Word frequency and subsequent memory effects studied using event-related fMRI.

Published

Journal Article

Event-related fMRI was used to evaluate the effect of printed word frequency on the subsequent recognition of words incidentally encoded while 16 healthy right-handed volunteers performed living/nonliving judgments. Semantic judgment took longer for low-frequency words. These words were more accurately recognized than high-frequency words at later testing. Low-frequency words were also associated with relatively greater left prefrontal, left fusiform gyrus, and anterior cingulate activation. Words that were subsequently recognized were associated with greater activation in the left prefrontal region compared to those that were forgotten. These findings suggest the specific brain regions where less commonly encountered words are processed in a manner that facilitates their subsequent recognition.

Full Text

Duke Authors

Cited Authors

  • Chee, MWL; Westphal, C; Goh, J; Graham, S; Song, AW

Published Date

  • October 1, 2003

Published In

Volume / Issue

  • 20 / 2

Start / End Page

  • 1042 - 1051

PubMed ID

  • 14568474

Pubmed Central ID

  • 14568474

Electronic International Standard Serial Number (EISSN)

  • 1095-9572

International Standard Serial Number (ISSN)

  • 1053-8119

Digital Object Identifier (DOI)

  • 10.1016/s1053-8119(03)00335-5

Language

  • eng