In:
Journal of Vestibular Research, IOS Press, Vol. 10, No. 6 ( 2000-12-31), p. 301-309
Abstract:
We determined the effects of hippocampal lesions on idiothetic spatial orientation by exposing 14 patients with unilateral hippocampal atrophy and/or sclerosis (HAS) and 10 normal controls to random rotational displacements ( ± 30 ∘ – 180 ∘ ) in darkness and examined their ability to rotate themselves back to the initial position. In comparison to controls, the patients responses were distinctly hypometric ( p 〈 0.005). Patients with right hippocampal lesions showed a trend towards higher come back errors ( p = 0.08). Normal controls could maintain their accuracy over five consecutive trials. Patients, beginning with less accuracy, showed significant improvement after each trial ( p 〈 0.001). The findings suggest that unilateral HAS impair the immediate recall of idiothetic spatial information, but does not affect long-term spatial learning.
Type of Medium:
Online Resource
ISSN:
1878-6464
,
0957-4271
DOI:
10.3233/VES-2000-10607
Language:
Unknown
Publisher:
IOS Press
Publication Date:
2000
detail.hit.zdb_id:
2034037-0