In multiple conjunction search, the target is not known in advance but is defined only with respect to the distractors in a given search array, thus reducing the contributions of bottom-up and top-down attentional and perceptual processes during search. This study investigated whether the superior @entity227 typically demonstrated by individuals with @entity72 ( @entity72 ) would be evident in multiple conjunction search. Thirty-two @entity1 with @entity72 and 32 age- and nonverbal IQ-matched @entity245 ( @entity245 ) @entity1 were administered a multiple conjunction search task. Contrary to findings from the large majority of studies on visual search in @entity72 , response times of individuals with @entity72 were significantly slower than those of their @entity245 peers. Evidence of slowed performance in @entity72 suggests that the mechanisms responsible for superior @entity72 performance in other @entity227 are not available in multiple conjunction search. Although the @entity72 group failed to exhibit superior performance, they showed efficient search and intertrial priming levels similar to the @entity245 group. Efficient search indicates that @entity72 @entity1 were able to group distractors into distinct subsets. In summary, while demonstrating grouping and priming effects comparable to those exhibited by their @entity245 peers, @entity1 with @entity72 were slowed in their performance on a multiple conjunction search task, suggesting that their usual superior performance in @entity227 is specifically dependent on top-down and/or bottom-up attentional and perceptual processes. @entity2438 Res 2016, 9: 333-339.    2015 International Society for @entity2438 Research, Wiley Periodicals, Inc.

Slowed Search in the Context of Unimpaired Grouping in XXXX : Evidence from Multiple Conjunction Search.

@entity1 :: ('9606', 'Species') :: ['participants', 'children'] @entity227 :: ('MESH:D014786', 'Disease') :: ['visual search skills', 'visual search tasks', 'visual search paradigms'] @entity245 :: ('MESH:D002658', 'Disease') :: ['TD', 'typically developing'] @entity2438 :: ('MESH:D001321', 'Disease') :: ['Autism'] @entity72 :: ('MESH:D002659', 'Disease') :: ['ASD', 'autism spectrum disorder']
@entity2438 :: (MESH:D001321,Disease) :: ['Autism']
