nystagmus

n. involuntary, rapid movement of the eyeballs. The eyeball motion may be rotatory, horizontal, vertical, or a mixture. See also physiological nystagmus; vestibular nystagmus.

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Psychology term of the day

February 23rd 2025

internal frustration

in classical psychoanalytic theory, denial of gratification of instinctual impulses due to internal factors (e.g., the superego), as opposed to external factors.