Abstract：
:Ultrasound can be heard by bone conduction in man. However, there has been no consensus about the perception mechanism of bone-conducted ultrasound (BCU). In the current study, to clarify the central auditory system of BCU, the effects of stimulus duration for 30 kHz BCU on N1m were compared with those for air-conducted 1 kHz tone bursts by magnetoencephalography. As a result, the growth of N1m amplitude for both stimuli saturated at the duration of 40 ms, which suggest that the temporal integration system of BCU is similar to that of audible sound. However, significant differences in the growth were observed below the saturation points. The results indicate a possibility that there are some differences in the central auditory system between BCU and audible sound.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Nishimura T,Nakagawa S,Sakaguchi T,Hosoi H,Tonoike Mdoi
10.1016/s0304-3940(02)00409-3keywords:
subject
Has Abstractpub_date
2002-07-19 00:00:00pages
119-22issue
2eissn
0304-3940issn
1872-7972pii
S0304394002004093journal_volume
327pub_type
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