visual field defect

a reduction in the normal extent of the visual field, characterized by partial or total blindness. This is caused by an interruption in the flow of visual impulses between the retina and the visual cortex, which may be caused by a lesion before, after, or in the optic chiasm or in all or a part of the optic radiations; it can involve tracts of one or both eyes. Each possible lesion produces a different defect.

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Psychology term of the day

February 24th 2025

Jocasta complex

in psychoanalytic theory, an abnormally close or incestuous attachment of a mother to her son. It is named for Jocasta, the mother and wife of Oedipus in Greek mythology. Compare Oedipus complex.