temporal lobe

Pathology: Lesions, clinical manifestations: 1) unilateral disease of dominant temporal lobe - upper homonymous quadrantanopia - Wernicke's aphasia - impairment in tests of verbal material presented through auditory cues - dysnomia or amnestic aphasia - amusia (inability to name musical scores & to read & write music) 2) unilateral disease of non-dominant temporal lobe - upper homonymous quadrantanopia - inability to judge spatial relationships in rare cases - impairment in tests of nonverbal visually presented material - inability to recognize melodies & other nonlexical qualities of music 3) disease in either temporal lobe - auditory illusions & hallucinations - psychotic behavior (aggression) - upper homonymous quadrantanopia 4) bilateral temporal lobe disease a) Korsakoff amnesic defect b) Kluver Bucy syndrome - apathy & placidity - increased sexual activity - sham rage c) cortical deafness d) loss of other unilateral functions

References

Harrison's Principles of Internal Medicine, 13th ed. Isselbacher et al (eds), McGraw-Hill Inc. NY, 1994, pg 154

Component-of

brain telencephalon (cerebrum)

Components

collateral sulcus hippocampal sulcus hippocampus (hippocampal formation) inferior temporal gyrus middle temporal gyrus parahippocampal gyrus (hippocampal gyrus) superior temporal gyrus superior temporal sulcus temporal cortex