catecholamine

n. any of a class of biogenic amines formed by a catechol molecule and an amine group. Derived from tyrosine, catecholamines include dopamine, epinephrine, and norepinephrine, which are the predominant neurotransmitters in the sympathetic nervous system.

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Psychology term of the day

December 19th 2024

Bekhterev’s nystagmus

a form of nystagmus that develops after the loss of a second labyrinth. Nystagmus occurs after the destruction of the first of the two labyrinths but eventually subsides, only to recur as a compensatory effect after loss of the second labyrinth. Also called compensatory nystagmus. [Vladimir M. Bekhterev]