biogenic amine

any of a group of amines that affect bodily processes and nervous system functioning. Biogenic amines are divided into subgroups (e.g., catecholamines, indoleamines) and include the neurotransmitters dopamine, epinephrine, histamine, norepinephrine, and serotonin.

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Psychology term of the day

November 16th 2024

Delboeuf illusion

a size contrast illusion in which a larger enclosing circle influences the perceived size of a smaller enclosed circle. If the two circles are of similar sizes, the perceived size of the inner circle will be increased. If the size of the enclosing circle is significantly larger, then the perceived size of the inner circle will be decreased. [Joseph-Rémi-Léopold Delboeuf]