Event-related potentials (ERPs) were recorded during auditory and visual "oddball" tasks from a patient with a severe verbal memory deficit due to a low grade infiltrating glioma which involved the full extent of the left medial temporal lobe. In both sensory modalities, the patient's oddball-evoked P300s were symmetrical and of normal amplitude. These findings are difficult to reconcile with the hypothesis that the hippocampus, or any other medial temporal structure, makes a substantial contribution to the scalp P300.
|Number of pages||6|
|Journal||Journal of Neurology, Neurosurgery & Psychiatry|
|Publication status||Published - 1991|
- Human hippocampal-formation; endogenous potentials; lobectomy; epilepsy