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He wrote a number of influential textbooks, and was important in the development of the theory of instinct and of social psychology in the English-speaking world. McDougall was an opponent of behaviourism and stands somewhat outside the mainstream of the development of Anglo-American psychological thought in the first half of the 20th century ...
The ranges of instincts are in great numbers. Freud expressed them in two categories. One is Eros the self-preserving life instinct containing all erotic pleasures. While Eros is used for basic survival, the living instinct alone cannot explain all behavior according to Freud. [8] In contrast, Thanatos is the death instinct.
In psychology, a drive theory, theory of drives or drive doctrine [1] is a theory that attempts to analyze, classify or define the psychological drives. A drive is an instinctual need that has the power of influencing the behavior of an individual; [2] an "excitatory state produced by a homeostatic disturbance".
Theories of motivation are conceptual frameworks that seek to explain motivational phenomena. Content theories aim to describe which internal factors motivate people and which goals they commonly follow. Examples are the hierarchy of needs, the two-factor theory, and the learned needs theory.
Instinct is the inherent inclination of a living organism towards a particular complex behaviour, containing innate (inborn) elements.The simplest example of an instinctive behaviour is a fixed action pattern (FAP), in which a very short to medium length sequence of actions, without variation, are carried out in response to a corresponding clearly defined stimulus.
Drive reduction theory, developed by Clark Hull in 1943, is a major theory of motivation in the behaviorist learning theory tradition. [1] "Drive" is defined as motivation that arises due to a psychological or physiological need. [2] It works as an internal stimulus that motivates an individual to sate the drive. [3]
The standard edition of Freud's works in English confuses two terms that are different in German, Instinkt (instinct) and Trieb (drive), often translating both as instinct; for example, "the hypothesis of a death instinct, the task of which is to lead organic life back into the inanimate state". [10] "
Another example of a behavior that has been described as a fixed action pattern is the egg-retrieval behavior of the greylag goose, reported in classic studies by Niko Tinbergen and Konrad Lorenz. [5] Like many ground-nesting birds, if an egg becomes displaced from the nest, the greylag rolls it back to the nest with its beak.