Neglect after right insular cortex infarction.
OBJECTIVE
Case reports have shown an association between right insular damage and neglect. The aim of this study was to examine the incidence of neglect among patient groups with right or left insular infarction.


METHODS
We examined neglect in 9 right-handed subjects with insular stroke as evidenced by CT and/or MRI scans (4 with right insular and 5 with left insular cerebrovascular accident) between 4 and 8 weeks after acute stroke with tests of visual, tactile, and auditory perception.


RESULTS
Compared with patients with left insular lesions, patients with right insular lesions showed significant neglect in the tactile, auditory, and visual modalities.


CONCLUSIONS
The right insular cortex seems to have a role in awareness of external stimuli, and infarction in this area may lead to neglect in multisensory modalities.
Manes
F
F
Department of Psychiatry, University of Iowa College of Medicine, Iowa City, Iowa, USA.
Paradiso
S
S
Springer
J A
JA
Lamberty
G
G
Robinson
R G
RG
D000161:Acoustic Stimulation; D000368:Aged; D001288:Attention / Q000502:physiology; D001828:Body Image; D002540:Cerebral Cortex / Q000503:physiopathology*; D002544:Cerebral Infarction / Q000150:complications* / Q000453:epidemiology; D004292:Dominance, Cerebral / Q000502:physiology; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012678:Sensation Disorders / Q000453:epidemiology / Q000209:etiology*