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  • Title: Middle latency auditory evoked potentials to tones of different frequency.
    Author: Woods DL, Alain C, Covarrubias D, Zaidel O.
    Journal: Hear Res; 1995 May; 85(1-2):69-75. PubMed ID: 7559180.
    Abstract:
    The scalp distributions of middle latency auditory evoked potentials (MAEPs) elicited by tone bursts of 250 and 4000 Hz were compared in two experiments. Na (19.9 ms), Pa (29.8 ms), and Pb (51.4 ms) components elicited by tones of either frequency had fronto-central distributions, whereas the Nb component (38.4 ms) was maximal at parietal sites. Although the distributions of MAEP components varied as a function of the ear of stimulation, no significant differences were found as a function of tone frequency. The results are consistent with suggestions that MAEPs reflect activation of non-tonotopically organized generators.
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