Category learning induces position invariance of pattern recognition across the visual field.

ABSTRACT: Human object recognition is considered to be largely invariant to translation across the visual field. However, the origin of this invariance to positional changes has remained elusive, since numerous studies found that the ability to discriminate between visual patterns develops in a largely location-specific manner, with only a limited transfer to novel visual field positions. In order to reconcile these contradicting observations, we traced the acquisition of categories of unfamiliar grey-level patterns within an interleaved learning and testing paradigm that involved either the same or different retinal locations. Our results show that position invariance is an emergent property of category learning. Pattern categories acquired over several hours at a fixed location in either the perip

SUBMITTER: Juttner M 

PROVIDER: S-EPMC2596832 | biostudies-literature | 2008 Feb

REPOSITORIES: biostudies-literature