Dictionary > Hypothalamic theory

Hypothalamic theory

A theory on emotion formulated by Walter Cannon in 1929 which states that the diencephalon, consisting of hypothalamus and thalamus, serves as the center of emotional expression whereas the cerebral cortex is the center of emotional experience. According to this theory, nerve impulses from sensory nerves reach and trigger the thalamus to interpret and send impulses to the cerebral cortex so that the emotion is experienced. Simultaneously, it also sends impulses to the autonomic system to cause physiological changes in the viscera and muscles so that the behaviour specific to this emotion is expressed.
Historically, this theory is formulated by Walter Cannon as an argument to the theory of William James on emotion (called Body Reaction theory).
The fight-or-flight response in animals is implicated in this theory where it assumes that an animal facing a stimulus of threat experiences independent but simultaneous reactions, such as the psychological awareness of the emotion in the brain, and the physiological changes triggered by the autonomic nervous system, (which altogether preparing the animal to respond – either to fight or flee – in threatening situations).

  • Emergency theory
  • Cannon’s theory

Compare: Body Reaction theory
See also: fight-or-flight response

You will also like...

Lights' Effect on Growth
Lights’ Effect on Growth

This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..

Adaptation Tutorial
Adaptation Tutorial

Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..

human respiratory system

The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..

Kidneys and Regulation of Water and Inorganic Ions

The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..

Evolution of Life - Ancient Earth
Evolution of Life – Ancient Earth

Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..

Community Patterns

Learn about community patterns and the ecological factors influencing these patterns. Revisit some of the ecosystems you..