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The observable response of a man or animal to a situation.


Behavior and Behavior Mechanisms

The observable response made to a situation and the unconscious processes underlying it.

Year introduced: 1998


Drug-Seeking Behavior

Activities performed to obtain licit or illicit substances.

Year introduced: 2011


Information Seeking Behavior

How information is gathered in personal, academic or work environments and the resources used.

Year introduced: 2010


Sedentary Behavior

Behaviors during waking hours that have low energy expenditure and are often performed in a sitting or reclining POSTURE.

Year introduced: 2019


Wandering Behavior

Moving oneself through space while confused or otherwise cognitively impaired. Patterns include akathisia, exhibiting neuroleptic-induced pacing and restlessness; exit seekers who are often newly admitted institution residents who try to open locked exit doors; self-stimulators who perform other activities such as turning doorknobs, in addition to continuous pacing; and modelers who shadow other pacers.

Year introduced: 2009


Illness Behavior

Coordinate set of non-specific behavioral responses to non-psychiatric illness. These may include loss of APPETITE or LIBIDO; disinterest in ACTIVITIES OF DAILY LIVING; or withdrawal from social interaction.

Year introduced: 2009


Tool Use Behavior

Modifying, carrying, or manipulating an item external to itself by an animal, before using it to effect a change on the environment or itself (from Beck, Animal Tool Behavior, 1980).

Year introduced: 2007


Reproductive Behavior

Human behavior or decision related to REPRODUCTION.

Year introduced: 2004


Risk Reduction Behavior

Reduction of high-risk choices and adoption of low-risk quantity and frequency alternatives.

Year introduced: 2003


Behavior Control

Manipulation of the behavior of persons or animals by biomedical, physical, psychological, or social means, including for nontherapeutic reasons.

Year introduced: 2003


REM Sleep Behavior Disorder

A disorder characterized by episodes of vigorous and often violent motor activity during REM sleep (SLEEP, REM). The affected individual may inflict self injury or harm others, and is difficult to awaken from this condition. Episodes are usually followed by a vivid recollection of a dream that is consistent with the aggressive behavior. This condition primarily affects adult males. (From Adams et al., Principles of Neurology, 6th ed, p393)

Year introduced: 2000


Attention Deficit and Disruptive Behavior Disorders

Includes two similar disorders: oppositional defiant disorder and CONDUCT DISORDERS. Symptoms occurring in children with these disorders include: defiance of authority figures, angry outbursts, and other antisocial behaviors.

Year introduced: 1998


Infant Behavior

Any observable response or action of a neonate or infant up through the age of 23 months.

Year introduced: 1995


Behavior, Addictive

The observable, measurable, and often pathological activity of an organism that portrays its inability to overcome a habit resulting in an insatiable craving for a substance or for performing certain acts. The addictive behavior includes the emotional and physical overdependence on the object of habit in increasing amount or frequency.

Year introduced: 1992


Self-Injurious Behavior

Behavior in which persons hurt or harm themselves without the motive of suicide or of sexual deviation.

Year introduced: 1992


Health Behavior

Combination of HEALTH KNOWLEDGE, ATTITUDES, PRACTICE which underlie actions taken by individuals regarding their health.

Year introduced: 1989


Verbal Behavior

Includes both producing and responding to words, either written or spoken.

Year introduced: 1966(1964)


Sucking Behavior

Any suction exerted by the mouth; response of the mammalian infant to draw milk from the breast. Includes sucking on inanimate objects. Not to be used for thumb sucking, which is indexed under fingersucking.

Year introduced: 1968(1965)


Stereotyped Behavior

Relatively invariant mode of behavior elicited or determined by a particular situation; may be verbal, postural, or expressive.

Year introduced: 1981(1973)

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