Aphasic performance on a lexical decision task: multiple meanings and word frequency

Brain Lang. 1987 Jan;30(1):106-15. doi: 10.1016/0093-934x(87)90031-9.

Abstract

The lexical access of words varying in the number of meanings and frequency of occurrence was examined in fluent and nonfluent aphasic individuals and a control group of non-brain-damaged adults, using a lexical decision task. Fluent aphasic subjects performed similarly to nonfluent aphasic and normal subjects, showing that words with a high number of meanings and with a high frequency of occurrence were recognized as real words faster than words with few meanings or a low frequency of occurrence. While previous research has demonstrated that the number of meanings associated with a word exerts a powerful influence on the internal lexicon of normals, the results of this study suggest that brain damage resulting in aphasia does not disrupt this semantic organization.

Publication types

  • Comparative Study

MeSH terms

  • Aged
  • Aphasia / psychology*
  • Aphasia, Broca / psychology*
  • Aphasia, Wernicke / psychology*
  • Decision Making
  • Humans
  • Male
  • Middle Aged
  • Models, Psychological
  • Psycholinguistics
  • Reaction Time
  • Reading
  • Semantics*