The influence of semantic and perceptual factors on lexical comprehension in aphasic and right brain-damaged patients

S. Chieffi, S. Carlomagno, M. C. Silveri, G. Gainotti

Research output: Contribution to journalArticle

Abstract

We investigated whether the errors made by aphasic patients and right brain-damaged (RBD) patients on a word-picture matching test were differently related to the semantic and perceptual difficulties of the task. To this effect, the target picture was presented in one condition along with two semantically similar distractors, in another condition with two perceptually similar distractors, and in a third condition with two distractors that were both semantically and perceptually similar. There were also two control conditions in which part of targets that had been originally shown with semantic distractors were now presented with perceptual distractors and viceversa. The findings were consistent with the hypothesis that aphasics mainly fail when the task involves semantic discrimination and RBD patients when it involves perceptual discrimination. In aphasics the semantic perceptual condition produced the highest number of errors, but this was due, it was argued, to an increase of the semantic demands of the task.

Original languageEnglish
Pages (from-to)591-598
Number of pages8
JournalCortex
Volume25
Issue number4
Publication statusPublished - 1989

Fingerprint

Semantics
Brain
Patient Rights
Discrimination (Psychology)

ASJC Scopus subject areas

  • Clinical Neurology
  • Neuroscience(all)

Cite this

Chieffi, S., Carlomagno, S., Silveri, M. C., & Gainotti, G. (1989). The influence of semantic and perceptual factors on lexical comprehension in aphasic and right brain-damaged patients. Cortex, 25(4), 591-598.

The influence of semantic and perceptual factors on lexical comprehension in aphasic and right brain-damaged patients. / Chieffi, S.; Carlomagno, S.; Silveri, M. C.; Gainotti, G.

In: Cortex, Vol. 25, No. 4, 1989, p. 591-598.

Research output: Contribution to journalArticle

Chieffi, S, Carlomagno, S, Silveri, MC & Gainotti, G 1989, 'The influence of semantic and perceptual factors on lexical comprehension in aphasic and right brain-damaged patients', Cortex, vol. 25, no. 4, pp. 591-598.
Chieffi, S. ; Carlomagno, S. ; Silveri, M. C. ; Gainotti, G. / The influence of semantic and perceptual factors on lexical comprehension in aphasic and right brain-damaged patients. In: Cortex. 1989 ; Vol. 25, No. 4. pp. 591-598.
@article{63bdea3481c648b18a068a368a926386,
title = "The influence of semantic and perceptual factors on lexical comprehension in aphasic and right brain-damaged patients",
abstract = "We investigated whether the errors made by aphasic patients and right brain-damaged (RBD) patients on a word-picture matching test were differently related to the semantic and perceptual difficulties of the task. To this effect, the target picture was presented in one condition along with two semantically similar distractors, in another condition with two perceptually similar distractors, and in a third condition with two distractors that were both semantically and perceptually similar. There were also two control conditions in which part of targets that had been originally shown with semantic distractors were now presented with perceptual distractors and viceversa. The findings were consistent with the hypothesis that aphasics mainly fail when the task involves semantic discrimination and RBD patients when it involves perceptual discrimination. In aphasics the semantic perceptual condition produced the highest number of errors, but this was due, it was argued, to an increase of the semantic demands of the task.",
author = "S. Chieffi and S. Carlomagno and Silveri, {M. C.} and G. Gainotti",
year = "1989",
language = "English",
volume = "25",
pages = "591--598",
journal = "Cortex",
issn = "0010-9452",
publisher = "Masson SpA",
number = "4",

}

TY - JOUR

T1 - The influence of semantic and perceptual factors on lexical comprehension in aphasic and right brain-damaged patients

AU - Chieffi, S.

AU - Carlomagno, S.

AU - Silveri, M. C.

AU - Gainotti, G.

PY - 1989

Y1 - 1989

N2 - We investigated whether the errors made by aphasic patients and right brain-damaged (RBD) patients on a word-picture matching test were differently related to the semantic and perceptual difficulties of the task. To this effect, the target picture was presented in one condition along with two semantically similar distractors, in another condition with two perceptually similar distractors, and in a third condition with two distractors that were both semantically and perceptually similar. There were also two control conditions in which part of targets that had been originally shown with semantic distractors were now presented with perceptual distractors and viceversa. The findings were consistent with the hypothesis that aphasics mainly fail when the task involves semantic discrimination and RBD patients when it involves perceptual discrimination. In aphasics the semantic perceptual condition produced the highest number of errors, but this was due, it was argued, to an increase of the semantic demands of the task.

AB - We investigated whether the errors made by aphasic patients and right brain-damaged (RBD) patients on a word-picture matching test were differently related to the semantic and perceptual difficulties of the task. To this effect, the target picture was presented in one condition along with two semantically similar distractors, in another condition with two perceptually similar distractors, and in a third condition with two distractors that were both semantically and perceptually similar. There were also two control conditions in which part of targets that had been originally shown with semantic distractors were now presented with perceptual distractors and viceversa. The findings were consistent with the hypothesis that aphasics mainly fail when the task involves semantic discrimination and RBD patients when it involves perceptual discrimination. In aphasics the semantic perceptual condition produced the highest number of errors, but this was due, it was argued, to an increase of the semantic demands of the task.

UR - http://www.scopus.com/inward/record.url?scp=0024841144&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024841144&partnerID=8YFLogxK

M3 - Article

C2 - 2612178

AN - SCOPUS:0024841144

VL - 25

SP - 591

EP - 598

JO - Cortex

JF - Cortex

SN - 0010-9452

IS - 4

ER -