The apes’ edge: positional learning in chimpanzees and humans

A wide variety of organisms produce actions and signals in particular temporal sequences, including the motor actions recruited during tool-mediated foraging, the arrangement of notes in the songs of birds, whales and gibbons, and the patterning of words in human speech. To accurately reproduce such events, the elements that comprise such sequences must be memorized. Both memory and artificial language learning studies have revealed at least two mechanisms for memorizing sequences, one tracking co-occurrence statistics among items in sequences (i.e., transitional probabilities) and the other one tracking the positions of items in sequences, in particular those of items in sequence-edges. The latter mechanism seems to dominate the encoding of sequences after limited exposure, and to be recruited by a wide array of grammatical phenomena. To assess whether humans differ from other species in their reliance on one mechanism over the other after limited exposure, we presented chimpanzees (Pan troglodytes) and human adults with brief exposure to six items, auditory sequences. Each sequence consisted of three distinct sound types (X, A, B), arranged according to two simple temporal rules: the A item always preceded the B item, and the sequence-edges were always occupied by the X item. In line with previous results with human adults, both species primarily encoded positional information from the sequences; that is, they kept track of the items that occurred in the sequence-edges. In contrast, the sensitivity to co-occurrence statistics was much weaker. Our results suggest that a mechanism to spontaneously encode positional information from sequences is present in both chimpanzees and humans and may represent the default in the absence of training and with brief exposure. As many grammatical regularities exhibit properties of this mechanism, it may be recruited by language and constrain the form that certain grammatical regularities take.     

Psychometric evaluation of the Drive for Muscularity Scale in a community-based sample of Scottish men participating in an organized sporting event

As the drive for muscularity is an important construct for researchers involved in understanding men's body image, having reliable and valid measures of the construct is essential. This study assessed the Drive for Muscularity Scale (DMS) in a community-based sample of 594 Scottish men participating in an organized running event. Exploratory factor analysis revealed two subscales (Muscularity-oriented body image and Muscularity behavior) as well as a higher-order factor. Both subscales and the total score had acceptable levels of internal consistency, test–retest reliability, and construct validity. These findings provide support for the DMS as a measure of the drive for muscularity in men. It is recommended that, in future, careful consideration is given to the distinction between muscularity attitudes and behavior.     

Perceptual grouping operates independently of attentional selection: Evidence from hemispatial neglect

To what extent can human observers process visual information that is not currently the focus of attention? We evaluated the extent to which unattended visual information (i.e., that which appears on the neglected side of space in individuals with hemispatial neglect) is perceptually organized and influences the perceptual processing of information on the attended side. To examine this, patients (and matched controls) judged whether successive, complex checkerboard stimuli (targets), presented entirely to their intact side of space, were the same or different. Concurrent with this demanding task, irrelevant distractor elements appeared on the unattended side and either changed or retained their perceptual grouping on successive displays, independently of changes in the ipsilesional task-relevant target. Changes in the grouping of the unattended task-irrelevant distractor elements produced congruency effects on the attended target-change judgment to the same extent in the neglect patients as in the control participants, and this was true even in those patients with severe attentional deficits. These results suggest that some perceptual processes, such as grouping, can operate in the absence of attention.     

Development and psychometric evaluation of a quantitative measure of “fat talk”

Based on her anthropological research, Nichter (2000) concluded that it is normative for many American girls to engage in body self-disparagement in the form of “fat talk.” The purpose of the present two studies was to develop a quantitative measure of fat talk. A series of 17 scenarios were created in which “Naomi” is talking with a female friend(s) and there is an expression of fat talk. College women respondents rated the frequency with which they would behave in a similar way as the women in each scenario. A nine-item one-factor scale was determined through principal components analysis and its scores yielded evidence of internal consistency reliability, test–retest reliability over a five-week time period, construct validity, discriminant validity, and incremental validity in that it predicted unique variance in body shame and eating disorder symptoms above and beyond other measures of self-objectification.     

Predicting psychological health: assessing the incremental validity of emotional intelligence beyond personality,Type A behaviour,and daily hassles

Although some research has linked emotional intelligence (EI) and psychological health, little research has examined EI's ability to predict health outcomes after controlling for related constructs, or EI's ability to moderate the stressor–strain relationship. The present study explored the relationships among EI (as assessed by a trait‐based measure, the EQ‐i), Big Five personality factors, Type A Behaviour Pattern (TABP), daily hassles, and psychological health/strain factors (in terms of perceived well‐being, strain, and three components of burnout). The EQ‐i was highly correlated with most aspects of personality and TABP. After controlling for the impact of hassles, personality, and TABP, the five EQ‐i subscales accounted for incremental variance in two of the five psychological health outcomes. However, the EQ‐i scales failed to moderate the hassles–strain relationship. Copyright © 2005 John Wiley & Sons, Ltd.     

Stereotyping the Stereotypic: When Individuals Match Social Stereotypes

This research examines how attention and accuracy motivation moderate stereotyping in person perception. Hypotheses were derived from the stereotype validity model, which proposes that perceivers are more likely to use a stereotype as the basis of their impressions when they believe that the generalized beliefs contained within it are valid for the particular target whom they are judging. Consistent with the model's predictions, high attention and high accuracy motivation produced stronger label effects when a target's individuating information matched a stereotype's content. Also consistent with the model's predictions, the opposite pattern was found when a target's individuating information did not match a stereotype's content. Under conditions of a poor match, high accuracy motivation produced weaker label effects. The authors discuss these findings with respect to accuracy and bias in the impression-formation process.     

Preventing preschool externalizing behavior problems through video‐feedback intervention in infancy

In the present study (1) intervention effects on children's preschool behavior problems were evaluated in a high risk sample with an overrepresentation of insecure adult attachment representations in 77 first‐time mothers, and (2) predictors and correlates of child problem behavior were examined. Early short‐term video‐feedback intervention to promote positive parenting (VIPP) focusing on maternal sensitivity and implemented in the baby's first year of life significantly protected children from developing clinical Total Problems at preschool age. Also, compared with the control group, fewer VIPP children scored in the clinical range for Externalizing Problems. No intervention effects on Internalizing clinical problem behavior were found. The VIPP effects on Externalizing and Total clinical Problems were not mediated by VIPP effects on sensitivity and infant attachment or moderated by mother or child variables. Maternal satisfaction with perceived support appeared to be associated with less children's Internalizing, Externalizing, and Total Problems. More research is needed to find the mechanisms triggered by VIPP, but the outcomes could be considered as promising first steps in the prevention of disturbing, externalizing behavior problems in young children.     

Threats to the Operational Use of Situational Judgment Tests in the College Admission Process

This study examined the coachability of two situational judgment tests, the College Student Questionnaire (CSQ) and the Situational Judgment Inventory (SJI), developed for consideration as selection instruments in the college admission process. Strategies for raising scores on each test were generated, and undergraduates were trained in the use of the strategies using a video‐based training program. Results indicated that the CSQ was susceptible to coaching. In addition, the scoring format of the CSQ was found to be easily exploited, such that trainees could increase their scores by greater than 1 SD simply by avoiding extreme responses on that test. The results as a whole sounded a note of caution for the potential use of the CSQ in the college admission process.     

Personality and self-reported use of mobile phones for games.

Mobile phones are popular devices that may generate problems for a section of the community. A previous study using the Eysenck Personality Questionnaire found that extraverts with low self-esteem reported more problems with their mobile phone use. The present study used the NEO FI and Coopersmith Self-Esteem Inventory to predict the self reported mobile phone use of 112 participants. Multiple regression found that people low on agreeableness were more likely to use their mobile phones to play games. The findings imply an interplay between personality traits and excessive or problematic use on mobile phones that is relevant to proposed innovations such as gambling on mobile phones.