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1 – 10 of 21
Article
Publication date: 1 February 1983

G. Beni, L.A. Hornak and S. Hackwood

Advantages claimed by the authors for this type of magnetic sensor for embedding in robot fingers are that it is independent of the rate of approach, it is reliable in hostile…

Abstract

Advantages claimed by the authors for this type of magnetic sensor for embedding in robot fingers are that it is independent of the rate of approach, it is reliable in hostile environments, and it yields output easily processed by digital electronics.

Details

Sensor Review, vol. 3 no. 2
Type: Research Article
ISSN: 0260-2288

Article
Publication date: 19 June 2017

Yang Xin, Yi Liu, Zhi Liu, Xuemei Zhu, Lingshuang Kong, Dongmei Wei, Wei Jiang and Jun Chang

Biometric systems are widely used for face recognition. They have rapidly developed in recent years. Compared with other approaches, such as fingerprint recognition, handwriting…

Abstract

Purpose

Biometric systems are widely used for face recognition. They have rapidly developed in recent years. Compared with other approaches, such as fingerprint recognition, handwriting verification and retinal and iris scanning, face recognition is more straightforward, user friendly and extensively used. The aforementioned approaches, including face recognition, are vulnerable to malicious attacks by impostors; in such cases, face liveness detection comes in handy to ensure both accuracy and robustness. Liveness is an important feature that reflects physiological signs and differentiates artificial from real biometric traits. This paper aims to provide a simple path for the future development of more robust and accurate liveness detection approaches.

Design/methodology/approach

This paper discusses about introduction to the face biometric system, liveness detection in face recognition system and comparisons between the different discussed works of existing measures.

Originality/value

This paper presents an overview, comparison and discussion of proposed face liveness detection methods to provide a reference for the future development of more robust and accurate liveness detection approaches.

Details

Sensor Review, vol. 37 no. 3
Type: Research Article
ISSN: 0260-2288

Keywords

Book part
Publication date: 21 November 2016

Woogul Lee

Many psychologists posit that intrinsic motivation generated by personal interest and spontaneous satisfactions is qualitatively different from extrinsic motivation generated by…

Abstract

Many psychologists posit that intrinsic motivation generated by personal interest and spontaneous satisfactions is qualitatively different from extrinsic motivation generated by external rewards. However, the contemporary neural understanding of human motivation has been developed almost exclusively based on the neural mechanisms of extrinsic motivation. In neuroscience studies on extrinsic motivation, striatum activity has been consistently observed as the core neural system related to human motivation. Recently, a few studies have started examining the neural system behind intrinsic motivation. Though these studies have found that striatum activity is crucial for the generation of intrinsic motivation, the unique neural basis of intrinsic motivation has not yet been fully identified. I suggest that insular cortex activity, known to be related to intrinsic enjoyment and satisfaction, is a unique neural component of intrinsic motivation. In this chapter, I addressed the theoretical background to and empirical evidence for this postulation.

Details

Recent Developments in Neuroscience Research on Human Motivation
Type: Book
ISBN: 978-1-78635-474-7

Keywords

Book part
Publication date: 21 November 2016

Elizabeth Tricomi and Samantha DePasque

Performance feedback about whether responses are correct or incorrect provides valuable information to help guide learning. Although feedback itself has no extrinsic value, it can…

Abstract

Performance feedback about whether responses are correct or incorrect provides valuable information to help guide learning. Although feedback itself has no extrinsic value, it can produce subjective feelings similar to “rewards” and “punishments.” Therefore, feedback can play both an informative and a motivational role. Over the past decade, researchers have identified a neural circuit that processes reward value and promotes reinforcement learning, involving target regions of dopaminergic input (e.g., striatum and ventromedial prefrontal cortex). Importantly, this circuit is engaged by performance feedback even in the absence of reward. Recent research suggests that feedback-related brain activity can be modulated by motivational context, such as whether feedback reflects goal achievement, whether learners are oriented toward the informative versus evaluative aspect of feedback, and whether individual learners are motivated to perform well relative to their peers. This body of research suggests that the brain responds flexibly to feedback, based on the learner’s goals.

Details

Recent Developments in Neuroscience Research on Human Motivation
Type: Book
ISBN: 978-1-78635-474-7

Keywords

Book part
Publication date: 21 November 2016

Sung-il Kim, Johnmarshall Reeve and Mimi Bong

The rapid progress of neuroscience and the interdisciplinary collaboration between neuroscience and psychology have begun to provide valuable insights for understanding the…

Abstract

The rapid progress of neuroscience and the interdisciplinary collaboration between neuroscience and psychology have begun to provide valuable insights for understanding the dynamic and implicit nature of human motivation by identifying the in vivo neural mechanism of motivation. One of the fundamental questions in the field of the neuroscience of motivation is what neural mechanisms underlie the direction, intensity, and guidance of our motivation and subsequent actions. This prologue explains how neuroscience can contribute to the understanding of human motivation. To accomplish this purpose, we present what neuroscientific data look like, identify 13 key motivation-relevant brain structures, and introduce 3 key motivation-centric brain circuits – namely, the reward circuit, the value-based decision-making pathway, and the self-regulation/self-control network.

Details

Recent Developments in Neuroscience Research on Human Motivation
Type: Book
ISBN: 978-1-78635-474-7

Keywords

Open Access
Article
Publication date: 15 January 2018

Daniel M. Jenkins

This study compares the differences in instructional and assessment strategy use between instructors who teach undergraduate- and graduate-level face-to-face, academic…

Abstract

This study compares the differences in instructional and assessment strategy use between instructors who teach undergraduate- and graduate-level face-to-face, academic credit-bearing leadership studies courses. Findings suggest that, overall, discussion-based pedagogies, case studies, and self-assessments are the most frequently used instructional strategies, while instructors attach the most weight in their courses to term papers, group projects, and class participation/attendance. Further, undergraduate-level instructors use service learning far more in their instruction, while graduate instructors attach much greater value to term papers.

Details

Journal of Leadership Education, vol. 17 no. 1
Type: Research Article
ISSN: 1552-9045

Book part
Publication date: 1 December 2008

Luke J. Chang and Alan G. Sanfey

Purpose – Initial explorations in the burgeoning field of neuroeconomics have highlighted evidence supporting a potential dissociation between a fast automatic system and a slow…

Abstract

Purpose – Initial explorations in the burgeoning field of neuroeconomics have highlighted evidence supporting a potential dissociation between a fast automatic system and a slow deliberative controlled system. Growing research in the role of emotion in decision-making has attempted to draw parallels to the automatic system. This chapter will discuss a theoretical framework for understanding the role of emotion in decision-making and evidence supporting the underlying neural substrates.

Design/Methodology/Approach – This chapter applies a conceptual framework to understanding the role of emotion in decision-making, and emphasizes a distinction between expected and immediate emotions. Expected emotions refer to anticipated emotional states associated with a given decision that are never actually experienced. Immediate emotions, however, are experienced at the time of decision, and either can occur in response to a particular decision or merely as a result of a transitory fluctuation. This chapter will review research from the neuroeconomics literature that supports a neural dissociation between these two classes of emotion and also discuss a few interpretive caveats.

Findings – Several lines of research including regret, uncertainty, social decision-making, and moral decision-making have yielded evidence consistent with our formulization – expected and immediate emotions may invoke dissociable neural systems.

Originality/value – This chapter provides a more specific conceptualization of the mediating role of emotions in the decision-making process, which has important implications for understanding the interacting neural systems underlying the interface between emotion and cognition – a topic of immediate value to anyone investigating topics within the context of social-cognitive-affective-neuroscience.

Details

Neuroeconomics
Type: Book
ISBN: 978-1-84855-304-0

Article
Publication date: 15 August 2013

Heather A. Jacobson and Kristen S. Shuyler

This study aims to explore the positive and negative effects of working in an academic library, as reported by college students.

2387

Abstract

Purpose

This study aims to explore the positive and negative effects of working in an academic library, as reported by college students.

Design/methodology/approach

Through surveys and interviews, student workers shared their perceptions of how employment in a university library affects their academics, social life, engagement with campus life, professional skill development, and emotional/psychological states.

Findings

Results indicate that the library job is seen as a generally positive part of the students' college experience, particularly in the areas of skill development and academic performance. However, neutral, mixed, and negative effects exist as well.

Research limitations/implications

Findings may not be generalizable due to the limited number of participants and their employment in a single department. Future research could include students in other departments, libraries, or universities. This study employed a single survey and interview, capturing a snapshot of student perceptions. A more longitudinal approach could examine how the attitudes and perceptions of working students change over time as a result of their employment.

Practical implications

This study presents suggestions for how librarians, faculty, staff, and administrators can promote working students' academic success and professional development.

Originality/value

This paper contributes a new perspective to the current literature on the academic and social effects of library employment. By gathering student perceptions via surveys and interviews, this research provides one of the first analyses of the experiences of library student workers as shared in their own voices.

Details

Reference Services Review, vol. 41 no. 3
Type: Research Article
ISSN: 0090-7324

Keywords

Book part
Publication date: 1 December 2008

Gregory S. Berns, C. Monica Capra, Sara Moore and Charles Noussair

Purpose – We summarize three previous neuroeconomic studies with two features that distinguish them from most others in experimental economics: (1) the use of physical pain to…

Abstract

Purpose – We summarize three previous neuroeconomic studies with two features that distinguish them from most others in experimental economics: (1) the use of physical pain to induce incentives and (2) acquisition of data on brain activation levels. By correlating behavior when payoffs are painful with brain activation, we are able to test for the neurobiological relevance of important phenomena previously observed in experimental studies that are at odds with classical economic theories of decision-making. These specific phenomena are (a) negative discounting of future payoffs; (b) nonlinear probability weighting; (c) the experience of regret and rejoice when making a decision under risk.

Methodology/approach – The expectation of pain is created through the use of mild electric shocks to the top of the foot. Pain confers disutility, so decisions are made in the domain of losses relative to the status quo. Simultaneous with these decisions, brain activation data is acquired through functional magnetic resonance imaging (fMRI).

Findings – We find evidence for negative time discounting of electric shocks. Participants who exhibited the most extreme forms of this discounting were distinguished by early and robust activation of a subset of the cortical pain matrix. We also find evidence for probability weighting in the domain of electric shocks, which is manifest at the neural level. We find evidence both behaviorally and neurally for regret and rejoice functions for painful outcomes.

Originality/value of chapter – Previous experimental economic studies in the domain of losses have typically used monetary rewards. Here, we report behavioral effects and neural correlates using pain.

Details

Neuroeconomics
Type: Book
ISBN: 978-1-84855-304-0

Article
Publication date: 1 March 2013

Maxine Sinclair, Alison Blencowe, Laura McCaig and Peter Misch

The existence of neuropsychological deficits associated with antisocial behaviour has received considerable attention. The pilot study investigates the cognitive impairments in a

Abstract

Purpose

The existence of neuropsychological deficits associated with antisocial behaviour has received considerable attention. The pilot study investigates the cognitive impairments in a sample 9‐17 years old with suspected or previously diagnosed intellectual disability and/or neurodevelopmental disorders referred to a tier 4 CAMHS service in South East London. This paper aims to present the preliminary findings from the study.

Design/methodology/approach

In total, 28 participants between the ages of nine and 16 years, who had been referred to a tier 4 South London Forensic CAMHS, were administered selected subtests to assess intellectual, executive and social functioning using the WISC IV/WAIS IV, NEPSY II and DKEFS. Descriptive and non‐parametric statistics were used to describe the sample and identify neuropsychological deficits.

Findings

Consistent with previous research participants FSIQ and VCI were lower than the general population mean and young people identified as being high risk on the SAVRY were more impaired than those assigned to the lower risk group. The results also identified neuropsychological deficits in behavioural inhibition, cognitive flexibility, problem solving and processing fear but spared cognitive inhibition, general social processing and non‐verbal reasoning.

Originality/value

These preliminary findings serve as a platform for better understanding the neuropsychological functioning of the young people referred to the clinic and in the future it is hoped that the data will be used to evaluate cognitive rehabilitation adjuncts to established interventions provided by the service.

Details

Advances in Mental Health and Intellectual Disabilities, vol. 7 no. 2
Type: Research Article
ISSN: 2044-1282

Keywords

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