Okada H, Yamane H, Nakai Y
Department of Otolaryngology, Osaka City University Medical School, Japan.
Acta Otolaryngol Suppl. 1991;486:61-5. doi: 10.3109/00016489109134983.
Morphological changes of the spiral vessels of guinea pig after rock music exposure (110-120 dB SPL, 1-3 h) were investigated. Characteristic of rock music is an almost incessant sound production with narrow dynamic range, and high energy in the low tone area. Morphometrical study showed that the lumina of the spiral vessels have a tendency to dilate at all turns in 1-2-h-exposure groups, but tended to constrict, through only at the 2nd turn, in the group of 3-h exposure. This finding that early dilatation of the spiral vessels later turns into constriction may be one of the causes of noise induced temporary threshold shifts.
研究了豚鼠暴露于摇滚音乐（110 - 120 dB SPL，1 - 3小时）后螺旋血管的形态学变化。摇滚音乐的特点是声音几乎持续不断，动态范围窄，低音区能量高。形态计量学研究表明，在1 - 2小时暴露组中，螺旋血管的管腔在各圈均有扩张趋势，但在3小时暴露组中，仅在第2圈出现收缩趋势。螺旋血管早期扩张随后转变为收缩这一发现可能是噪声诱发暂时性阈移的原因之一。
