Search results

Proposes cusum‐cuscore procedures that consider equal weight past sample mean values and past sample score values. The objective is to compare the performance of the cusum‐cuscore and the ewma‐cuscore and in particular to investigate the number of past sample mean values needed to make a significant impact on the performance of the schemes. It will be shown by average run length calculations that the two schemes complement each other very well and that they perform significantly better than standard Shewhart, cuscore and cusum procedures.

Demonstrates the application of the recently proposed shifting mean heuristic to statistical quality control situations. Proposes the heuristic search procedure primarily as a tool for retrospective (or post mortem) data analysis, retrospectively examining a known data set to establish shifts of process mean, as illustrated in the traditional Manhattan diagram (i.e. a plot of observations with superimposed sub‐process means). However, because the procedure can be operated automatically, it is suggested that where sampling rates are relatively slow it could also be used for online quality monitoring by providing a dynamic Manhattan diagram which changes shape when a newly developed series of observations establishes a shift from a pre‐specified reference level or target value. Briefly reviews other approaches to establishing shifts in process mean, describes the concepts underlying the heuristic search procedure, and reviews the statistical considerations involved. Compares the procedure with other approaches, and provides examples of the heuristic search procedure operating as a tool for retrospective data analysis using three time series kindly provided by the editor which were analysed “blind” by the author. The editor’s comments on the results are appended.

The purpose of this paper is to consider oxytocin as a treatment for children diagnosed with callous unemotional [CU] traits, emotion regulation and whether moral disability is a meaningful category.

The paper discusses the relationship between psychiatric diagnoses, moral opprobrium and disability in relation to emotion regulation and diagnoses of callous unemotional conduct disorder (CUCD) and psychopathy, together with current research on oxytocin in humans.

Diagnoses of callous unemotional traits and psychopathy are problematic as a result of inbuilt moral opprobrium, while treating CUCD with oxytocin to promote prosociality through mandating a moral feeling brain oversimplifies how this neuropeptide operates in humans.

Oxytocin is currently under trial as a treatment for behavioural variant fronto‐temporal dementia, where patients display symptoms similar to those diagnosed with CUCD. As genetic, environmental and ethnic factors affect oxytocin's effects in humans, caution is warranted before supporting its use to treat CUCD. Moreover, such use may represent a reductionist technofix compared with addressing socioeconomic factors promoting the manifestation of CU traits as an adaptation.