tyrosine

n. a nonessential amino acid present in most proteins. It is a precursor of the catecholamine neurotransmitters dopamine, norepinephrine, and epinephrine, which differ structurally only at one position of the molecule. Tyrosine is derived from the essential amino acid phenylalanine.

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Psychology term of the day

October 15th 2024

sorting test

a format for assessing the ability to conceptualize, often used in adult neuropsychological assessments or in determining a child’s level of cognitive development. The participant is asked to arrange an assortment of common objects by category. A common example is the Wisconsin Card Sorting Test.