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Excessive avoidance has been suggested to contribute to anxiety disorders, leading psychologists and neuroscientists to study how avoidance behaviors are learned using rat or mouse models. [1] Avoidance learning is a type of operant conditioning (also known as instrumental conditioning).
An avoidance response is a response that prevents an aversive stimulus from occurring. It is a kind of negative reinforcement . An avoidance response is a behavior based on the concept that animals will avoid performing behaviors that result in an aversive outcome.
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Methodologically, a "Sidman avoidance procedure" [10] is an experiment in which the subject is periodically presented with an aversive stimulus, such as the introduction of carbon dioxide or an electric shock, unless they engage in a particular response, such as pulling a plunger, which delays the stimulus by a certain amount of time.
In free-operant avoidance a subject periodically receives an aversive stimulus (often an electric shock) unless an operant response is made; the response delays the onset of the shock. In this situation, unlike discriminated avoidance, no prior stimulus signals the shock. Two crucial time intervals determine the rate of avoidance learning.
Distress is an inextricable part of life; therefore, avoidance is often only a temporary solution. Avoidance reinforces the notion that discomfort, distress and anxiety are bad, or dangerous. Sustaining avoidance often requires effort and energy. Avoidance limits one's focus at the expense of fully experiencing what is going on in the present.
The mating strategies of both sexes can be simplified into different psychological adaptations. There is extensive evidence that incest avoidance, which is the tendency to avoid sexual intercourse with close relatives is an evolved behavioural adaptation. [1] Incest avoidance can be seen cross-culturally in humans, and is evident in wild animals.
Avoidance coping is measured via a self-reported questionnaire. Initially, the Multidimensional Experiential Avoidance Questionnaire (MEAQ) was used, which is a 62-item questionnaire that assesses experiential avoidance, and thus avoidance coping, by measuring how many avoidant behaviors a person exhibits and how strongly they agree with each statement on a scale of 1–6. [1]