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J Neurol Neurosurg Psychiatry. 1996 Oct;61(4):396-400.

Imitation and utilisation behaviour.

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1
Neurology Department, University of Modena, Italy.

Abstract

OBJECTIVE:

To investigate the incidence, anatomical correlates, and clinical features of imitation and utilisation behaviour, which are thought by Lhermitte and coworkers to represent a reliable and frequent index of frontal lobe disease.

METHODS:

78 patients with hemispheric local lesions were tested in two separate sessions, in which their reactions to a series of gestures performed by the examiner and to the presentation of a set of objects were recorded. The patients were stratified into a frontal (n = 52) and a non-frontal group (n = 26) on the basis of their CT data.

RESULTS AND CONCLUSIONS:

Imitation behaviour was present in 39% of the frontal patients and was mainly associated with medial and lateral lesions, at odds with the claim of Lhermitte et al that it is a constant accompaniment of lower, mediobasal lesions. In the non-frontal group it was found in three patients, all with damage to the deep nuclei region. Utilisation behaviour was a much rarer phenomenon, present in only two patients, both of whom had frontal damage. Neither imitation behaviour nor utilisation behaviour were found in patients with retrorolandic cortical lesions.

PMID:
8890779
PMCID:
PMC486581
[Indexed for MEDLINE]
Free PMC Article
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