Perhaps Unidimensional Is Not Unidimensional

Miller (1956) identified his famous limit of 7 ± 2 items based in part on absolute identification—the ability to identify stimuli that differ on a single physical dimension, such as lines of different length. An important aspect of this limit is its independence from perceptual effects and its application across all stimulus types. Recent research, however, has identified several exceptions. We investigate an explanation for these results that reconciles them with Miller’s work. We find support for the hypothesis that the exceptional stimulus types have more complex psychological representations, which can therefore support better identification. Our investigation uses data sets with thousands of observations for each participant, which allows the application of a new technique for identifying psychological representations: the structural forms algorithm of Kemp and Tenenbaum (2008) . This algorithm supports inferences not possible with previous techniques, such as multidimensional scaling.     

Fairness Reactions to Personnel Selection Methods: A look at professionals in Mumbai,India

This study expands upon Steiner and Gilliland's selection fairness research. Professionals (N = 114) from Mumbai, India rated 12 employee selection methods on favorability and provided the bases for those ratings. In line with previous research, interviews and resumes were rated most favorably, while graphology and honesty tests were rated least favorably. Perceived face validity, opportunity to perform, and widespread use of selection methods were highly correlated with favorability ratings, while interpersonal warmth, scientific evidence, and respectful of privacy exhibited weak correlations with favorability ratings. Work sample tests, which have previously been rated favorably, were rated unfavorably. Exploratory analysis showed that participants viewed assessment centers favorably and online information unfavorably. Outcome favorability was highly correlated with favorability ratings.     

Low Rates of African American Participation in Genetic Counseling and Testing for BRCA1/2 Mutations: Racial Disparities or Just a Difference?

Low rates of genetic counseling among African American women have generated concerns about disparities; however, to the extent that women's decisions to accept or decline counseling are consistent with their values, then lower participation may reflect preferences and not disparities. We evaluated the extent to which women were satisfied with their decision about participating in genetic counseling for BRCA1/2 mutations and identified variables that were associated significantly with satisfaction. Prospective study of decision satisfaction with 135 African American women who had a minimum 5% prior probability of having a BRCA1/2 mutation. Decision satisfaction was evaluated one month after women were offered participation in genetic counseling using a structured questionnaire. Women were satisfied with their participation decision; more than 80% reported that their decision was consistent with their family values. However, women who declined pre-test counseling had significantly lower satisfaction scores. Our findings highlight the importance ensuring that racial differences that are due to preferences and values are not misclassified as disparities in order to identify and address the root causes of disparate treatment.     

Cognitive vulnerability to depression during middle childhood: Stability and associations with maternal affective styles and parental depression

Theories of cognitive vulnerability to depression (CVD) imply that CVD is early-emerging and trait-like; however, little longitudinal work has tested this premise in middle childhood, or examined theoretically relevant predictors of child CVD. We examined test–retest correlations of self-referent encoding task performance and self-reported attributional styles and their associations with parental characteristics in 205 seven-year-olds. At baseline, child CVD was assessed, structured clinical interviews were conducted with parents, and ratings of observed maternal affective styles were made. Children’s CVD was re-assessed approximately one and two years later. Both measures of children’s CVD were prospectively and concurrently associated with children’s depressive symptoms and showed modest stability. Multilevel modeling indicated that maternal criticism and paternal depression were related to children’s CVD. Findings indicate that even early-emerging CVD is a valid marker of children’s depression risk.     

Breaking Confidentiality to Report Adolescent Risk-Taking Behavior by School Psychologists

School psychologists often break confidentiality if confronted with risky adolescent behavior. Members of the National Association of School Psychologists (N = 78) responded to a survey containing a vignette describing an adolescent engaging in risky behaviors and rated the degree to which it is ethical to break confidentiality for behaviors of varying frequency, intensity, and duration. Respondents generally found it ethical to break confidentiality when risky adolescent behaviors became more dangerous or potentially harmful, although there was considerable variability between respondents. Significant gender effects were found between male and female respondents for alcohol use, and a significant Form Type (i.e., male or female vignette) × Frequency/Duration interaction was observed for antisocial behaviors. School psychologists could benefit from further training in ethical decision making because these ethical dilemmas are not always clear-cut.     

Gender,sexual orientation,and disordered eating

Abstract

While most patients with bulimia nervosa are heterosexual women, a significant number of men with bulimia nervosa are gay males, suggesting that gay men, more than heterosexual men, may be at risk for developing eating disorders. This study compared the food-related attitudes and behaviors of heterosexual men and women in contrast with those of lesbians and gay men, attempting to find whether one's sexual orientation may contribute to differential risk. Two thousand employees were randomly selected from a large health care corporation, of whom 805 returned a completed questionnaire including Stunkard and Messick's (1985) Dietary Restraint and Disinhibition Scales. A stratified random sample was drawn to include demographically comparable groups of 25 lesbians, 50 gay men, 75 heterosexual women, and 75 heterosexual men. Women were less satisfied with their appearance at their present weight and expressed more restraint and more negative feelings after bingeing than did men. Heterosexual women were most dissatisfied with their weight, although heterosexual men were more objectively overweight. Gay men and heterosexual women were similar in disordered eating patterns and disinhibition, contrasting with lesbians and heterosexual men.     

The interplay between executive control and motor functioning in Williams syndrome

Previous studies suggest that individuals with Williams syndrome (WS), a rare genetically based neurodevelopmental disorder, show specific weaknesses in visual attention and response inhibition within the visuospatial domain. Here we examine the extent to which impairments in attentional control extend to the visuomotor domain using a well‐validated measure of choice stepping reaction time (CSRT) in individuals with WS. We examined the interaction between executive control and visually guided stepping using a verbal fluency dual‐task or Go/NoGo paradigm during CSRT performance. Relationships between dual‐task and inhibitory stepping and behavioural inattention and hyperactivity were also examined. Our results showed clear dual‐task costs in stepping response times when performing a concurrent cognitive task in the WS group when compared to spatial and verbal ability matched typically developing controls. Although no group differences in stepping accuracy were observed between the WS and typically developing control groups, the WS group showed progressive slowing and more variable response times across the duration of the Go/NoGo task. These results suggest dysfunction in circuits involved in top‐down attentional control processes in WS. These findings provide novel evidence that core executive control deficits in WS extend to the visuomotor domain, and impact on ADHD‐related inattentive symptoms.     

Sweet Pea Summer

For a number of years, the author, now 64, has studied the mythological theme of the mother and daughter mysteries. An earlier memoir in Psychological Perspectives, entitled “Pictures of My Mother” (2010), explored a strained and often painful relationship. In that essay, the author uncovered a previously unfelt love for the “colorful, constrained, complicated, and courageous” woman her mother was. The generative process of writing “Pictures of My Mother” opened a new understanding. In this article the author receives a fresh visitation from Mnemosyne, the Greek goddess of memory. The goddess penetrates beneath images of illness and old age and travels into an earlier time. The author was five, and her mother, at the age of 44, was still vital and alive. The mother, a gifted gardener, taught her daughter how to grow sweet peas. The flowers blossom as an expression of the bond between mother and daughter.     

Virtual reality exposure therapy: 150-degree screen to desktop PC.

Virtual reality exposure therapy (VRET) developed using immersive or semi-immersive virtual environments present a usability problem for practitioners. To meet practitioner requirements for lower cost and portability VRET programs must often be ported onto desktop environments such as the personal computer (PC). However, success of VRET has been shown to be linked to presence, and the environment's ability to evoke the same reactions and emotions as a real experience. It is generally accepted that high-end virtual environments (VEs) are more immersive than desktop PCs, but level of immersion does not always predict level of presence. This paper reports on the impact on presence of porting a therapeutic VR application for schizophrenia from the initial research environment of a semi-immersive curved screen to PC. Presence in these two environments is measured both introspectively and across a number of causal factors thought to underlie the experience of presence. Results show that the VR exposure program successfully made users feel they were "present" in both platforms. While the desktop PC achieved higher scores on presence across causal factors participants reported they felt more present in the curved screen environment. While comparison of the two groups was statistically significant for the PQ but not for the IPQ, subjective reports of experiences in the environments should be considered in future research as the success of VRET relies heavily on the emotional response of patients to the therapeutic program.     

The influence of schemas,stimulus ambiguity,and interview schedule on eyewitness memory over time

The authors examined how a crime schema influenced the types of details witnesses recalled over multiple interviews that varied in delay before the initial interview and between subsequent interviews. Accuracy data showed that, in general, schema-irrelevant traces experienced greater decay than schema-consistent and schema-inconsistent traces after the initial interview and that delaying the initial interview negatively affected recall at the initial interview but led to less decay over subsequent interviews. Ambiguity of the crime stimulus was also manipulated. Witnesses used their schema to interpret ambiguous information and, as a result, made more schema-consistent intrusions and less correct responses and were more likely to report false memories that involved conscious recollection (using the remember-know paradigm).