First came the trees, then the forest: Developmental changes during childhood in the processing of visual local-global patterns according to the meaningfulness of the stimuli
Developmental Psychology. 2008-01-01; 44(1): 245-253
Read on PubMed
1. Dev Psychol. 2008 Jan;44(1):245-53. doi: 10.1037/0012-16188.8.131.52.
First came the trees, then the forest: developmental changes during childhood in
the processing of visual local-global patterns according to the meaningfulness of
Poirel N(1), Mellet E, Houdé O, Pineau A.
(1)Groupe d’imagerie neurofonctionnelle, Unite Mixte de Recherche 6194, Centre
National de la Recherche Scientifique, Commissariat a l’Energie Atomique,
Universite de Caen and Universite Paris-Descarte.
This study investigated how global and local perceptual processes evolve during
childhood according to the meaningfulness of the stimuli. Children had to decide
whether visually presented pairs of items were identical or not. Items consisted
of global forms made up of local forms. Both global and local forms could
represent either objects or nonobjects. In dissimilar pairs, items differed at
one level (target level), while the other level included similar forms on both
sides (irrelevant level). The results indicate an evolution from local preference
at 4 years of age to adult-like global preference at 9 years of age. Moreover, as
previously reported in adults, regardless of age, identification impaired
performance when the irrelevant level was made of objects and the target level
was made of nonobjects (interference). However, in younger children, this
interference existed even when objects were present at all levels, suggesting
that the strategy used to perform the comparison task also varied according to
Copyright (c) 2008 APA.
PMID: 18194023 [Indexed for MEDLINE]