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Full-Text Articles in Medicine and Health Sciences

Conduct Disorder And Cognitive Functioning: Testing Three Causal Hypotheses, Irvin Sam Schonfeld, David Shaffer, Patricia O'Connor, Stephanie Portnoy Jan 1988

Conduct Disorder And Cognitive Functioning: Testing Three Causal Hypotheses, Irvin Sam Schonfeld, David Shaffer, Patricia O'Connor, Stephanie Portnoy

Publications and Research

Studied the relation between cognitive functioning, as evidenced by IQ and achievement test performance, and Diagnostic and Statistical Manual of Mental Disorders (DSM-III) categories of conduct disturbance, using data from Black adolescents who were members of collaborative perinatal project from birth to age 7 yrs. At age 17 yrs, Ss and their parents were administered a battery of instruments that included standardized psychiatric diagnostic interviews as part of a call-back study. Analyses were compatible with the hypothesis that deficiencies in cognitive functioning are causally related to adolescent conduct disorder as defined by DSM—III. Results suggest that the relation of cognitive …


Early Soft Signs And Later Psychopathology, David Shaffer, Cornelius Stokman, Patricia A. O'Connor, Stephen Shafer, Joseph E. Barmack, Suzanne Hess, D. Spalten, Irvin Sam Schonfeld Jan 1986

Early Soft Signs And Later Psychopathology, David Shaffer, Cornelius Stokman, Patricia A. O'Connor, Stephen Shafer, Joseph E. Barmack, Suzanne Hess, D. Spalten, Irvin Sam Schonfeld

Publications and Research

At age 17 two motor signs, mirror movements and dysdiadochokinesis, were found in more than half the subjects known to have had the respective signs at age 7. These rates were significantly higher than rates found within the group of subjects who were sign free at age 7.


Neurological Soft Signs: Their Relationship To Psychiatric Disorder And Iq In Childhood And Adolescence, David Shaffer, Irvin Sam Schonfeld, Patricia A. O'Connor, Cornelius Stokman, Paul Trautman, Stephen Shafer, Stephen Ng Jan 1986

Neurological Soft Signs: Their Relationship To Psychiatric Disorder And Iq In Childhood And Adolescence, David Shaffer, Irvin Sam Schonfeld, Patricia A. O'Connor, Cornelius Stokman, Paul Trautman, Stephen Shafer, Stephen Ng

Publications and Research

Defines a neurological soft sign (NSS) as a particular form of deviant performance on a motor or sensory test in a neurological status examination. In the present study, 63 male and 26 female 17-yr-olds who had NSSs at 7 yrs of age were compared with sex- and age-matched controls with no NSSs at age 7 yrs. Data obtained on Ss included behavioral and neurological examination at age 7 yrs and psychiatric, neurologic, and IQ (e.g., WAIS) assessment at adolescence. All 6 females and 12 of the 15 males with an anxiety-withdrawal diagnosis and 13 of the 20 males with an …


The Genevan And Cattell-Horn Conceptions Of Intelligence Compared: The Early Implementation Of Numerical Solution Aids, Irvin Sam Schonfeld Jan 1986

The Genevan And Cattell-Horn Conceptions Of Intelligence Compared: The Early Implementation Of Numerical Solution Aids, Irvin Sam Schonfeld

Publications and Research

The Genevan and Cattell-Horn theories of intelligence are compared. The theories are found to be similar in the following respects: Intelligence (operative intelligence and fluid ability) is conceptualized as adaptational in function; the products of everyday learning and crystallized skills reflect the impress of experience; one category of intelligence (operative intelligence, fluid ability) is conceptualized as prior or more fundamental than the other (learned products, crystallized skills). Important differences were also found: Whereas fluid ability is characterized as formless and fixed, operative intelligence is viewed as highly structured and evolving; a compensatory relation between noegenetic crystallized skills and fluid ability …


Critical Note On The Usefulness Of Attention Deficit As A Clinical Syndrome, David Shaffer, Irvin Sam Schonfeld Jan 1984

Critical Note On The Usefulness Of Attention Deficit As A Clinical Syndrome, David Shaffer, Irvin Sam Schonfeld

Publications and Research

Parental ratings of overactivity are unrelated to teachers' ratings of overactivity or to laboratory measures of inattention. Teachers' ratings of overactivity correlate strongly with teachers' ratings of inattention as well as to laboratory measures of inattention. Teachers' ratings of inattention, however, are unrelated to laboratory measures of inattention when IQ is controlled. There are considerable definitional problems relating to the symptoms of hyperactivity and inattention, making it difficult create a behavioral definition of the psychiatric syndrome of attention deficit disorder.