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Irritability is an excessive response to stimuli. Irritability takes many forms, from the contraction of a unicellular organism when touched, to complex reactions involving all the senses of higher animals. In plants, response is usually different from that seen in animals, but is nonetheless present. The term irritability is used for both the physiological reaction to stimuli and for the pathological, abnormal or excessive sensitivity to stimuli.
Additional recommended knowledge
Irritability may manifest in behavioral responses to both physiological as well as behavioral stimuli, including environmental, situational, sociological, and emotional stimuli.
Irritability can result from conditions such as:
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|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Irritability". A list of authors is available in Wikipedia.|