Dominant functions of right versus the left hemisphere.
The aim of this work was to study the function of the left and right cerebral hemispheres concerning linguistic, musical and cognitive abilities, through the evaluation of the deterioration of these domains following lesions of either hemisphere. The study was carried out on 80 subjects (60 males, 20 females) with a mean age of 48 years. Subjects were categorized into four groups, 20 in each. Group I had left brain lesion with dysphasia; group II, left brain lesion without dysphasia; group III, right brain lesion without dysphasia; group IV, control. Patient's evaluation included a dysphasia test, psychometric battery, tests for musical abilities, brain CT scanning and EEG. Group I showed deterioration in the linguistic abilities, while groups II and III had intact abilities. Deterioration in musical abilities was noticed in group III, with normal scores in groups I and II. There was deterioration of the intellectual abilities in all patients' groups, to varying degrees. The significance of the results is discussed.
Mostafa
M
M
Department of Neurology, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
Kotby
M N
MN
Barakah
M
M
el-Sady
S
S
Allosh
T
T
Elshobary
A
A
Saleh
M
M
D000328:Adult; D000368:Aged; D001037:Aphasia / Q000503:physiopathology*; D001921:Brain / Q000000981:diagnostic imaging; D002544:Cerebral Infarction / Q000503:physiopathology*; D003071:Cognition / Q000502:physiology*; D004292:Dominance, Cerebral / Q000502:physiology*; D005260:Female; D006801:Humans; D007802:Language; D007807:Language Tests; D008297:Male; D008875:Middle Aged; D009146:Music; D011581:Psychological Tests; D014057:Tomography, X-Ray Computed