Atypically heterogeneous vertical first fixations to faces in a case series of people with developmental prosopagnosia

ABSTRACT

When people recognize faces, they normally move their eyes so that their first fixation is in the optimal location for efficient perceptual processing. This location is found just below the centre-point between the eyes. This type of attentional bias could be partly innate, but also an inevitable developmental process that aids our ability to recognize faces. We investigated whether a group of people with developmental prosopagnosia would also demonstrate neurotypical first fixation locations when recognizing faces during an eye-tracking task. We found evidence that adults with prosopagnosia had atypically heterogeneous first fixations in comparison to controls. However, differences were limited to the vertical, but not horizontal, plane of the face. We interpret these findings by suggesting that subtle changes to face-based eye movement patterns in developmental prosopagnosia may underpin their face recognition impairments, and suggest future work is still needed to address this possibility.     

A measure of inspection time in 4‐year‐old children: The Benny Bee IT task

Inspection time (IT) measures speed of information processing without the confounding influence of motor speed. While IT has been found to relate to cognitive abilities in adults and older children, no measure of IT has been validated for use with children younger than 6 years. This study examined the validity of a new measure of IT for preschool children. N=71 4‐year‐old children completed the new IT task and standardized measures of fluid ability, visuospatial ability, and speed of processing. N=50 adults completed the same tasks and, additionally, a standard IT task. Results showed that the new IT task is a stable, reliable measure of IT in 4‐year‐old children. The new task had reasonable concurrent validity with the standard IT task in adults and the relationships between cognitive abilities, particularly general cognitive ability, and IT are sufficiently similar in young children and adults to suggest that the new IT task may be a useful tool for research in populations where IT was previously not measurable.     

SEX ROLE SATISFACTION AMONG AUSTRALIAN CHILDREN: SOME SEX, AGE, AND CULTURAL GROUP COMPARISONS

Children's satisfaction with being a member of their own sex was explored within two Australian samples. In a national sample of 2,268 children, grades 1–6, trends were similar to those reported in the United States. Girls were less satisfied with their sex role than boys, and older girls were more dissatisfied than younger girls. The most frequent reason girls offered for dissatisfaction with their sex was restriction of sports opportunities. In a smaller sample of 9–11-year-olds (133 boys, 146 girls), chosen to include adequate representation of children of non-Anglo immigrants, it was found that while Anglo-Australian girls were less satisfied with their sex role than boys, non-Anglo girls were just as satisfied as the boys. The non-Anglo girls were no higher in global satisfaction with themselves or with their lives in general than other children. They were, however, less likely to offer self-definitions that included sports abilities and interests. While non-Anglo parents observed a stronger public/private division of labor in certain childcare activities, this difference was not associated with children's satisfaction with their sex role. However, across the entire sample, children's sex-role satisfaction was associated with parents' division of labor on two tasks on which cultural groups did not differ—disciplining and comforting.