At the interface of social cognition and psychometrics: Manipulating the sex of the reference class modulates sex differences in personality traits

Psychometric surveys suggest that sex differences in personality are minimal. Herein, we argue that (a) the mind is likely biased toward assessing oneself relative to same-sex others, and (b) this bias may affect the measurement of sex differences in personality. In support of this, an experiment demonstrates modulation of sex differences on the HEXACO facets by manipulating the sex of the “reference class”—the group of people subjects compare themselves to when making self-assessments on survey items. Although patterns varied across traits, sex differences were relatively small in the “unspecified” and “same-sex” reference class conditions—but substantially larger in the “opposite-sex” condition. These findings point to a same-sex comparison bias that may impact the measurement of sex differences in personality.     

Locus of Control Orientation Among Obese Adults in Outpatient Treatment for Obesity

We studied locus of control (LOC) in samples of obese and nonobese subjects. We administered Rotter's (1966) I-E Scale to 106 obese adults in outpatient treatment for obesity and to 99 nonobese controls. The obese subjects were significantly more internally oriented than the control group. These findings challenge currently held assumptions on the directionality of LOC in obese groups. The results contradict the consensus among researchers that obese individuals have an external LOC orientation. The finding that internal LOC is associated with the obese condition may be a useful predictor variable influencing obesity treatment, approaches, and outcome.     

The Idea of Different Folk Psychologies

The idea of different folk psychologies is the idea that among the world's cultures there are those whose folk, or commonsense, psychologies differ in theoretically significant ways from each other and from western folk psychology. This challenges the claim that folk psychology is a 'cultural universal'. The paper looks first of all at what are called 'opulent' accounts of folk psychology, which employ a wide-ranging and more complex set of psychological concepts, and 'core' accounts, which employ a much more restricted set of such concepts. With respect to both kinds of account it is argued that field studies of the folk-psychological concepts of a number of ethnic groups indicate significant differences between the concepts used by those groups and those of western folk psychology; and hence do not support the view that folk psychology is a cultural universal.     

Prospective risk factors for subsequent exposure to potentially traumatic events

Abstract

In a sample of 1528 college students, we examined (1) whether several risk factors prospectively predicted exposure to potentially traumatic events (PTEs) over a 2-month period and (2) whether dependent events (i.e., those more likely to depend upon one's behavior or characteristics) and independent events were predicted by different risk factors. Logistic regression analyses indicated that overall subsequent PTE exposure was higher for women, those with more previous PTEs, and those who engaged in more binge drinking. Female gender and previous PTE exposure also predicted exposure to independent events. Subsequent dependent PTE exposure was predicted by more previous PTEs and binge drinking, and was somewhat higher in ethnic minority students. Implications for prevention efforts are discussed.     

Response inhibition in adults and teenagers: spatiotemporal differences in the prefrontal cortex

Inhibition is a core executive function reliant on the frontal lobes that shows protracted maturation through to adulthood. We investigated the spatiotemporal characteristics of response inhibition during a visual go/no-go task in 14 teenagers and 14 adults using magnetoencephalography (MEG) and a contrast between two no-go experimental conditions designed to eliminate a common confound in earlier studies comparing go with no-go trials. Source analyses were performed using an event-related beamformer algorithm with co-registered individual structural MRIs. Performance was controlled to be similar across subjects. Analyses of MEG data revealed bilateral prefrontal activity in the inhibitory condition for both age groups, but with different spatiotemporal patterns: around 300ms after stimulus onset in middle frontal gyri in teenagers vs. around 260ms in inferior frontal gyri in adults. Moreover, the inhibition of a prepotent motor response showed a stronger recruitment of the left hemisphere in teenagers than in adults and of the right hemisphere in adults than in teenagers. These findings provide high-resolution temporal and spatial information regarding response inhibition in adolescents compared to adults, independent of motor components and performance differences.     

Relationship between chronic stress and carotid intima-media thickness (IMT) in elderly Alzheimer's disease caregivers

The stress associated with providing care for a spouse diagnosed with Alzheimer's disease can have adverse effects on cardiovascular health. One potential explanation is that chronic caregiving stress may contribute to the development of atherosclerosis. The purpose of this study was to determine whether the duration that one has provided care is associated with the degree of atherosclerotic burden, as measured by carotid artery intima-media thickness (IMT). One hundred and ten Alzheimer caregivers [mean age 74?±?8 (SD) years, 69% female] underwent in-home assessment of carotid artery IMT via B-mode ultrasonography. Data regarding medical history, blood pressure, and multiple indicators of caregiving stress were also collected. Multiple regression indicated that duration of care was positively associated with IMT measured in the internal/bifurcation segments of the carotid artery (β?=?0.202, p?=?0.044) independent of risk factors such as age, gender, body mass index, smoking history, sleep quality, hypertension status, and caregiving stressors. Duration of care was positively associated with IMT in the common carotid artery, but the relationship was not significant. These findings provide more evidence of the link between chronic caregiving stress and cardiovascular disease and indicate that enduring the experience of caregiving over a period of years might be associated with atherosclerotic burden.     

Listening rate and comprehension as a function of preference for and exposure to time-altered speech

We conducted experiments on the effects of brief prior exposure to time-altered speech on preferred listening rate and the rate listeners would select when asked to listen to speech as fast as possible with good compression (induced listening rate). In Exp. 1, 48 participants were exposed either to normal rate speech or to speech compressed to twice-normal rate. Brief exposure to twice-normal rate speech led to a faster induced listening rate than exposure to normal rate speech. In Exp. 2, 31 participants were briefly exposed to normal rate speech, speech compressed to twice-normal rate, or speech expanded to half-normal rate. The faster the rate of the exposure speech, the faster the induced rate. Speech compressed to twice-normal rate led to a faster induced listening rate than exposure to speech expanded to half-normal rate. Normal rate speech was intermediate between twice-normal and half-normal rate and did not differ significantly from them. Induced listening rate was a linear combination of listening rate preference and recent forced exposure to time-altered speech.     

Sex differences in reasoning and emotion about altruism

This study examined sex differences in the resolution of prosocial dilemmas involving self-sacrifice. Women and men between 17 and 68 years of age were presented with hypothetical situations necessitating a choice between self and other, and asked to decide what they would choose to do. In addition, participants were asked why they made the choices they did and how they felt about them. Participants usually made the self-sacrificing choice, with no differences found between women and men in the distribution of self and other choices. Choices were justified on the basis of the respondents' own needs or those of the other person, conflict was minimized, or reasons were offered that involved stereotyped statements, interpersonal concerns, empathy, internalized affects and values, or a judgment about the capacity to help. Modes of reasoning differed somewhat between the sexes, with women using more empathic reasoning than men with other choces, and attributing their self choices more to minimal conflict and less to concern for the other's interests. There were also sex differences in participants' self-reported feelings about the choices they made. Specifically, there was evidence that women experienced more conflict than men about other choices and had more positive feelings than men did about their self choices. Several interpretations of these findings were discussed.     

Gender differences in conflict resolution styles of managers: At work and at home

Because women and men managers occupy different roles at work and at home, role theory suggests that they would use different conflict resolution behaviors in each role. This study tested this theory empirically using the Thomas-Kilmann Conflict Mode instrument to measure the five conflict resolution styles of 201 managers (99 males and 102 females) in both situational roles. Sex differences were examined along with hierarchical rank. Both genders tended to handle conflict more competitively at work than at home, and used the accommodating style more frequently at home than at work. At home, low-level women managers were more willing to collaborate and less willing to avoid conflict than at work; men managers overall were less likely to compromise at home than at work.