: The rat tells the same story.
The magnitude and effects from poor environmental quality can be studied using two human factors: homeostasis and alliesthesia
. By definition, homeostasis is the tendency of the body to seek and maintain a condition of balance or equilibrium within its internal environment, even when faced with external changes.
de, 2011, Revisiting an old hypothesis of human thermal perception: alliesthesia
, Building Research & Information 39(2): 108-117
(1984) Voluntary dehydration and alliesthesia
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.
On the mechanism of action of dexfenfluramine: effect on alliesthesia
and appetite motivation in lean and obese subjects.