Functional modulation of contralateral bias in early and object-selective areas after stroke of the occipital ventral cortices

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• 作者：Maren Praß ; ; ^{uni.prass@gmail.com} ; Cathleen Grimsen ^{cgrimsen@uni-bremen.de} ; Manfred Fahle ^{mfahle@uni-bremen.de}
• 关键词：Patients ; Stroke ; Object categorization ; Agnosia ; Laterality ; FMRI
• 刊名：Neuropsychologia
• 出版年：2017
• 出版时间：27 January 2017
• 年：2017
• 卷：95
• 期：Complete
• 页码：73-85
• 全文大小：1571 K
• 卷排序：95

文摘

We studied the effect of unilateral ventral lesions on object categorization and its neural correlates. Patients performed a rapid object categorization task in the fMRI scanner. Patients are impaired in categorizing objects both contra- and ipsilesionally. Functional changes in visual cortices only in patients lesioned hemisphere. The relationship between impaired categorization and neural alteration is discussed.