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  • Title: Auditory evoked magnetic fields after ischemic brain lesions.
    Author: Mäkelä JP, Hari R, Valanne L, Ahonen A.
    Journal: Ann Neurol; 1991 Jul; 30(1):76-82. PubMed ID: 1929230.
    Abstract:
    Auditory evoked magnetic fields to noise/square-wave sequences, presented once every 2.2 seconds, were recorded in 8 patients who had ischemic lesions in the auditory cortex or in its vicinity. In 2 patients with large temporoparietal lesions, the magnetic 100-msec deflection (N100m) was absent over the damaged side. In 1 patient with a large but less deep frontotemporal lesion, a small N100m could be discerned on the defective side. Frontal lesions or small lesions in the vicinity of the supratemporal plane had no effect on N100m. Auditory evoked magnetic field recordings may be useful in clinical studies of auditory cortical functions.
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