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ANOREXIA INIRABILIS

A culture-bound medieval European syndrome, characterized by the restriction of caloric intake due to piety and religious devotion. Also known

ANTAGONISTIC COLORS

colors appearing on opposing sides of the color circle. For example, blue and yellow. Also known as complementary colors.

ANTHROPOCENTRISM

n. the assumption that the human experience is the central reality - and the idea that all animal and living

ANTICHOLINERGIC DRUGS

A subclass of drugs that inhibit or interfere with the release of acetyl choline, a neurotransmitter. This interferes with nerve

ANTICIPATORY RESPONSE

a response that occurs prior to the evoking stimulus being presented.

ANTINOCICEPTIVE

describes or relates to any unique factor that increases tolerance for, or reduces sensitivity to, a dangerous or harmful stimuli,

ANTITUSSIVES

n. Medicines or drugs that suppress coughing by interacting with the cough-control center in the medulla oblongata. The cough center

ANXIETY REACTION

an intense emotional response to a stimulus, characterized by marked apprehension and accompanied by somatic symptoms of tension in the

APATHETIC HYPERTHYROIDISM

a condition commonly associated with thyrotoxicosis. In contrast to other hyper-thyroid conditions, this condition is usually characterized by lethargy or

APNEA (APNOEA)

n. temporary suspension or arrest of respiration. If the arrest lasts for a long time, the heart may be slowed

APPARENT

1. illusory, as in with modesty. 2. in physics, may be used in denoting an observed state that is not

APPETITIVE CONDITIONING

a type of Pavlovian or classical conditioning in which the unconditioned stimulus is a positive reinforcer that plays to the

APPREHENSION SPAN

the number of items an individual can verbally report following a single glance at an array of items. Typically, the

APRAXIA OF SPEECH

refers to a speech-articulation disorder that occurs due to lack of coordination between the muscles needed for speaking. This occurs

ARAGO PHENOMENON

refers to an impaired sensitivity to light that exists in the center of the visual field when light conditions are

ARCHITECTURAL PSYCHOLOGY

the study of the implications of a built environment on human behavior. This represents a major subtopic in environmental psychology.

ARGUMENT QUALITY

the degree to which an argument elicits primarily positive evaluative responses toward the attitude and deemphasizes primarily negative ones. The

ARMORING

n. an effective and natural defense mechanism used to distance oneself by withholding the expression of emotion. This can be

AROUSAL THEORY

1. the theory that the physical environment can affect arousal levels by stimulating brain-based mechanisms. Stress and arousal are created

ARTANE

n. a common trade name for trihexyphenidyl.