In this article, we describe a patient, CN, with unilateral left posterior brain damage, who shows a rare occurrence of left ipsilesional neglect limited to mental representations. CN's clinical pattern is consistent with the hypothesis that different mechanisms underlie perceptual and representational neglect. We also discuss an interpretation of representational neglect based on the different involvement of the two hemispheres in visual imagery processes. In particular, left brain lesions do not present the typical strong contralesional bias and may lead to an impairment of mental generation of either side of the image, depending on pre-morbid and methodological factors.
Left ipsilesional neglect for visual imagery: A mental image generation impairment? / Cocchini, G; Bartolo, A; Nichelli, Paolo Frigio. - In: NEUROCASE. - ISSN 1355-4794. - STAMPA. - 12:3(2006), pp. 197-206. [10.1080/13554790600665516]
Left ipsilesional neglect for visual imagery: A mental image generation impairment?
NICHELLI, Paolo Frigio
2006
Abstract
In this article, we describe a patient, CN, with unilateral left posterior brain damage, who shows a rare occurrence of left ipsilesional neglect limited to mental representations. CN's clinical pattern is consistent with the hypothesis that different mechanisms underlie perceptual and representational neglect. We also discuss an interpretation of representational neglect based on the different involvement of the two hemispheres in visual imagery processes. In particular, left brain lesions do not present the typical strong contralesional bias and may lead to an impairment of mental generation of either side of the image, depending on pre-morbid and methodological factors.
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