Spatial attention deficits in humans: A comparison of superior parietal and temporal-parietal junction lesions

Frances J. Friedrich, Robert Egly, Robert D. Rafal, Diane Beck

Research output: Contribution to journalArticle

Abstract

Although clinical evidence of spatial attention deficits, such as neglect and extinction, is typically associated with lesions of the right temporal-parietal junction, recent evidence has suggested an important role for the superior parietal lobe. Two groups of patients, selected for lesions at the temporal-parietal junction including the superior temporal gyms (TPJ group), or for lesions involving the parietal but not the superior temporal region (PAR group), performed cued-target detection tasks in 2 experiments. An extinction-like response time pattern was found for the TPJ but not the PAR group. In addition, both groups were able to use expectancy information, in the form of cue predictiveness, suggesting that separate mechanisms mediate exogenous and endogenous processes during attention shifts.

Original languageEnglish (US)
Pages (from-to)193-207
Number of pages15
JournalNeuropsychology
Volume12
Issue number2
DOIs
StatePublished - Apr 1998
Externally publishedYes

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ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology

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