Mental retardation
The disorder of intelligence is a group of clinical syndromes that can have at least 3 impairments in memory, cognition (generalization, calculation, judgment, etc.), language, visual spatial function and personality. It is often caused by neurological, mental, and physical illnesses. The main symptoms include: ① memory impairment; ② thinking and judgment disorders; ③ personality changes; ④ affective disorders. The general clinical manifestations of congenital mental retardation (mental retardation), memory impairment (forgetting syndrome) and dementia are mainly described here.
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