Article

An Electrophysiological Investigation of Semantic Incongruity Processing by People with Asperger’s Syndrome

University of Cambridge Section of Developmental Psychiatry Douglas House, 18b Trumpington Road Cambridge CB2 2AH UK Douglas House, 18b Trumpington Road Cambridge CB2 2AH UK; Information Management, Defence Science and Technology Laboratory (DSTL) Human Sciences Team Wiltshire UK Wiltshire UK
Journal of Autism and Developmental Disorders (impact factor: 3.34). 01/2007; 37(2):281-290. DOI:10.1007/s10803-006-0167-1 pp.281-290

ABSTRACT The aim of this study was to investigate whether a physiological measure of impaired use of context could be obtained in people
with Asperger’s Syndrome (AS). The experimental paradigm employed was the use of electroencephalography to measure the detection
of semantic incongruity within written sentences, as indexed by an N400 event-related potential. Whilst the seven controls
appropriately demonstrated N400 potentials only to semantically incongruent stimuli, the seven participants with AS inappropriately
demonstrated N400 potentials to congruent stimuli. These results are compatible with the possibility that the participants
with AS did not use the context within sentences to predict the final word of the sentences.

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Keywords

Asperger’s Syndrome
 
congruent stimuli
 
detection
 
final word
 
inappropriately
 
N400 event-related potential
 
N400 potentials
 
physiological measure
 
semantic incongruity
 
semantically incongruent stimuli
 
seven participants
 

Howard Ring