[Contribution to anatomical and clinical studies of avoidance phenomena (author's transl)].
The authors report 5 cases of avoiding phenomenon of the hand from parietal lesions. Four of these patients were operated for intractable epilepsy, from a parietal cortectomy that implicated a certain amount of white matter. The avoiding phenomena observed are analyzed as elementary motor perturbations rather than a disturbance of motor comportment. The authors distinguish two types of avoiding phenomena: 1--Avoiding phenomenon of dystonic type occurs during any motor activity and persists during all its development. It is probably related to the removal of the cortex of the post-central gyrus and of the anterior part of the superior parietal lobule; 2--The initial avoiding phenomenon is brief and occurs only at the beginning of the movements which implicate solely the upper limb; it seems related to the removal of the internal part of the superior parietal lobule that corresponds approximately to areas 5 and 7 from Brodmann. Some hypotheses are discussed concerning the possible physio-pathological mechanisms of these disturbances.
D000293:Adolescent; D000328:Adult; D002541:Cerebral Decortication / Q000009:adverse effects*; D002544:Cerebral Infarction / Q000150:complications* / Q000473:pathology; D002648:Child; D004421:Dystonia / Q000209:etiology / Q000473:pathology; D004827:Epilepsy / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009069:Movement Disorders / Q000209:etiology* / Q000473:pathology; D010296:Parietal Lobe / Q000098:blood supply / Q000473:pathology / Q000601:surgery*
Contribution à l'étude anatomo-clinique des phénomenes d'évitement.