Representation of grammatical categories of words in the brain

Argye E. Hillis, Alfonso Caramazza

Research output: Contribution to journalArticlepeer-review

Abstract

We report the performance of a patient who, as a consequence of left frontal and temporoparietal strokes, makes far more errors on nouns than on verbs in spoken output tasks, but makes far more errors on verbs than on nouns in written input tasks. This double dissociation within a single patient with respect to grammatical category provides evidence for the hypothesis that phonological and orthographic representations of nouns and verbs are processed by independent neural mechanisms. Furthermore, the opposite dissociation in the verbal output modality, an advantage for nouns over verbs in spoken tasks, by a different patient using the same stimuli has also been reported. This double dissociation across patients on the same task indicates that results cannot be ascribed to 'greater difficulty' with one type of stimulus, and provides further evidence for the view that grammatical category information is an important organizational principle of lexical knowledge in the brain.

Original languageEnglish (US)
Pages (from-to)396-407
Number of pages12
JournalJournal of cognitive neuroscience
Volume7
Issue number3
DOIs
StatePublished - 1995

ASJC Scopus subject areas

  • Cognitive Neuroscience

Fingerprint Dive into the research topics of 'Representation of grammatical categories of words in the brain'. Together they form a unique fingerprint.

Cite this