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Richardson, Stephen A.; And Others – American Journal of Mental Deficiency, 1985
Describes measure of atypical appearance derived during the course of a study of 22-year-old mentally retarded adults. Hypotheses about relationships between mental retardation, biological damage, and appearance were tested and confirmed. Atypical appearance increased with severity of retardation. Mildly retarded young adults who received no…
Descriptors: Mental Retardation, Physical Characteristics, Young Adults
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Engel, Eric – American Journal of Mental Deficiency, 1972
A cytogeneticist discusses the hypothesized connection between XYY chromosome makeup and characteristics of aggressiveness, proneness to violence, and tallness in relation to the case of a man who murdered eight women in a Chicago apartment. (GW)
Descriptors: Aggression, Criminals, Emotional Disturbances, Genetics
Peer reviewed Peer reviewed
Rogers, R. Curtis; Simensen, Richard J. – American Journal of Mental Deficiency, 1987
The article describes physical, intellectual, and psychological characteristics of members of 29 families (N=129) affected either directly or as carriers of fragile X syndrome (a form of mental retardation). Little correlation was found between tested intellect and frequency of fragile sites on the chromosome. (Author/JW)
Descriptors: Adolescents, Children, Etiology, Intelligence Quotient
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de la Cruz, Felix F. – American Journal of Mental Deficiency, 1985
Physical, psychological, and cytogenic characteristics of individuals with the Fragile X syndrome are reviewed. Prospects for therapy with folic acid, prenatal diagnosis, phenotype of heterozygote for the marker X, and unresolved issues about the syndrome are discussed. (CL)
Descriptors: Clinical Diagnosis, Congenital Impairments, Genetics, Mental Retardation
Peer reviewed Peer reviewed
Dicker, Lois – American Journal of Mental Deficiency, 1972
Descriptors: Anatomy, Downs Syndrome, Drafting, Exceptional Child Research
Peer reviewed Peer reviewed
And Others; Qazi, Qutub H. – American Journal of Mental Deficiency, 1977
Descriptors: Asian Americans, Blacks, Downs Syndrome, Drafting
Peer reviewed Peer reviewed
Ross, Michael B.; Salvia, John – American Journal of Mental Deficiency, 1975
Descriptors: Elementary Education, Exceptional Child Research, Handicapped Children, Physical Characteristics