Control of Motor Activity at the Thalamic Level of the Cat
A number of studies have convincingly shown that certain thalamic nuclei are somehow involved in the neural organization of motor behavior.The experimental analysis of complex motor mechanisms at the thalamic level seems to be important considering that co-ordinated complex locomotor patterns - resembling the normal motor activities of the animal - can be elicited by electrical stimulation only at the mesodiencephalic level (Waller, 1940; Hunter and Jasper, 1949; Hess, 1957; Doty, 1961; Koella, 1962; Delgado, 1964; Grastyán, Czopf, Ángyán and Szabó, 1965). In a series of previous experiments using electrical stimulation and different behavioral techniques, characteristic differences were found in the functioning of the anterior and posterior groups of nonspecific thalamic nuclei (Ángyán and Grastyán, 1965; Grastyán and Ángyán, 1967). The aim of the present study was to obtain further information about the role of thalamic nuclei especially in the initiation and performance of a complex locomotor task.
KeywordsCage Peri Ditioned
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- ÁNGYÁN, L. and E. GRASTYÁN (1965). Some electrical correlates of drive processes elicited from medial thalamic structures. Acta Physiol. hung. 26: 149–155.Google Scholar
- BUSER, P. (1966). Subcortical controls of pyramidal activity. In: The Thalamus, ed. D. P. Purpura and M. D. Jahr, pp. 323–347. New York: Columbia Univ. Press.Google Scholar
- DOTY, R.W. (1966). The role of subcortical structures in conditioned reflexes. Pavlovian Conference on Higher Nervous Activity. Ann.N.Y.Acad.Sci. 92:939–945.Google Scholar
- GRASTYÁN, E., J. CZOPF, L. ÁNgyÁN and I. SZABÓ (1965). The significance of subcortical motivational mechanisms in the organization of conditional connections. Acta Physiol.hung. 26: 9–46.Google Scholar
- GRASTYÁn, E. and L. ÁNGYÁN (1967). The organization of motivation at the thalamic level of the cat. Physiol. Behav. 2: 5–13.Google Scholar
- HESS, W.R. (1957). The functional organization of the diencephalon. New York, Grune and Stratton.Google Scholar
- HUNTER, J. and H. H. JASPER (1949). Effects of thalamic stimulation in unanaesthetized animals. Electroen. Neurophysiol. 1:305–324.Google Scholar
- WALLER, W.H. (1940). Progression movements elicited by subthalamic stimulation. J.Neurophysiol. 3: 300–307.Google Scholar