ANTERIOR COMMUNICATING ARTERY SYNDROME (ACOA SYNDROME)

a syndrome arising as a consequence of rupture or aneurysm in the anterior communicating artery. This artery is small, located within the brain, and...

ANTHROPOMORPHISM

n. the attribution of human characteristics to nonhuman entities for example, animals, deities, plants, and objects. Although this cannot be empirically proven, it remains...

ANTICIPATORY ANXIETY

apprehension about an event prior to its occurrence. The apprehension occurs due to the expectation of a negative outcome - for example, death, danger,...

ANTIDROMIC CONDUCTION

the reversal of the direction a nerve impulse usually travels in (i.e., from axon to cell body). Sometimes produced for experimental purposes. Also known...

ANTIPREDATORY AGGRESSION

any type of attack behavior directed toward a potential predator in the aim of self-preservation. See animal aggression.

ANXIETY DISORDER DUE TO A GENERAL MEDICAL CON

significant anxiety (e.g., generalized anxiety, panic attacks, obsessions, and compulsions) that interferes with daily functioning, and is deemed to be caused directly by the...

ANXIOUS DEPRESSION

refers to a major depressive episode accompanied by high levels of anxiety and fear.

APHAKIA

n. a condition where the lens is missing from the eye, a condition that may either be congenital orarise as the result of disease,...

APOPATHETIC BEHAVIOR

behavior influenced and directed by the presence of other people - although not directed toward them. This may manifest in boasting about one's...

APPEARANCE-REALITY DISTINCTION

the implicit knowledge that the appearance of an object does not necessarily correspond to the reality. For example, a sponge shaped like a rock...

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