Khalfa S, Morlet T, Veuillet E, Perrot X, Collet L
CNRS UPRESA 5020, Département d'ORL, Hôpital Edouard Herriot, Lyon.
Ann Otolaryngol Chir Cervicofac. 1998 Jun;115(3):156-60.
Neuropsychological studies have demonstrated that language perception is lateralized at the hemispheric level. There is also much evidence for a peripheral lateralization of the auditory system in humans. Spontaneous otoacoustic emissions are more frequent in the right than in the left ear. The medial olivo-cochlear system is also more functional in the right than in the left ear in normal subjects. The study of specific samples shows that this asymmetry is found in professional musicians which have more functional efferent system in both ears. A link is hypothesized between peripheral and central laterality because of a dysfunctional peripheral asymmetry in pathological cases which show hemispheric lateralization disorders. Consequences of those pathological data will be discussed.
神经心理学研究表明，语言感知在半球水平上存在侧化现象。也有许多证据表明人类听觉系统存在外周侧化。自发性耳声发射在右耳比左耳更频繁。在正常受试者中，内侧橄榄耳蜗系统在右耳也比左耳功能更强。对特定样本的研究表明，在双耳传出系统功能更强的职业音乐家中也存在这种不对称性。由于在显示半球侧化障碍的病理病例中存在功能失调的外周不对称性，因此推测外周和中枢侧化之间存在联系。将讨论这些病理数据的后果。
