This study reports a revised version of the 'Reading the Mind in the Voice' (RMV) task. The original task (Rutherford et al., (2002), Journal of Autism and Developmental Disorders, 32, 189-194) suffered from ceiling effects and limited sensitivity. To improve that, the task was shortened and two more foils were added to each of the remaining items. About 50 adults with Asperger Syndrome (AS) or High Functioning Autism (HFA) and 22 matched controls took the revised task. Results show the revised task has good reliability and validity, is harder, and more sensitive in distinguishing the AS/HFA group from controls. Verbal IQ was positively correlated with performance, and females performed worse than males in the AS/HFA group. Results are discussed with regard to multi modal empathizing deficits in autism spectrum conditions (ASC).
This study describes a longitudinal design (following subjects described in Rutherford & Rogers [2003, Journal of Autism and Developmental Disorder, 33, 289-302]) to test for predictors of pretend play competence in a group of children with autism. We tested the hypothesis that developmental change in pretend play performance can be predicted by earlier measures of either executive function, intersubjectivity, imitation, or general development. Participants at the time of follow-up testing were 28 children with autistic disorder (mean chronological age (CA) 57.6 months), 18 children with other developmental disorders (mean CA 59.0 months), and 27 typically developing children (mean CA 30.1 months). Children with autism were profoundly delayed given both competence (prompted) measures as well as performance (spontaneous) measures. Joint attention at time 1 strongly and uniquely predicted pretend play development.
Typical adults use predictable scan patterns while observing faces. Some research suggests that people with autism spectrum disorders (ASD) instead attend to eyes less, and perhaps to the mouth more. The current experiment was designed as a direct measure of scan paths that people with and without ASD use when identifying simple and complex emotions. Participants saw photos of emotions and chose emotion labels. Scan paths were measured via infrared corneal reflectance. Both groups looked significantly longer at eyes than mouth, and neither overall looking time at eyes nor first fixations distinguished the groups. These results are contrary to suggestions that those with ASD attend preferentially to the mouth and avoid the eyes. Furthermore, there was no interaction between group and area of the face: the ratio of attention between eyes and mouth did not differ between the ASD and control groups. However, those with ASD looked at the eyes less than the control group when viewing complex emotions.
When perceiving emotional facial expressions, people with autistic spectrum disorders (ASD) appear to focus on individual facial features rather than configurations. This paper tests whether individuals with ASD use these features in a rule-based strategy of emotional perception, rather than a typical, template-based strategy by considering outcome implications of these strategies. Rule-based strategies are more tolerant of extreme stimuli than are template-based ones. Tolerance for exaggerated emotional facial expressions in individuals with ASD compared to IQ and education matched controls was tested in a forced-choice paradigm. For five of six emotions, those with ASD were more likely to accept the most exaggerated images as most realistic. People with ASD appear to rely more heavily on a rule-based strategy than a template-based strategy in perceiving emotional facial expressions.
Where the non-human animal research investigating reproduction-induced cognitive reorganization has focused on neural plasticity and adaptive advantage in response to the demands associated with pregnancy and parenting, human studies have primarily concentrated on pregnancy-induced memory decline. The current review updates Henry and Rendell's 2007 meta-analysis, and examines cognitive reorganization as the result of reproductive experience from an adaptationist perspective. Investigations of pregnancy-induced cognitive change in human females may benefit by focusing on areas, such as social cognition, where a cognitive advantage would serve a protective function, and by extending the study duration beyond pregnancy into the postpartum period.
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