Head (Head), Sir Henry

(4.8.1861, London - 8/10/1940) - English neurologist and neuropsychologist, one of the largest early 20 century. Student English neurologist mid 19 th century X. Jackson. Secondary education in a charity school (Charterhouse), . then studied at the University of Halle, . at Trinity College, Cambridge (1880-1884, . Master of Arts, . 1884; Ph.D., . 1892), . at the German University of Prague and Strasbourg (Ph.D.),
. Doctorate in law at Edinburgh defended. Since 1901. worked as a teacher at the Royal College of Physicians in 1921. - The Royal Society. Editor of the journal 'Brain' (1904-1920). Head was one of those researchers neuropsychological problems that denied the postulates narrow lokalizatsionizma in determining the substrate of higher mental functions. Developed the ideas of his teacher that mental functions are represented in the brain of the level of the principle of the organization, where each level is responsible for any component of this function. In experiments on cutting the peripheral nerve, set for himself, Head showed that the sensitivity due to the regeneration of the afferent fibers is returned sequentially in two stages. In accordance with these stages Head distinguish two types of sensitivity: protopathic, . more primitive and affective, . having a center in the thalamus, . and epikriticheskuyu, . more objectified and differentiated, . having cortical center ( 'An Human Experiment in Nerve Division', . 'Brain', . 1908, . V,
. 29 (Joint. with Rivers W.)). At a large clinical material, . which is collected using a monographic analysis of individual cases, . Head showed, . that in aphasia violated all behavior in general, . and this is determined by the difficulties of concept, . in which a person becomes dependent on the perceived field ( 'Aphasia and Kindred Disorders of Speech', . Vol,
. 1-2, Cambr., 1928). Studying the problem of aphasia, data-centric linguistic analysis and came to the allocation of its various forms: the nominative, syntactic and semantic, because of excessive straightness of these findings was subjected to fair criticism. Developed a neurological procedure - 'sample Heda', when the patient must repeat the position of the hands of a doctor. Literature.