Vacuum activity

Vacuum activities (or vacuum behaviours) are innate, fixed action patterns of animal behaviour that are performed in the absence of the external stimuli (releaser) that normally elicit them. This type of abnormal behaviour shows that a key stimulus is not always needed to produce an activity. Vacuum activities can be difficult to identify because it is necessary to determine whether any stimulus triggered the behaviour.

单词	Vacuum activity
释义	Vacuum activity 英语百科 Vacuum activity Vacuum activities (or vacuum behaviours) are innate, fixed action patterns of animal behaviour that are performed in the absence of the external stimuli (releaser) that normally elicit them. This type of abnormal behaviour shows that a key stimulus is not always needed to produce an activity. Vacuum activities can be difficult to identify because it is necessary to determine whether any stimulus triggered the behaviour.
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