The role of pupil size in communication. Is there room for learning?

The eyes are extremely important for communication. The muscles around the eyes express emotional states and the size of the pupil signals whether a person is aroused and alert or bored and fatigued. Pupil size is an overlooked social signal, yet is readily picked up by observers. Observers mirror their own pupil sizes in response, which can influence social impressions. In a landmark study by Hess [1975. The role of pupil size in communication. Scientific American, 233(5), 110–119] it was shown that individuals with large pupils are perceived more positively than individuals with small pupils. In that behavioral study, participants were asked to draw pupils in line drawings of faces with empty irises and they drew large pupils in the happy face, and small ones in the angry face. The current study tested 579 participants (aged 4–80 years old) and extended this work by showing that this association between large (small) pupils and a positive (negative) impression develops over age and is absent in children. Several explanations for how individuals through interactions with close others learn that large pupils mean care, interest and attention and small pupils the opposite, are discussed. To conclude, this study shows that pupil size and emotion perception are intertwined but that their relationship develops over age.     

A Group of Sexually Abused Adolescents' Perceptions of their Future Life-Roles: An Exploratory Study

Sexual abuse of adolescents can have detrimental effects on their perceptions of their different future life-roles. We investigated such perceptions of students with a history of sexual abuse (n=163) as well as typically developing others (n=237). Participants completed the Life-role Inventory of the then called Human Sciences Research Council (Langley, 1990). Between-group comparisons were carried out. Adolescents with a history of sexual abuse reported negative perceptions of themselves fulfilling some of their roles in the future, being committed to these roles and attaching value to them, compared to typically developing others.     

Lay Perceptions of Psychotherapists in South Africa

The study investigated South African layperson perceptions of psychotherapists. Participants were 10 males and 25 females (Whites = 23, Blacks = 10, Coloreds = 2; age range 20 to 59). Semi structured interviews were used to study expectations, attitudes and stereotypical beliefs and behavior towards psychotherapists. Laypersons perceived psychotherapists negatively, and would personally not want any assistance from psychotherapists.     

Function of the blood-cerebrospinal fluid barrier and selected biochemical cerebrospinal fluid components in senile dementias of various types

Some selected CSF and serum components were determined in demental patients classified by the Hachinski test into vascular and primary-degenerative groups. As for the vascular group, the frequency distribution of the serum/CSF albumin ratios characterizing the barrier function corresponds to that of controls, in primary-degenerative cases, however, it is shifted to higher values. In vascular dementia higher CSF LAP activities pointing to actual cell damaging processes in the CNS were found. The concentrations of lactate and some trace metals in CSF and serum are not suitable for differential diagnostic purposes.     

Assessment Center Practices in South Africa

Despite the popularity of assessment centers (AC) in South Africa, no recent study exists that describes AC practices in that region. Given this research gap, we conducted a survey study that analyzes the development, execution, and evaluation of ACs in N=43 South African organizations. We report findings regarding AC design, job analysis and job requirements assessed, target groups and positions of the participants after the AC, number and kind of exercises used, additional diagnostic methods used, assessors and characteristics considered in constitution of the assessor pool, observational systems and rotation plan, characteristics, contents, and methods of assessor training, types of information provided to participants, data integration process, use of self‐ and peer‐rating, characteristics of the feedback process, and features after the AC. Finally, we compare the results with professional suggestions to identify pros and cons in current South African AC practices and offer suggestions for improvement.     

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.     

“From war to peace”: Military festival visitors’ quality-of-life

The Voortrekker Monument Military festival is one of several military festivals held in South Africa. This study sought to determine the travel motives and life domain effects on the quality-of-life of visitors. Data were gathered from 330 visitors on their travel motives, overall life domains, and quality-of-life. Structural Equation Modelling analysis indicated a positive linear relationship between the visitors’ travel motives, life domains (social-life, leisure-life, and self-life), life domains overall, and quality-of-life; all of which attained good reliabilities. The findings indicate that a visit to a military heritage festival has a positive effect on visitors’ quality-of-life. This research adds to literature in the social sciences, positive psychology, and quality-of-life.