Visual Line Bisection
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Os Eeitos da idade sobre o padrão de assimetrias táteis, visuais e hemiespaciais em destros e canhotos / The Effects of age on patterns of tactile, visual, and hemispatial asymmetries in right- and left-handers
Em testes de bisecção de linhas horizontais, os indivíduos normais tendem a partilhá-las à esquerda do verdadeiro ponto zero, fenômeno este denominado de pseudonegligência. As investigações clínicas revelaram que os mecanismos de controle sobre a alocação de atenção ao lado esquerdo do corpo foram profundamente afetados quando houve lesão loca
Publicado em: 2008
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2. Two techniques for the assessment of line bisection in visuo-spatial neglect: a single case study.
A patient with severe left neglect after surgery for basilar aneurysm is described. Her performance on freehand line bisection was compared and contrasted with the results from computerised visual display unit (VDU) presentation. In the latter format the patient makes her transections with a "mouse" controlled cursor arrow. The technique provides rigorous co
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3. The influence of stimulus properties on visual neglect.
Twenty five patients with right cerebral hemisphere damage and neglect participated in a series of bisection experiments. As expected, long lines were bisected to the right of true midpoint. By contrast, large circles and long white paper strips were bisected accurately, or with leftward errors. Small objects were less sensitive to stimulus properties: short
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4. Horizontal visual motion modulates focal attention in left unilateral spatial neglect.
Patients with unilateral spatial neglect are impaired in directing focal attention toward the contralesional side of space. Provision of static spatial cues on the neglected side has previously been shown to help overcome this deficit. Common movement of visual stimuli may also guide the allocation of spatial attention, although such effects have not been ex