Alliesthesia

The Alliästhesie (. .. Changed Greek αλλιώς ( Allios ) and αἴσθησις ( AISTHESIS ) - sensation, perception, syn Alliesthesie closely alliesthesia, fr alliesthésie ) describes the dependence of the sensation of pleasure ( plaisir fr. ) or aversion / dislike ( fr. déplaisîr ) the consumption of a stimulus from the " internal milieu" ( fr. internal milieu ) of the organism. Thus, a stimulus that can improve the state of the internal environment is perceived as pleasant. A stimulus that affects the internal environment of the organism, however, is perceived as unpleasant or even painful. Triggered sensation is not alone depending on the quality or intensity of the stimuli, but by internal receptors, and in any case subjective.

The Alliästhesie is a physiological phenomenon and is not to be confused with pathological symptom of Allästhesie. A related phenomenon is the Alliästhesie the "sensory -specific satiety " (translated as " sinnes - specific saturation ").

Types of Alliästhesie

  • Thermal Alliästhesie: Alliästhesie of temperature sensation (cold, heat ) - it contributes significantly to homeostatic thermoregulation
  • Olfactory or Geruchsalliästhesie: Alliästhesie of smell
  • Gustatory or Geschmacksalliästhesie: Alliästhesie the basic tastes ( sweet, salty, sour, bitter, umami and " calcium " )
  • Olfactory - gustatory or Nahrungsalliästhesie: Alliästhesie the complex tastes
  • Visual / optical Alliästhesie: Alliästhesie of seeing
  • Auditory Alliästhesie: Alliästhesie of hearing

Each of these types can be found in the following two tendencies:

  • Negative Alliästhesie: Change in sensation of pleasure by aversion
  • Positive Alliästhesie: changing the perception of distaste for pleasure

Discovery

As a describer of Alliästhesie applies the French physiologist Michel Cabanac sense. The first publication of 1968 in a trade journal followed over 40 other publications in international scientific journals, including in international journals: 1970 in nature and in 1971 in Science. The name was, as mentioned in the first publication in the appendix, selected in collaboration with the Greek -born co-author Stylianos Nicolaïdis.

The Alliästhesie was originally discovered by experiments on humans, and (Rattus norvegicus) later confirmed in the rat.

Swell

  • Nutrition
  • Sensory Physiology
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