Motor response selection in children with fetal alcohol spectrum disorders

Neurotoxicology and Teratology
Roger W SimmonsEdward P Riley

Abstract

Previous work has reported timing delays in motor response selection in children with prenatal exposure to alcohol when the information load involved responding to two stimulus choices. The present study examined whether the delay in response selection extends to conditions in which the information load is increased to four and eight stimulus choices. Twenty children aged between 12 and 17 years with fetal alcohol spectrum disorders (FASD) were compared to 17 non-alcohol-exposed controls (NC) on a reaction time (RT) task involving 1, 2, 4 or 8 visual stimulus choices. The task demands required the participant to release a response key as fast as possible when the stimulus light electronically paired with the response key was activated. With the number of stimulus choices expressed on a logarithmic scale, there was a significant and linear increase in RT for the FASD children as predicted by information processing theory. Additionally, the increase in RT for the FASD group was comparable to that observed for the NC children at each level of stimulus choice examined. It was concluded that FASD adolescents require additional time to process increasing amount of information, but that the time required for motor response selection i...Continue Reading

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Citations

Apr 20, 2011·Neuropsychology Review·Sarah N MattsonTanya T Nguyen
Apr 7, 2011·Perceptual and Motor Skills·Roger W SimmonsSarah N Mattson
Jun 10, 2008·Alcohol·Julie A Mennella, Catherine A Forestell
Dec 5, 2008·Alcoholism, Clinical and Experimental Research·Roger W SimmonsSarah N Mattson
Jun 15, 2011·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·V BalaszczukC A Beltramino
Mar 17, 2015·The Nurse Practitioner·Elizabeth L Roszel
Sep 28, 2017·Journal of Pediatric Neuropsychology·Leila Glass, Sarah N Mattson

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