stepdown test

a memory test used in studies of shock-avoidance learning in rats and mice. When the animal first steps down from an elevated platform in the test chamber, it receives a brief foot shock. On subsequent test trials, the animal is usually much slower to step down, indicating its memory for the shock experience; a lack of hesitation in stepping down on postshock trials is considered a sign of cognitive impairment. Also called stepdown avoidance.

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

November 19th 2024

psychopathology

1. the scientific study of mental disorders, including their theoretical underpinnings, etiology, progression, symptomatology, diagnosis, and treatment. This broad discipline draws on research from numerous areas, such as psychology, biochemistry, pharmacology, psychiatry, neurology, and endocrinology. The term in this sense is sometimes used synonymously with abnormal psychology.

2. the behavioral or cognitive manifestations of such disorders. The term in this sense is sometimes considered synonymous with mental disorder itself. —psychopathological adj. —psychopathologist n.