Dominanţa emisferică cerebrală şi lateralitatea metode şi procedee de examinare

Dominanţa emisferică cerebrală şi lateralitatea metode şi procedee de examinare

Cerebral Hemispheric Dominance and Lateralization. Examination methods and procedures

Vasile Radu PREDA

On the basis of electrophysiological and neuropsychological investigations the existence of cerebral hemispheric dominance has been established. Thus, a certain psycho-behavioural function may not be equally governed by either the left or the right hemisphere, a tendency towards lateralization coming into play (Sperri, 1974; Arseni, Golu, Dănăilă, 1983; Funnell, Carballis, Gazzanga, 2000). The functional asymmetry of the analysers is encountered both at the peripheral level, through the sensory-motor lateralization of paired receptors, and at the cortical level, through the asymmetrical functioning of the cerebral hemispheres. Consequently, tests for hemispheric dominance, as well as tests for lateralization must, respectively, be employed. When examining cerebral hemispheric dominance and lateralization, the characteristics of the organs under investigation are taken into account, and so is the age of the subjects. The examination of functional asymmetry in the case of analyzers with paired receptors has relied on an impressive number of trials, procedures, tests and questionnaires on lateralization, all suitable for the subjects’ age and for the psycho-physiological characteristics of the respective couple of paired organs. The combined use of lateralization tests specifically adapted for all paired organs (hand, eye, is essential in order to establish the degree of lateralization homogeneity. The examinations and the calculation of the laterality index are to be done periodically, the results being recorded in a chart that reflects the evolution of lateralization as a result of engaging the child in various activities meant for a specific type of lateralization.

Keywords: cerebral hemispheric dominance, functional asymmetry, cortical level, peripheral level, lateralization, laterality index


DOI: 10.26744/rrttlc.2021.7.2.07

Published on line: 31/10/2021


Arseni, C., Golu, M., Dănăilă, l. (1983). Psihoneurologie. Bucureşti: Editura Academiei

Auzias, M. (1984). Enfants gauchers, enfants droiters. Une épreuve de lateralité usuelle. Paris: Delachaux et Niestle.

Benson, D.F., Zaidel, E. (1985). The dual brain: Hemispheric specialization in human. UCLA Forum in medical sciences, nr. 26. Guilford Press.

Bertelson, P., Mousty, P. (1991). La reconnaisance tactile des mots dans la lecture tactile.În: R. Kolinsky, J. Morais, J. Segui (coord.). La reconnaisance des mots dans les différentes modalités sensorielles: études de psycholinquistique cognitive. Paris: P.U.F.

Funnell, M.G., Corballis, P.M, Gazzaniga, M.S. (2000). Hemispheric interactions and specializations: Insights from the split brain. În: F. Bolber, J. Grofman, G. Rizzolatti (Eds.). Handbook of neuropsychology. Elsevier Science Publishers BV, p. 103-120.

Gazzaniga, M.S. (1995). Principles of human brain organization derived from split-brain studies. Neuron, 14, 2, p. 217-228.

Harris, A.J. (1961). Le manuel d’aplication des tests de lateralité.Paris: ECPA.

Hatwel, Y. (1986). Toucher l’espace. Lille: Presses Universitaire de Lille.

Hatwell, Streri, Gentaz (2000). Tucher pour connaître. Psychologie cognitive de la perception tactile manuelle. Paris: P.U.F.

Mousty, P., Bertelson, P., D’Alimonte, G. (1992). La lecture tactile: les mouvements des doigts dans la lecture du braille. În: P. Lecocq (Edit.). La lecture: processus, apprentissage, troubles. Lille: Presses Universitaire de Lille.

Oldfieldt, R.C. (1969). Handedness in musiciens. British Journal of Psychology, February, vol. 60, Issue 1, p. 91-99.

Pascual-Leone, A., Hamilton, R. (2001). The metamodal organization of the brain. Progress in Brain Research, 134, p. 427-445.

Portalier, S. (1992). Lecture du braille sur papier et sur plages tactile en braille éphémère. Le courrier de Suresnes, 56, p. 75-79.

Rauschecher, J.P. (1995). Compensatory plasticity and sensory substituton in the cerebral cortex. Trends in Neurosciences, 18 p. 36-43.

Rey, A. (1968, a). Epreuves visuo-spatiales. Neuchâtel: Delachaux et Niestlé.

Rey, A. (1968, b). Epreuves d’intelligence pratique et de psychomotricité, Neuchâtel, Delachaux et Niestlé.

Sperry, R.V. (1974). Lateral specialisation in the surgically separated hemispheress. În : F. Schmitt, F. Worden (Edit.). Neurosciences third study program. Cabridge M.A. : MIT. Press, p. 1-12.

Zazzo, R. (Coord., 1960). Manuel pour l’examen psychologique de l’enfant, Neuchâtel, Delachaux et Niestlé