Visual Disorientation With Special Reference to Lesions of the Right Cerebral Hemisphere

Brain, W. Russell

doi:10.1093/brain/64.4.244

Cited by 667 publications

(166 citation statements)

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“…Accordingly, researchers in several disciplines have differentiated the space close to the body from that farther away (e.g., Brain, 1941;Hall, 1966;Sommer, 1969). Within cognitive neuroscience, a large literature has demonstrated that the near (or peripersonal) space immediately surrounding the body is represented differently from the far (or extrapersonal) space, farther away.…”

Section: Introductionmentioning

confidence: 99%

Right hemisphere control of visuospatial attention in near space

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Right hemisphere control of visuospatial attention in near space

et al. 2015

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“…Left hemisphere PPC patients have not yet been tested on these tasks, so it is possible that the left PPC is the critical structure. Several investigators have proposed that distinct neural circuits underlie the processing of spatial regions very near the body (peripersonal space) versus more distant regions (extrapersonal space) [8,46,52]. In particular, Previc [46] has proposed that the right hemisphere plays a greater role in peripersonal operations, with the left hemisphere more specialized for extrapersonal operations.…”

Section: Discussionmentioning

confidence: 99%

Intact spatial updating during locomotion after right posterior parietal lesions

et al. 2000

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One function of the posterior parietal cortex (PPC) is to monitor and integrate sensory signals relating to the current pointing direction of the eyes. We investigated the possibility that the human PPC also contributes to spatial updating during larger-scale behaviors. Two groups of patients with brain injuries either including or excluding the right hemisphere PPC and a group of healthy subjects performed a visually-directed walking task, in which the subject views a target and then attempts to walk to it without vision. All groups walked without vision accurately and precisely to remembered targets up to 6 m away; the patient groups also performed similarly to the healthy controls when indicating egocentric distances using non-motoric responses. These results indicate that the right PPC is not critically involved in monitoring and integrating non-visual self-motion signals, at least along linear paths. In addition, visual perception of egocentric distance in multi-cue environments is immune to injury of a variety of brain areas. 7

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“…The clinical syndrome that comes closest to an awareness deficit is hemispatial neglect, the loss of processing of stimuli usually on the left side of space after damage to the right hemisphere of the brain (Brain, 1941;Critchley, 1953). Patients classically fail to report, react to, or notice anything on the left half of space, whether visual, auditory, tactile, or memory.…”

Section: Prediction 1: Damage To the Machinery For Social Perception mentioning

confidence: 99%

“…A parietal locus for neglect is certainly a more traditional view (Brain, 1941;Critchley, 1953;Gross & Graziano, 1995). Neglect symptoms can also be observed after frontal lesions, though they tend to be less severe (Heilman & Valenstein, 1972a;Mesulam, 1999;Ptak & Schnider, 2010).…”

Section: Prediction 1: Damage To the Machinery For Social Perception mentioning

confidence: 99%