A model-guided dissociation between subcortical and cortical contributions to word recognition.

ABSTRACT: Neurocognitive studies of visual word recognition have provided information about brain activity correlated with orthographic processing. Some of these studies related the orthographic neighborhood density of letter strings to the amount of hypothetical global lexical activity (GLA) in the brain as simulated by computational models of word recognition. To further investigate this issue, we used GLA of words and nonwords from the multiple read-out model of visual word recognition (MROM) and related this activity to neural correlates of orthographic processing in the brain by using functional magnetic resonance imaging (fMRI). Words and nonwords elicited linear effects in the cortex with increasing BOLD responses for decreasing values of GLA. In addition, words showed increasing linear BOLD

SUBMITTER: Braun M 

PROVIDER: S-EPMC6418272 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature