Article

Hemispatial neglect is a common disabling condition following brain damage to the
right hemisphere. Generally, it involves behavioral bias directed ipsilaterally
to the damaged hemisphere and loss of spatial awareness for the contralesional
side. In this syndrome, several clinical subtypes were identified. The objective
of this article is to provide a nosological analysis of the recent data from the
literature on the different subtypes of neglect (visual, auditory, somatosensory,
motor, egocentric, allocentric and representational neglect), associated
ipsilesional and contralesional productive manifestations and their anatomical
lesion correlates. These different anatomical-clinical subtypes can be associated
or dissociated. They reflect the heterogeneity of this unilateral neglect
syndrome that cannot be approached or interpreted in a single manner. We propose
that these subtypes result from different underlying deficits: exogenous
attentional deficit (visual, auditory neglect); representational deficit
(personal neglect, representational neglect, hyperschematia); shift of the
egocentric reference frame (egocentric neglect); attentional deficit between
objects and within objects (allocentric neglect), endogenous attentional deficit
(representational neglect) and transsaccadic working memory
or spatial remapping
deficit (ipsilesional productive manifestations). Taking into account the
different facets of the unilateral neglect syndrome should promote the
development of more targeted cognitive rehabilitation protocols.
CI - Copyright (c) 2016 Elsevier Masson SAS. All rights reserved.

Langue : ANGLAIS