptic information on consumer behaviour reveal some important findings (De Canio and Fuentes-Blasco, 2021;Jha et al., 2020;Ranaweera et al., 2021). For example, Ranaweera et al. (2021) found in a series of experiments that a consumer's touch-based information can influence what the perceived personality of the product. For example, a smooth product texture and heavy weight was related to brands being perceived as exciting. There is a perceptual transfer of haptic information from a package or a container to the judgement of the product (Velasco and Spence, 2019). For example, the firmness of the cup in which the water is served influences consumer judgements of the water. Specifically, the water tasted better when drunk from a firm cup than a flimsy cup (Krishna and Morrin, 2008).
Moreover, prior literature suggests that haptic inputs from a product container held in a consumer's hand impact food perceptions and preferences. For example, the surface texture of food containers (tough/grainy versus smooth) affects the perception of the food we eat (Piqueras-Fiszman and Spence, 2012). Further, haptic information surrounding customers while they are shopping can influence their shopping behaviour (Jha et al., 2020;Ringler et al., 2019). For instance, heavy and soft haptic cues in a retail or service environment impact purchase behaviour (Jha et al., 2020).
As discussed, haptics influence consumer perception of products, packaging and physical surroundings. Therefore, it is important that we capture the dynamism of haptics as a key driver of successful marketing. Thus, the following research questions were set: What are the key types of haptic properties of products? How are these haptic properties related to the four material properties, namely, texture, weight, temperature and hardness?

Methodology
Product-based salience of haptic information is clearly an understudied phenomenon within the evolving touch literature. Given the background, this is one of the first marketing research studies to explore the dynamic nature of haptics. Thus, a qualitative approach was deemed appropriate. Indeed, qualitative research gives insights on unexplored topics (Babbie, 2017;Hennink et al., 2020) and can be used to distinguish subtle aspects of phenomena that researchers cannot otherwise capture (Creswell, 2003). This research decision was further supported by two prior sensory marketing studies (Littel and Orth, 2013;Orth and Malkewitz, 2008).

Depth interviews
This research adopted depth interviews with industry experts. Interviews allow researchers to refine the questions and ask extra questions to confirm the sufficiency of the exploration (Creswell, 2003;Saunders et al., 2018). Talking to experts can be "crystallisation points" for practical insider knowledge (Bogner et al., 2009).
To determine the research context, a consumer free recall task was conducted following (Grohmann et al., 2007;Peck, 1999). A convenience sample of students (45) were recruited from a large public university in Australia. Participants were asked to list any products which they evaluate with touch before buying, resulting in a list of 14 product categories. Among them, clothing was named first by a total of 40 of the 45 participants and this was listed first by a total of 30 participants. Categories for which touch is important included in descending order: clothing, accessories, products, consumer electronics, furniture, home wear, cosmetics and beauty products, office, household and kitchen appliances, automobiles, toys and kids' items, plants, sports equipment and music instrument. This showed the significance of touching clothing as a product category. Thus, fashion and textile as the industry sector was selected to explore the nature of haptics.
Next, adopting a judgement sampling strategy, a set of Australian fashion industry experts such as fashion designers, textile technologists who possess expert knowledge with 10 to 20 years and experience with international clients were approached. Monooperation bias in the interviews were avoided by selecting experts from various organisations, education background and importantly from various professional careers (Shadish et al., 2002) (Table 1). The sample size is based on the completeness of the information obtained from analysis of the transcripts, with interview quality and participant diversity in the included sample being considered more important than the absolute number of interviews (Kerr et al., 2010). The sample size was not determined a priori. Instead, informants were interviewed until data saturation was achieved.
The majority of interviews were conducted face-to-face inside the informant's workplace: offices, retail stores or design houses/boutiques. This allowed informants to use real products and materials to elaborate on discussion points. Verbatim transcripts from audiotaped interviews served as the primary texts for interpretation. All interview transcripts were electronically coded using NVivo 11, which assisted the researcher to store, organise, manage and reconfigure the data more efficiently than manual coding. i14 Fashion designer and a lecturer 10 years Doctor of philosophy (reading) 08/10/2018 -9.00-11.00 a.m.

Development of the interview guide
To develop the semi-structured interview guide, an in-depth literature search was conducted. This study identified key types of haptic properties corresponding to four material properties of products, namely, texture, weight, temperature and hardness. Following Nolan and Garavan (2016), the literature search strategy included subject area, keywords and search terms, information search techniques, databases and search engines and respective academic journals ( Table 2). The parameters of the literature review are indexed journals published in the past 50 years in English language from North American and Europe. Haptics has its original roots in psychophysics and psychology literature. Therefore, the literature review began with those fields. The early experimental psychology studies theorised the phenomenological aspects of touch, subsequently extend to more empirically-based examinations of touch, such as identification of objects by touch (Klatzky and Lederman, 1992;Klatzky et al., 1985;Lederman and Klatzky, 2009); haptic exploration of objects and hand movements Lederman and Klatzky, 1987;Wu et al., 2011); object properties that invite touch (Klatzky and Peck, 2012) and identification of materials by touch (Heller, 1989;Katz and Krueger, 1989). The literature review next determined research papers focussed on sensory touch published in top marketing and consumer behaviour journals. The literature of product design too was explored because of their growing interest in the implications of haptic experience for product design. The literature review resulted in an initial master list of over 200 references to haptics from 73 research papers. Repeatedly occurring similar haptic items were considered as a saturation point. If a paper contained haptic properties that were already identified, that article was taken out from the final analysis. Some items were eliminated based on a priori criteria, namely, lack of clarity, ambiguity, undesirable similarity to other items and questionable relevance.
The final haptic list of 45 haptic pairs of the most frequently used terms to represent four material properties with all redundant items eliminated. It consisted of both bipolar (e.g.: warm-cold) and unipolar adjectives (e.g.: stiff-not stiff). The individual lines represent points along the continuum defined by the respective adjectives. The identified haptic list sets the foundation of the semi-structured interview guide (Table 3).

The coding process
This research adopted two types of coding, namely, the first cycle of coding and the second cycle of coding (Saldaña, 2015). In the first cycle of coding, an open-ended initial coding approach was used aiming to remain open to all potential theoretical directions indicated by the reading of the data. This process generated 49 codes, which were carefully recoded and then categorised according to their relationships during the second cycle in which an axial coding approach was used. This process generated 17 codes. The coding process followed the format suggested by Gioia et al. (2013) (Table 4). In this process, some initial codes were merged together because of their frequency, inter-relationship and conceptual similarity. Table 3.

Semi-structured interview guide
Based on your knowledge and experience being a fashion industry professional, please classify following haptic properties under the most suitable material property: texture, hardness, weight and temperature. E.g.
Warm-cool = "Temperature" or N/A, if it does not apply in the fashion context Finally, all second cycle codes were collated into seven potential themes, consequently, clear names for each theme were given. Next, vivid, compelling examples which capture the essence of themes to present with the final analysis were chosen. Following Saunders et al. (2018), the inductive thematic saturation approach was used and the saturation was confined to the level of analysis, thus the principal focus in the research process lies in the analysis. Accordingly, the study reached theoretical saturation at the point when mounting instances of the same codes but no new codes occurred in the data.

Findings
This research identified seven data-driven influences, namely, the effects of haptic sensation, haptic perception, the influence of individual factors on haptic perception, the influence of external environmental factors on haptic perception, the multi-dimensionality of haptics, haptic cue congruity and haptic dominance. They are all conceptually related and can be depicted as a visual model as in Figure 1. Principles of embodied cognition (Wilson, 2002) and the conceptual framework of sensory marketing (Krishna, 2012) provided the theoretical support to develop this conceptual model.

The effects of haptic sensation
This research defines haptic sensation as "the sensation that results through touching and obtaining haptic information" (Krishna, 2012). As expressed by the informants, how things "feel" has extensive psychological implications beyond simply being good or bad. "Seduce", "impress", "influence", "love", "nice", "like" and "connection" were some of the adjectives informants used to describe the haptic sensations their customers felt. Data supported the assumption that the sense of touch is linked to information and feelings about a product, not only through mere physical interaction, but through powerful psychological interaction (Krishna, 2012;Peck and Childers, 2003b;Ranaweera et al., 2021). For example, Informant 5 observed: Ultimately, they could be seduced if you like, by touching the actual fabric themselves. It could be the weight and feel of it. They would be quite impressed with the weight of the dress, but again I think that would influence their opinion of it(I 5).
Informant 12 drew on her experience as a luxury clothing retailer to stress how the physical connection a consumer builds with a product could lead to a strong emotional connection with it, which ultimately would go a long way towards persuading consumers to buy the product: I worked in luxury retailing before and one of the things I discovered during that period was that if you can get someone into a changing room with a garment, they will be ten times more likely to purchase that. This is because once they actually make a physical connection with it by putting it on their body and seeing how it works and feels when it's on them, they actually make an emotional connection with it (I 12).
Moreover, informants suggested that the correct interpretation of the exact haptic sensation their customers felt played a vital role in successful retailing. For example, Informant 1 explained how this sensation could reinforce a successful design development process: Haptics? Oh, that is enormously important. It is all about getting the most from the feel and the handle of the material by applying the right design to it. Every fabric has a unique feel, and so it must be incorporated into a design that will bring out the material's best qualities. The form of the final garment must be drawn with much thought so that it will appeal to the customer Nevertheless, as expressed by some informants, certain haptic sensations are more desirable than others. For example, Informant 4 stated that smoothness is more desirable than roughness. Informant 14 suggested that the use of lightweight materials will increase across many industries.

Haptic perception
The interview data supported the assumption that sensation as perceived through touch by the hands, affects consumers' perceptions, ultimately creating a subconscious trigger that influences their impression formation and product judgement. This supports the work of Krishna (2012), who defined haptic perception as the "awareness and interpretation of haptic sensory information". Interview data suggested that information received by touching significantly influences the consumer's product perception, in particular aesthetic appeal, perceived quality, personality perception, perceived comfort, price and confidence, while the perception of touch could even evoke negative feelings (e.g. disgust). The sensations and movements associated within haptics generally appeared to have a strong bearing on a product's aesthetic appeal to consumers, which is centered on perceptions of beauty and how a product appeals to the senses: I think our fabrics are very soft and tactile. I am not in favour of rigid materials, because stiff fabrics don't look beautiful against the skinnot to my eyes, anyway. I think it has to do with the way it drapes. Again, I probably don't think I will use them within my brand (I 8).
However, the kind of aesthetics expected by customers from haptics can change over time and across different product types. Reflecting on their design context, Informant 6 explained that although consumers now embrace rough, thick and stiff as a current fashion trend, they would have rejected the same a few years ago. Moreover, haptics influence a consumer's perception of a product's quality. The study supported the four critical dimensions of quality, namely, perceived quality, performance, reliability and durability (Garvin, 1987). "I suppose when something is flimsy, you generally think it is high quality" (I 7). Informant 12 stated that lightweight products are considered less durable compared to heavier weight products.
Another important phenomenon that emerged from the study was the metaphorical association of haptics with the perception of a person's personality: So, rugged and sleek to me is the classic, handsome Australian man who is considered the archetypal rugged handsome man [. . .]. Someone like Hugh Jackman who often played rugged characters on screen. Masculine, yes. But then you have someone like George Clooney, who is always sleek. He always plays sleek characters (I 12).
Comfort was recognised as another characteristic. For example, Informants 7, 10 and 14 explained how their clients rely on their sense of touch to evaluate the sense of comfort that a clothing product can provide. For example, Informant 7 stressed that if a garment feels cold to the touch it will not feel comfortable.
Moreover, the study drew attention to the essential role haptic perception plays in influencing a consumer's assessment of value. As demonstrated by some informants, regardless of their knowledge and experience, their perceptions of value were based on the haptic properties of the product. They gained this information by simply touching the products, suggesting that information attained through touch can serve as a crucial driver of price perception. For example, lightness of weight is associated with a cheaper price perception. However, touch can also influence a consumer's negative reaction towards products, particularly if they have been previously touched by another person. This negative outcome of touch is referred to as "disgust" here (a response that is prompted by the suspicion of uncleanliness). Informant 6 explained that some consumers are overly sensitive to the presence of suspected impurities in the product when it has been previously handled or worn by another person: Because as soon as you put your hand on the fabric it starts to have an effect on the fabric, especially in the case of delicate fabrics like silk satin crepe. The very soft satin has an affinity for impurities so it tends to absorb any kind of body oil or any type of makeup. That would instantly stain the garment and by viewing the material from an angle you could see the marks left by the fingertips. This would just drive me crazy because the next time someone tries it on that person would say, 'Oh! It's been touched. It's dirty (I 6).
This finding is consistent with that of previous consumer contamination studies that investigated the role of incidental touch on consumer behaviour, which was that consumers tend to evaluate products previously handled by other shoppers less favourably (Argo et al., 2006).

Individual factors
The influence of individual factors on haptic perception is referred to here as "individual level factors that influence a consumer's haptic experience". The majority of informants explained that people are highly sensitive to tactile stimuli and so they are quite responsive to the sense of touch and feel. Informant 8 stressed, "Tactility is absolutely important, because, again my client is very tactile". This research supported the two types of individual orientation towards touch posited in the touch literature, namely, the goal driven utilitarianoriented touch and the sensory pleasure driven hedonic-oriented touch (De Canio and Fuentes-Blasco, 2021;Peck and Childers, 2003a;Ranaweera et al., 2021).
Data supported the utilitarian orientation of touch. As indicated by informants, our sense of touch provides essential information related to the goal driven evaluative outcomes of a purchase decision that is usually not associated with sensory pleasure. Informant 7 described that touch is the factor that immediately sends a customer back to the shop if he is not satisfied by the haptic information gained through touching. "This happens because you move it. You look at the whole garment, you pick it up, and see how it drapes. So, touch is a factor and it might immediately send you back if you don't like the feel of it" (I 7). Informant 2 stated that if consumers are satisfied with the hand feel they will be willing to put up with other shortcomings -"If something feels nice to the touch, I think people will put up with other things" (I 2).
Interview data also supported the hedonic orientation of touch. Some informants suggested that consumers enjoy the sensation of touching, holding or sometimes squeezing products or materials. For example, Informant 5 admitted that she cannot resist the temptation to touch products whenever she goes shopping. "During much of the time when I am designing and whenever I am out I can't help myself from just touching all the clothes I see" (I 5). Moreover, despite the convenience and ease of online shopping, which is mostly a goal-driven action, consumers still prefer to visit brick and mortar stores to enjoy the sensation of touching and feeling the products. Informant 12 explained, "I have to say that as a consumer I often shop online, but it is rather more fun going into stores and looking and feeling and touching fabrics and clothes" (I 12).
Another phenomenon that became evident during this qualitative exploration was the consumers' preference for uniqueness when acquiring and possessing haptic information.
The preference for haptics varied across individuals. For example, Informant 4 explained that even though the majority of their customers liked softness against their skin, there could still be customers whose desire to stand out from the crowd drove them to go in for some strongly contrasting haptic property such as a coarse texture.

External environmental factors
Another salient thematic topic that emerged from the discussion is the influence of external environmental factors on haptic perception, which this paper refers to as "external environmental factors that influence consumers' haptic experience". Data suggested two major external environmental factors, namely, ambient temperature and technological advancements.
Prior marketing literature posits those physical surroundings and the atmosphere can impact consumer judgement and decision-making (Biswas et al., 2019;Jha et al., 2020;Turley and Milliman, 2000). Consumer psychology studies also show that consumer preferences such as conformity are influenced by ambient temperature (Huang et al., 2014). This study also found that a consumer's haptic perception is influenced by ambient temperature. Informant 7 explained, "I actually think that a lot of this is also impacted by the ambient temperature prevailing in the place where you are shopping. If it is a really cold day, you are naturally going to purchase something warm and cosy". Informants 3, 6, 8, 11, 12 and 14 similarly emphasised that in Queensland, Australia, which has a subtropical climate, the temperature drives consumers to seek lightweight materials that feel cool to the touch.
Technological advancements have changed the world in countless ways. This study revealed some positive influences of technology on a consumer product's touch-based properties, which have a bearing on touch-based information processing: I come across a lot of innovative fabrics that possess different tactile properties, which appeal to the senses when you touch them, unlike a normal fabric. You can find innovative fabrics of course, from all sources. You can even find thermochromic fabrics that show a reversible change of colour on warming, so that by touching them, you can leave your fingerprints on the surface. Those things are available in the market [. . .] and there are so many varieties (I 10).
Nevertheless, advanced technology can also lead to negative consequences on consumers' haptic perceptions. For example, Informant 5 explained how technology could be exploited to mimic certain special haptic qualities cheaply, with the result that inexpert consumers would have trouble distinguishing between an original product and a spurious product.

Multi-dimensionality of haptics
The next theme is the multi-dimensionality of haptics, which this research defines as "the integration by the consumer of several haptic inputs rather than focus on a single haptic modality". Psychophysics literature suggests that information obtained through the sense of touch is important for the evaluation of products that vary in terms of four material properties, which are texture, weight, temperature and hardness . This study sheds more light on this by showing that it is quite feasible for people to acquire, store and retrieve different types and amounts of haptic information simultaneously. For example, Informant 1 preferred a soft texture and expected it to be warm at the same time.
The rationale behind this novel haptic notion is explained by drawing insights from original haptic literature rooted in perception and psychophysics, where touch is referred to as an active multi-dimensional sense derived from the integration of different sensory inputs rather than a single sensory modality (Klatzky and Lederman, 2003). This finding also shed some light on Heller and Schiff (2013)'s a discussion on the theoretical issues pertaining to haptic processing, which raises the question "whether we process tactile input in serial form or in parallel"? They assume that this issue indicates the possibility of attending to more than one haptic property at a time. Our findings clearly show that a person's haptic perception of a stimulus or product could be enhanced by the presence of multiple haptic properties simultaneously. This is exemplified by Informant 2 who stressed that we cannot just isolate one attribute when people are feeling more than one at the same time. Informant 5 explained that "Because you are feeling more than just one property at the same time, you are taking in a fair bit of information". Informant 2 claimed that there are products that are light and warm at the same time. Informant 3 observed a closer relationship between hardness and firmness than softness and flimsiness. Informant 11 said that if a product is soft, you perceive it as being lighter in weight. Informant 10 stressed that some consumers doubt the stability of soft, delicate and flimsy products. Informant 13 described that "When a material is bulky [heavy], it is subconsciously considered as less breathable, so temperature is also represented indirectly".

Haptic cue congruity
Multi-dimensionality of haptics provides further insight on how haptic cues correspond with one another. This study recognises this novel influence as haptic cue congruity. From a sensory marketing perspective, Krishna et al. (2010) define cue congruence to be the degree of fit among different characteristics of a stimulus. In a similar vein, this study defines "the degree of fit among haptic cues" as haptic cue congruence. For example, hard and firm properties have a strong match between their haptic characteristics, thus we recognise them as being haptically congruent. Similarly, materials with matching properties like soft and flimsy, warm and heavy, cool and lightweight and soft and lightweight have the same natural fit within them.
On the other hand, we refer to haptic cue incongruence as the degree of mismatch between haptic cues. For example, smooth and heavy properties have a natural mismatch. Similarly, soft and heavy, lightweight and warm and heavy and cold materials have the same mismatch between their physical characteristics. A recent paper which has examined the influence of haptic attributes on consumer product impressions offers some important empirical evidence to support the notion of haptic cue congruity (Ranaweera et al., 2021). More especially, this research shows that the unexpected incongruity between smooth and heavy haptic cues evoke favourable response towards exciting brands (Table 5 for extracted quotes that support the multi-dimensionality of haptics and haptic cue congruity).

Haptic dominance
The next theme is haptic dominance. There is a large body of evidence on cross-modal interactions among the senses, with respect to sensory dominance (Colavita, 1974;Schifferstein et al., 2010). However, there is no early research evidence to suggest which of the four material properties is the most readily perceptible to our sense of touch . In other words, which of these properties is the most dominant one so that it is noticed first by the consumer before he becomes aware of the other properties? This study posits that our brain may not give equal weightage to the information coming from different haptic modalities. Rather, one modality could dominate others, thereby drawing the greater part of the consumers' attention to that particular sensory property with less attention being paid to the others. This research defines haptic dominance as what occurs when one haptic modality is given greater weightage by a consumer compared to the attention he pays to other haptic modalities. For example, Informant 2 explained, "I definitely think that the feel or texture of a garment is probably more important than some of the other qualities, because that is what makes something feel nice" (I 2).
Interview data suggested that weight is probably the second most important factor. Informant 3 emphasised that weight plays a pivotal role in the product design and development process. Informant 4 stated that when she touches something, she would immediately go for texture and then the weight of the product. "These are the two main qualities that I would straightaway go for" she said. Some informants suggested that thermal sensation could also play a role when people touch products, they plan on buying. However, there could also be some negative consequences of temperature as far as haptic perception is considered. As Informant 10 claimed, when consumers come into the store and happen to feel a hot [warm] vibe upon touching a product, they seem to lose interest in buying that item. "When they come into the store, touch the product and find it gives that hot vibe, they are not interested in buying it" (I 10).
Hardness was the least prominent aspect in the data. Informant 4 emphasised that hardness is only one particular aspect and suggested that weight somehow has a greater haptic impact than hardness.

Discussion and conclusion
This research provides a more comprehensive understanding of haptics as a key driver of consumers' motivation to buy a product after they have touched and handled it. This research proposes a conceptual model of consumer haptic perception that integrates the following seven haptic influences, namely, the effects of haptic sensation, haptic perception, the influence of individual factors, the influence of external environmental factors, the multidimensionality of haptics, haptic cue congruity and haptic dominance. This study identifies the sensations that result from touching and feeling haptic information as "haptic sensation". More specifically, the findings reveal that the sensation felt by a consumer creates a powerful emotional connection between him and the product. The findings suggest that the haptic sensation felt by touching with the hands ultimately affects the consumers' perception, and subsequently creates a subconscious impression that informs the consumers' product judgement. In particular, the consumers' assessment of the product will be based on such factors as aesthetic appeal, perceived quality, personality perception, perceived comfort, perceived price, perceived confidence and possibly a negative perception of touch (disgust). This is consistent with the view that sensation and perception are stages of processing by the senses, which will affect consumers' perception, judgement and behaviour (Krishna et al., 2016).
This study also observes consumers' preference for uniqueness when acquiring and possessing touch-based information. More specifically, this research shows the influence of individual factors on a consumer's haptic perception. In particular, the findings support the two types of individual orientations of touch, namely, the goal driven utilitarian-oriented touch and the sensory pleasure driven hedonic-oriented touch (De Canio and Fuentes-Blasco, 2021;Peck and Childers, 2003a;Ranaweera et al., 2021). This research next draws attention to two environmental factors that can influence a consumer's haptic perception, namely, ambient temperature and technological advancements.
While the current understanding of the embodiment effects with respect to touch are specific to haptic information corresponding to a single material property, this research stresses the importance of embracing the integrative nature of haptics that includes all four material properties, namely, texture, weight, temperature and hardness. This theme was referred as the multi-dimensionality of haptics. For example, a product's smooth texture and light weight could simultaneously drive consumers' haptic perception. Grounded on this, the research further conceptualises that haptic cues may complement each other in multi-faceted ways, thereby giving rise to two other novel haptic concepts, namely, haptic-cue congruence and haptic cue incongruence. For instance, smoothness and lightness have a natural fit. In contrast, smoothness and heaviness or roughness and lightness have a natural mismatch. Finally, the notion of haptic dominance was discussed.
Despite the large body of evidence on sensory dominance, specifically the higher receptivity to vision over other senses, no prior empirical work has discussed if any of the four material properties of texture, weight, hardness and temperature could dominate another property or exert any influence over it. This research shows that the dominance of certain haptic properties, in particular the texture of a product, exerts greater influence in drawing a consumer's attention compared to other haptic modalities.

Theoretical implications
This exploratory investigation adds to the evolving body of literature on sensory touch by illustrating the dynamic nature of haptics. This is the first study in marketing to propose a conceptual model comprising several new haptic influences, especially the multidimensionality of haptics, haptic cue congruity and haptic dominance. This will provide new insights to future sensory marketing researchers so they may examine the impact of touch on consumer judgement and decision-making. Broadly, this understanding provides insights into theory building in other types of sensory research as well, such as in exploring multi-dimensionality among other sensory modalities. Further, this research took the first step in designing a realistic and workable protocol for future sensory marketing studies by determining semantic scales to measure consumers' haptic perception. Specifically, a consumer could place a mark on one of the lines to indicate the point along the continuum that characterises his or her evaluation of the stimulus. For example, if someone perceived a product's weight as very light, they can select the line closest to that adjective.

Practical implications
This research offers some important implications to marketing practitioners. The study provides a rich understanding of why marketers must exploit consumers' receptivity to touch sensation and perception by attracting consumers through various forms of haptic interactions. Particularly, the research suggests firms to consider the cue congruity effect among products. For example, practitioners could create their products by combining incongruent haptic cues, for instance, applying an extra smooth finish on a heavy metallic base. In contrast, they could develop products by permitting haptic cues to be congruent, such as using smooth and also lightweight materials. This research further shows the notion of haptic dominance, thereby suggests practitioners that although all four haptic properties are open to obtain information during consumers' product-interactions, some haptic properties can have a larger effect on the product experience than others. For example, hardness may play a more pivotal role than texture in the context of interior design or consumer electronics.
Further, this research provides some insights on market segmentation by taking into account individual differences in processing haptic information. This research also shows the impact of environmental factors on consumers' haptic perception and consequential decision-making. Moreover, this research illustrates that certain products are more suitable for touch evaluation. Therefore, practitioners could determine more easily which products could benefit through incorporating special haptic properties to appeal to consumers (Table 6 for main conclusions and the main theoretical and managerial implications of this research).

Limitations and future research directions
Given that this study is among the first to explore the nature of haptics, it is subject to a few limitations, which are likely to offer some scope for further research. The main limitation of this study is the small sample size of informants. Further, the selected fashion industry experts were a reliable source of information, their interpretation on haptic perception might not be as same as regular consumers. To address these, limitations, future research is recommended to validate the preliminary findings of this study by adopting a quantitative Table 6. Conclusions, theoretical and managerial implications

Conclusion
Theoretical and managerial implications A conceptual model of consumer haptic perception consisting of seven key influences: the effects of haptic sensation, haptic perception, the influence of individual factors, the influence of external environmental factors, the multi-dimensionality of haptics, haptic cue congruity and haptic dominance Haptic sensation felt by touching with the hands ultimately affects the consumers' perception, and subsequently creates a subconscious impression that informs the consumers' product judgement Individual and environmental factors impact consumers' haptic perception and consequential decision-making Consumers acquire, store and retrieve different types and amounts of haptic information simultaneously Haptic cues complement each other in multi-faceted ways (haptic cue congruity) The dominance of certain haptic properties, in particular the texture of a product, exerts greater influence in drawing a consumer's attention compared to other haptic modalities research approach that uses a larger sample of consumers. Future research could also examine haptic effects among different market levels. For example, high-end luxury level retailers vs value retailers. Further, initial findings of this research could be built upon by follow up studies that would include the development of a haptic scale to measure the haptic perception of products. Furthermore, replication studies are necessary to examine the notion of haptic dominance. For example, texture could be the dominant haptic cue because of the fashion and texture context in which it emerged. Further, haptic dominance could be further expanded in the future with some quantitive exploration, such as conjoint analysis.
As it was beyond the scope of the current research, future research is recommended to validate some of the preliminary findings through a different data collection process. For example, a follow-up survey could measure the effect of haptic interactions on other marketing constructs such as consumer's impulsive purchasing behaviour. This research further suggests future research to capture haptic effects across different product categories such as high involvement (e.g. consumer electronic products) or low involvement products (e.g. grocery products).