APPLIED RELAXATION
a technique in which anxious clients are taught, in a stepwise fashion, to relax more rapidly over a series of…
APPROACH GRADIENT
the variation in the strength of an organism's drive as a function of the overall proximity to the goal. For…
ARBORIZATION
n. a branching, treelike structure, as most commonly seen in the dendrites of a neuron.
ARCUATE NUCLEUS
1. an arc-shaped nucleus that is found in the hypothalamus, within the brain. 2. Also refers to any of various…
AROUSAL-PERFORMANCE RELATIONSHIP
the relationship between cognitive or physiological arousal (or both) and achievement on cognitive or physical tasks. Researchers suggest that too…
ARTERIOSCLEROSIS
n. literally, this means the hardening of the arteries. This is often a result of the deposition of plaques in…
ARTICULATORY SUPPRESSION
a method requiring the participant to perform a distracting verbal task, such as counting or naming, during the retention period…
ASCENDING PATHWAY 1
a connected route formed by nerve fibers intended to carry nerve impulses toward the brain from lower levels of the…
ASPARTATE AMINOTRANSFERASE
an enzyme thought to be involved in muscular dystrophy. Increased levels in the blood yield a clinical sign of this…
ASSESSMENT CENTER
an office or department in which participants have assessments administered to them - usually by a clinician. A variety of…
ASSOCIATION FIBER
a nerve fiber that transmits electrically charged impulses between different structures of the same cerebral hemisphere. Compare with commissural fiber.
ASSOCIATIVE LEARNING
a type of learning in which bonds are formed between varying element of the materials. In different learning theories, these…
ATHYREOSIS
n. a form of hypothyroidism, mostly found in children, whereby the thyroid gland has failed to develop normally. Affected children…
ATTACK BEHAVIOR
the use of force or violence against an adversary, usually with intent to harm, maim, or kill. Attack behavior often…