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Temporal lobe signs

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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The features of temporal lobe lesions are often slight.

Involving the auditory cortex:

  • cortical deafness, may be complete if the lesion is bilateral - rare
  • involving the surrounding association areas:
    • in the dominant hemisphere - Wernicke's aphasia
    • in the non-dominant hemisphere - amusia
  • tinnitus, auditory hallucinations
  • temporal lobe epilepsy - complex partial seizure in the temporal lobes

Involving the middle and inferior temporal gyri:

  • disturbance of memory and learning - deja vu, jamais vu, post-ictal amnesia

Involving the limbic lobe:

  • aggressive or antisocial behaviour
  • inability to acquire new memories
  • olfactory hallucinations, e.g. burning rubber

Involving the optic radiation:

  • upper homonymous quadrantanopia

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