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Biomedical subjects

I Maltzman

Publications and source records attributed to I Maltzman.

At least 37 records · Page 2Linked to original sources
PubMed1975

Psychophysiology of sociopathy: electrocortical measures.

The CNV, visual AEP and resting EEG were analyzed in sociopaths and controls matched for age and sex. Twenty-seven male sociopaths were selected by psychiatric interview and special rating scale, restricted to Shipley-Hartford IQs of 115-145 and separated into young (x = 20.5 yr) and older (x = 35.3 yr) age groups. Subjects participated in forewarned reaction-time tasks in which the imperative stimulus was either an innocuous or noxious tone that the subject escaped by pressing a response key. Sociopaths and controls did not differ in reaction time, vertex and occipital AEP amplitude or latency, and power spectral density of the EEG. Contrary to previous findings, there also were no significant differences between sociopaths and controls in overall CNV amplitude or topography. However, while most controls showed increased CNV amplitude in the noxious tone condition as compared to the innocuous tone condition, older sociopaths showed no change, or decreased amplitudes.

Acoustic Stimulation↗
PubMedDate not supplied

Smoking, personality, and imagery preference in relation to spontaneous bilateral electrodermal activity.

Effects of smoking on spontaneous bilateral skin conductance were studied as a consequence of interactions with set and setting. Bilateral skin conductance was recorded in six men and six women who smoked and an equal number of nonsmokers on two different days. On the first day, spontaneous electrodermal activity was recorded before and after a 10-minute rest period during which half the smokers smoked a cigarette. On the second day, one week later, spontaneous activity was again recorded before and after a 10-minute rest period during which the remaining smokers smoked a cigarette. Nonsmokers did not smoke at any time. Following smoking there was a significant negative correlation between a preference for visual over nonvisual imagery and spontaneous skin conductance responsivity in the left as compared to the right hand. Correlations were significantly different in smokers and nonsmokers. Smokers showed significantly greater preferences for either visual or nonvisual imagery than nonsmokers. Nonresponding nonsmokers were higher on the psychoticism (P) scale of the Eysenck Personality Questionnaire (EPQ) than responding nonsmokers. Smokers scored higher on P than nonsmokers. Interactions between personality, cognitive style, and the experimental situation, set, and setting were discussed in relation to the arousing effects of nicotine.

Adolescent↗
PubMedDate not supplied

Is alcoholism a disease? A critical review of a controversy.

Commentators have repeatedly attacked the traditional view that alcoholism is a disease. Their arguments that alcoholism is a central aspect of life, a deviant life style, or a form of learned behavior are examined in the light of the history and philosophy of medicine as well as current bio-behavioral research. Our conclusion is that alcoholism, as a lawful pattern of observable signs and symptoms that deviate significantly from a norm of health, is a bio-psychosocial disease.

Alcohol Drinking↗
PubMedDate not supplied

Locus of semantic generalization of the galvanic skin response and possible inhibitory influence of conditional stimuli upon unconditional response following conditioning with innocuous and noxious unconditional stimuli.

Two different problems were investigated using the GSR index of the orienting reflex (OR): 1) the locus of semantic generalization; and 2) a possible inhibitory influence of the CS upon the UCR. Two experiments were conducted. One experiment employed an innocuous USC, and a second similar experiment used a loud noise as the UCS. Unidirectional word associates were employed in the test of the direction of semantic generalization. Constant and varying CS words were used to test the possible inhibitory influence of the CS upon the UCR. Evidence was obtained of semantic generalization occurring in the training and in the test situation. There was no evidence of the CS developing inhibition over the UCR. Theoretical interpretation of both phenomena were considered. The need for developing theories of conditioning of the OR in humans was emphasized in contrast to current efforts to apply inappropriate cognitive animals learning theories which fail to consider biologic constraints.

Adult↗
PubMedDate not supplied

The OR and significance.

A brief review was conducted of past and current research and theory as well as future implications of the problem of significance and the OR. Research and theory in the field is judged to be at a choice point: advance to interesting and important problems integrated with biobehavioral research or enter a blind alley of pseudo-problems derived from computer metaphors and cognitive folk psychology.

Animals↗