Biomaterial Database

Hemispheric specialization for the processing of tactual stimuli in congenitally deaf and hearing children. 1982

F Vargha-Khadem

A group of congenitally deaf and a group of normal hearing children were given two dichhaptically presented tests of hemispheric specialization. Left hemisphere specialization for language was assessed by a letter sequences task and right hemisphere specialization for spatial stimuli was measured by the nonsense shapes test of Witelson (1974). The results showed a significant right tactual field superiority for the processing of tactually presented letter sequences. There were no significant differences between the tactual fields for the processing of tactually presented nonsense shapes. The pattern of lateralization demonstrated on the letter sequences task was consistent across both groups. However, groups differed significantly on the overall performance of the verbal task, with deaf subjects demonstrating lower accuracy scores compared to hearing subjects. Age and I.Q. factors produced significant differences between sub-groups on the nonsense shapes task.

UI	MeSH Term	Description	Entries
D007360	Intelligence	The ability to learn and to deal with new situations and to deal effectively with tasks involving abstractions.
D007839	Functional Laterality	Behavioral manifestations of cerebral dominance in which there is preferential use and superior functioning of either the left or the right side, as in the preferred use of the right hand or right foot.	Ambidexterity,Behavioral Laterality,Handedness,Laterality of Motor Control,Mirror Writing,Laterality, Behavioral,Laterality, Functional,Mirror Writings,Motor Control Laterality,Writing, Mirror,Writings, Mirror
D008297	Male		Males
D010153	Paired-Associate Learning	Learning in which the subject must respond with one word or syllable when presented with another word or syllable.	Learning, Paired-Associate,Learnings, Paired-Associate,Paired Associate Learning,Paired-Associate Learnings
D003638	Deafness	A general term for the complete loss of the ability to hear from both ears.	Deafness Permanent,Hearing Loss Permanent,Prelingual Deafness,Deaf Mutism,Deaf-Mutism,Deafness, Acquired,Hearing Loss, Complete,Hearing Loss, Extreme,Acquired Deafness,Complete Hearing Loss,Deafness, Prelingual,Extreme Hearing Loss,Permanent, Deafness,Permanent, Hearing Loss,Permanents, Deafness
D004292	Dominance, Cerebral	Dominance of one cerebral hemisphere over the other in cerebral functions.	Cerebral Dominance,Hemispheric Specialization,Dominances, Cerebral,Specialization, Hemispheric
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000367	Age Factors	Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.	Age Reporting,Age Factor,Factor, Age,Factors, Age