State of internal activity of an organism that is a necessary condition for a given stimulus to elicit a class of response

concept

Drives and reinforcements : behavioral studies of hypothalamic functions / James Olds.

Trieblehre (mit Ausschluss der Perversionen) / Referent, E. Hitschmann.

Instincts and their vicissitudes / [Sigmund Freud].

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Works from the collections

Drives and reinforcements : behavioral studies of hypothalamic functions / James Olds.

Trieblehre (mit Ausschluss der Perversionen) / Referent, E. Hitschmann.

Instincts and their vicissitudes / [Sigmund Freud].