Article

OBJECTIVE : To study the distributions and the neural correlates of left
hemispatial neglect with different reference frames.
DESIGN: Data were collected
from patients with right brain injury who participated in a case series. SETTING:
Hospital departments of rehabilitation and neurology. PARTICIPANTS: Right
brain-damaged patients (N=110). MAIN OUTCOME
MEASURES: The frequency of left hemispatial neglect with different reference
frames was investigated, and the respective brain lesions were displayed and
analyzed. RESULTS: Not all subjects finished predesigned neglect tests because of
their condition: 8 of the 55 neglect patients were unable to complete the test
for classification. Thirty (63.83%) of 47 subjects with neglect displayed both
allocentric and egocentric neglect, while 17 subjects showed pure egocentric
neglect. The lesions in the inferior frontal gyrus, precentral gyrus, postcentral
gyrus, superior temporal gyrus (STG), middle temporal gyrus (MTG), insula, and
surrounding white matters were more frequent in the neglect group than in the
control group. Compared with the egocentric neglect group, the lesions in the
right STG, MTG, lenticular nucleus, and the surrounding white matter were damaged
more frequently in the group displaying both allocentric and egocentric neglect.
CONCLUSIONS: More than half of the subjects with left neglect after right brain
injury have both egocentric and allocentric neglect. The right inferior frontal
gyrus, precentral gyrus, postcentral gyrus, STG, MTG, insula, and the surrounding
white matter are associated with left hemispatial neglect. Left allocentric
neglect is associated with the right STG, MTG, and lenticular nucleus.
CI - Copyright (c) 2012 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS