alliesthesia

alliesthesia

A subjective response to an external stimulus that reflects the internal “homeostasis”. Any stimulus capable of ameliorating the internal homeostasis will be perceived as pleasant; any stimulus that alters the internal homeostasis would be perceived as unpleasant or painful.

alliesthesia

(al″ē-es-thē′zh(ē-)ă)
The perception of an external stimulus as pleasant or unpleasant, depending upon internal stimuli. A stimulus may be perceived as pleasant at one time and unpleasant at another.
References in periodicals archive ?
Alliesthesia can be defined as the change to a sensory experience that can be perceived as positive or negative.
de, 2011, Revisiting an old hypothesis of human thermal perception: alliesthesia, Building Research & Information 39(2): 108-117
The authors note that these patterns incorporate aspects of three existing theories in reward/aversion- prospect theory, which includes the fact that people are more strongly motivated to avoid negative outcomes than to attain positive outcomes; the matching law, which describes how the rates of response to multiple stimuli are proportional to the amount of reward attributed to each stimulus; and alliesthesia, which notes that the value placed on something depends on whether it is perceived to be scarce - for example, hungry people place greater value on food than do those who have just eaten.