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An empirical clustering technique was applied to data obtained from 321 male and female alcoholics to identify homogeneous subtypes having discriminative and predictive validity. The clustering solution identified two "types" of alcoholics who differed consistently across 17 defining characteristics in the male and female samples. One group, designated type(More)
We performed a one-year follow-up study of 266 alcoholics who had received extensive psychiatric assessment, including diagnosis with the National Institute of Mental Health Diagnostic Interview Schedule and DSM-III criteria, during their index treatment episode. The aims were to evaluate the relationship between additional DSM-III diagnoses in alcoholics(More)
Adult mice were administered the common parasite Toxocara canis or lead or both. The parasite clearly altered mouse performance on tests of exploration, activity, learning, and motor coordination; behavioral effects in mice receiving lead alone were less general. Consequence of Toxocara administration appeared attenuated in animals receiving both agents.(More)
How lead ingestion during different developmental periods influences activity of mice was investigated. Binghamton Heterogenous Stock (HET) mice were assigned to one of four groups defined by a 2 X 2 factorial in which the only available drinking fluid was either lead (L) or water (C) from the time of mating to birth or from birth to the end of the(More)
Toxocara canis, the parasitic roundworm of the dog may infect aberrant hosts including mice and humans. The present study examined the behavioral and pathological changes at each of three postintubation periods (Period 1: 8-10 days, 2: 49-51 days, and 3: 84-86 days postintubation, respectively) in independent groups of mice intubated with 1000 eggs of T.(More)
Binghamton Heterogeneous stock mice intubated with embryonated eggs from the common parasite of dogs, Toxocara canis, display dramatic alterations in behavior. Many of these behavioral changes are markedly attenuated if mice are maintained also on a drinking solution containing lead acetate. The data presented here, however, show that the extensive neural(More)
Ingestion of palatable and unpalatable solutions was measured in adult mice in which had been administered the common parasite of the dog, Toxocara canis alone, or in combination with lead. In addition, response to hot plate and susceptibility to electroconvulsive seizure were also measured. Results from the palatability test indicated that either lead or(More)
Alcohol consumption, when corrected for body weight, was not related to age and did not differ from male and female alcoholics, when compared within subtype of alcoholism. Regardless of gender, alcoholics with antisocial personality diagnosis drank significantly more alcohol than non-antisocial personality alcoholics.
Endogenous (fasting) breath acetaldehyde levels were assessed as a discriminator between alcoholic and non-alcoholic subjects. The influence of smoking as a potential confounding variable on breath acetaldehyde was determined. Individuals with a history of smoking and/or drinking had higher endogenous breath acetaldehyde levels as compared to controls. Mean(More)
Mice, genetically selected for differences in brain weight were employed. Lead administration (0.5% lead acetate) from conception increased the proportion of 21 day old mice exhibiting seizures; total duration of observed seizures was also increased. Mice from the low brain weight line more frequently exhibited seizures than either mice from the high brain(More)