ANIMAL ESCAPE BEHAVIOR
strategies an animal may use in order to escape aversive environmental stimuli - for example, noxious food, predators, or a…
ANIMAL TOOL USE
the use of extraneous or external materials by animals, solely for the purposes of solving problems. Until recently, the use…
ANOMALOPIA
a condition characterized by abnormal and anomalous color vision. See also achromatism- color blindness- anomalopia.
ANOREXIA NERVOSA
an eating disorder, which occurs frequently in adolescent girls, involving the refusal of food, a drive for thinness, perceptual disturbances…
ANTAGONISTIC MUSCLES
pairs or groups of muscles that work to oppose each other - thus allowing flexible movement. For example, the biceps…
ANTHROPOGENESIS
n. a scientific study paradigm relating to the study of human origins and development. Also known as anthropogeny.
ANTICHOLINERGIC EFFECTS
side effects of taking anticholinergic drugs, but may also be characteristic of other agents. Examples include tricyclic antidepressants, that may…
ANTICIPATORY SCHEMA
in the perceptual cycle hypothesis, a structured body of knowledge (a pre-understanding) that shapes the expectations of a person in…
ANTIVIRAL DRUGS
substances that interfere with or corrupt the normal functioning of viruses. These substances may act by blocking host-cell enzyme systems,…
ANXIETY SCALE
any of a plethora of tests designed to measure manifest, subjective anxiety - as opposed to assessing hidden or unconscious…
APPARENT DISTANCE
the perceived distance of a specific object from a designated observer. The visual angle subtended by the image of the…
APPETITIVE STIMULUS
In positive reinforcement (see positive reinforcement) this represents an unconditioned stimulus that an organism will approach. The effectiveness of this…
APPREHENSION-SPAN TEST
a test in which participants report an experience of briefly presented items (e.g., letters or objects). The whole report task…
APRAXIC AGRAPHIA, GRAPHOPATHOLOGY
n. the interpretation of handwriting in order to determine the presence of personality disorders. Also known as grapho-analysis.