Arnaud Saj - Academia.edu (original) (raw)

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Papers by Arnaud Saj

Stroke syndromes, 2001

ABSTRACT

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Stroke; a journal of cerebral circulation, 2006

To evaluate the effect of prism adaptation (PA) on spatial neglect signs. Ten patients (hemianopi... more To evaluate the effect of prism adaptation (PA) on spatial neglect signs. Ten patients (hemianopia in 6) and 8 control subjects were included. Tasks were reading single words, nonwords, and a text, bell cancellation, line bisection, and scene drawing, before and after adaptation, with either deviating or neutral prisms. Errors were more frequent in patients but without any specific effect of PA. We found partial improvement at the late sessions, independent of prisms. We did not confirm the efficacy of PA on spatial neglect.

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Journal of neurology, 2005

The subjective visual vertical (SVV) was investigated in right brain-damaged (RBD) patients with ... more The subjective visual vertical (SVV) was investigated in right brain-damaged (RBD) patients with pusher syndrome (PS) which is thought to stem from an erroneous perception of body orientation. The participants, sitting or lying, had to align a luminous rod with gravity. The task was performed in darkness with the rod centred to the body, or placed in the left (neglected) or in the right hemispace. The error, negligible in the control group (+0.3 degrees; n = 6) and mild in the nonneglect non-pusher patients (-1.8 degrees; n = 6), was clearly clockwise in the pusher neglect patients (N+P+; +7.2 degrees; n = 4), but anticlockwise in the non-pusher neglect patients (-6.6 degrees; n = 6). In both neglect groups, error was greater when the rod was in the left space. In N+P+ patients, the performance was strongly affected by posture (lying: +5.2 degrees ; sitting: +9.2 degrees ). Intra-individual variability was also much greater in this group. This study confirms the contralesional devia...

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