Visual search in typically developing toddlers and toddlers with Fragile X or Williams syndrome

• DOI: 10.1111/j.1467-7687.2004.00327.x
• Publication Date: 2004-01-16T16:42:50Z
• Authors: Gaia Scerif; Kim Cornish; John Wilding; Jon Driver; Annette Karmiloff...
• Keywords: Typically developing; Fragile X Syndrome; Visual Search; Vulnerability; Mental age

Abstract Visual selective attention is the ability to attend relevant visual information and ignore irrelevant stimuli. Little known about its typical atypical development in early childhood. Experiment 1 investigates typically developing toddlers’ search for multiple targets on a touch‐screen. Time hit target, distance between successively touched items, accuracy error types revealed changes 2‐ 3‐year‐olds’ vulnerability manipulations of display. 2 examined performance by toddlers with Fragile X syndrome (FXS) or Williams (WS). Both these groups produced equivalent mean time per touch as matched chronological mental age; but both larger number errors. Toddlers WS confused distractors more than other groups; while FXS perseverated previously found targets. These findings provide how develops toddlers, reveal distinct deficits atypically toddlers.