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Aggressive behavior problems.

B V Beaver
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Abstract

Accurate diagnosis of the cause of aggression in horses is essential to determining the appropriate course of action. The affective forms of aggression include fear-induced, pain-induced, intermale, dominance, protective, maternal, learned, and redirected aggressions. Non-affective aggression includes play and sex-related forms. Irritable aggression and hypertestosteronism in mares are medical problems, whereas genetic factors, brain dysfunction, and self-mutilation are also concerns.

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AffectAggressionAnimalsBehavior, AnimalDominance-SubordinationFearHorsesPlay and PlaythingsSexual Behavior, AnimalSocial EnvironmentJournal Article

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BibTeXRIS

B V Beaver. 1986. Aggressive behavior problems.. https://doi.org/10.1016/s0749-0739(17)30711-3

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PubMed1992

Neuropsychological functioning and sleep patterns in the elderly.

OBJECTIVE: To discover whether reported sleep-wake disturbances in the elderly (more frequent nocturnal awakenings, earlier waking and more day time naps) are associated with neuropsychological dysfunction. DESIGN AND SETTING: A sample of 124 residents of a retirement village complex were interviewed about their sleep patterns and given neuropsychological assessments. Reported sleep-wake difficulties were combined to form two variables, "night sleep" and "day sleep". Additional sleep variables analysed were reported sleep duration and time of wakening. Principal components analysis of the neuropsychological test scores yielded four factors: "general ability", "memory", "motor", and "cerebral efficiency". MAIN OUTCOME MEASURES: A correlation analysis was performed for sleep variables, neuropsychological factors and age, mood scale and scores on indices of participation in physical and passive activities. RESULTS: There was no correlation between "night sleep" and the factor scores derived from the neuropsychological tests. "Day sleep" was correlated with "cerebral efficiency" only. Age was correlated with the "memory" and "motor" factors, the latter also being associated with participation in physical activities. CONCLUSION: Night sleep problems are not associated with neuropsychological deficits in a non-clinic population.

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