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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.
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.
Each successful avoidance response delays the presentation of the aversive stimulus by resetting the timer to zero. This method is also referred to as free operant avoidance conditioning. [7] These experiments were pivotal in demonstrating the learning process in the absence of a warning signal before the aversive stimulus.
But, when crabs with the same level of behaviour are matched, shocked crabs still have a stronger stress response compared with controls. The authors suggested that their findings, coupled with previous findings of long-term motivational change and avoidance learning, "fulfils the criteria expected of a pain experience". [5]
The 62-item Multidimensional Experiential Avoidance Questionnaire (MEAQ) [25] was developed to measure different aspects of EA. The Brief Experiential Avoidance Questionnaire (BEAQ) is a 15-item measure developed using MEAQ items, which has become the most widely used measure of experiential avoidance. [26]
[4] [5] The proposed fear (FFFS) subscale is associated with avoidance behaviors (example item: 'If approached by a suspicious stranger, I run away') while the anxiety (BIS) subscale includes social situations wherein reward and punishment stimuli result in conflict between approach and avoidance motivations (example item: 'I prefer to work on ...
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]