Abstract：
:The latency of the N100m component of the auditory evoked field (AEF) is sensitive to the period and spectrum of a sound. However, little attention was paid so far to the wave shape at stimulus onset, which might have biased previous results. This problem was fixed in the present study by aligning the first major peaks in the acoustic waveforms. The stimuli were harmonic tones (spectral range: 800-5000 Hz) with periods corresponding to 100, 200, 400, and 800 Hz. The frequency components were in sine, alternating or random phase. Simulations with a computational model suggest that the auditory-nerve activity is strongly affected by both the period and the relative phase of the stimulus, whereas the output of the more central pitch processor only depends on the period. Our AEF data, recorded from the right hemisphere of seven subjects, are consistent with the latter prediction: The latency of the N100m depends on the period, but not on the relative phase of the stimulus components. This suggests that the N100m reflects temporal pitch extraction, not necessarily implying that the underlying generators are directly involved in this analysis.
journal_name
Hear Resjournal_title
Hearing researchauthors
Seither-Preisler A,Patterson R,Krumbholz K,Seither S,Lütkenhöner Bdoi
10.1016/j.heares.2006.01.003keywords:
subject
Has Abstractpub_date
2006-03-01 00:00:00pages
88-98issue
1-2eissn
0378-5955issn
1878-5891pii
S0378-5955(06)00002-5journal_volume
213pub_type
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