Knowledge of Other Animals Kin Relations

East African vervet monkeys (Cercopithecus aethiops) live in groups of 10 to 30 individuals. Each group occupies a territory that is surrounded by the territories of other vervet groups. A typical group contains three to seven adult males, together with five to eight adult females and their offspring. When 3'oung males reach adult size at approximately five to six years of age, they emigrate to a neighboring group. Females remain in the group where they were born throughout their lives and form...

Chunking in Human and Animal Memory

To survive and reproduce successfully, nonhuman primates must be able to predict the behavior of others. Predicting other animals' behavior demands, in turn, that individuals memorize information about all of the dyadic and triadic relations in their group. And, as already noted, memory loads will be enormous in species with large social groups because increases in group size lead to an explosive increase in the number of dyads and triads. Faced with the problem of remembering long strings of...

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Positive Mood (Profile of Mood Stale Elation-Depression) Euphoria (morphone benzedrine group Addiction Research Center Inventory) Figure 5. Individual differences among women in strength and valence of psychological responses to androstadienone. In addition to the vomeronasal organ, the vomeronasal system has another half the nasopalatine duct. In many vertebrates, the nasopalatine duct passes from the mouth to the nose through the incisive canal, providing direct communication between the oral...

References

Sexual selection. Princeton nj Princeton University Press. Angell, J. R. (1907). The province of functional psychology. Psychological Review> , 14,61-71. Baker, R. R., & Bellis, M. A. (1995). Human sperm competition Copulation, masturbation, and infidelity. London Chapman & Hall. Bellis, M. A., & Baker, R. R. (1990). Do females promote sperm competition Data for humans. Animal Behaviour, 40, 997-999. Burley, N. (1986). Sexual selection for aesthetic traits in...

Vasana A New Class of Social Chemosignals

Clearly, we need a term describing those social chemosignals that are neither odors nor pheromones. That is, chemosignals that are not consciously detectable as odors (at least verbally), do affect psychological state, and yet do not trigger a unique set of behavioral, neural, or endocrine responses that are necessary to fulfill the definition of a pheromone. Such social chemosignals are remarkably similar to the medieval Sanskrit term vasanas. Vasana, the singular noun, is derived from the...

Odors Pheromones or Vasanas

Although the full extent of the impact of odors on psychological state is still largely unexplored scientifically, there is evidence that odors do affect human psychological states and behavior, presumably acting through the main olfactor) pathwa . The hedonic qualities of odors in everyday life are commonly recognized and inescapable, and scientific evidence is growing. For example, people living within smelling distance of a pig farm experience depressed mood significantly more often than...