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Direct linkLleras, Alejandro; Porporino, Mafalda; Burack, Jacob A.; Enns, James T. – Journal of Experimental Child Psychology, 2011
In this study, 7-19-year-olds performed an interrupted visual search task in two experiments. Our question was whether the tendency to respond within 500 ms after a second glimpse of a display (the "rapid resumption" effect ["Psychological Science", 16 (2005) 684-688]) would increase with age in the same way as overall search efficiency. The…
Descriptors: Visual Stimuli, Visual Perception, Children, Adolescents
Flanagan, Tara; Enns, James T.; Murphy, Melissa M.; Russo, Natalie; Abbeduto, Leonard; Randolph, Beth; Burack, Jacob A. – Brain and Cognition, 2007
The voluntary and reflexive orienting abilities of persons with Down syndrome and fragile X syndrome, at average MA levels of approximately 4 and 7 years, were compared with an RT task. Reflexive orienting abilities appeared to develop in accordance with MA for the participants with Down syndrome but not for those with fragile X syndrome. However,…
Descriptors: Down Syndrome, Mental Retardation, Visual Perception, Comparative Analysis
Peer reviewedAkhtar, Nameera; Enns, James T. – Journal of Experimental Child Psychology, 1989
Investigated the assumption that different aspects of visual selectivity depend on common processing resources by engaging observers aged 5, 7, 9, and 24 years in a task designed to examine the relations between covert shifts of attention and filtering. Covert orienting and filtering shared processing resources; filtering ability improved with…
Descriptors: Attention, Cognitive Processes, Cues, Psychological Studies
