stenosis of aqueduct of Sylvius

a hereditary or familial disorder, transmitted as an X-linked recessive gene, marked by massive head enlargement at birth and hydrocephalus due to narrowing of the cerebral aqueduct (aqueduct of Silvius). In some cases, the disorder develops insidiously after adulthood rather than as a congenital condition.

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Psychology term of the day

December 25th 2024

motor aphasia

a form of nonfluent aphasia characterized by difficulty in producing articulate speech. An example is Broca’s aphasia, for which motor aphasia is often used as a synonym. See also aphemia.