Szelag E, Kolodziejczyk I, Kanabus M, Szuchnik J, Senderski A
Laboratory of Neuropsychology, Department of Neurophysiology, Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093 Warsaw, Poland.
Neurosci Lett. 2004 Jan 23;355(1-2):49-52. doi: 10.1016/j.neulet.2003.10.025.
Temporal integration in the time domain of a few seconds was investigated with a subjective accentuation paradigm in 11 monochannel cochlear implant users, who showed auditory comprehension deficits. While listening to metronome beats generated at various frequencies, patients were asked to accentuate mentally every n-th beat and create an individual rhythmic pattern. The extent of temporal integration was defined as the duration of perceptual units consisting of subjectively grouped beats at particular metronome frequencies. The results indicate that there is reduced capacity for temporal integration in implant recipients, particularly for lower metronome frequencies, in comparison to normally hearing. These observations point to the coincidence of specific temporal processing disorders and deficits in auditory comprehension after cochlear implantation.
我们采用主观强化范式，对11名存在听觉理解缺陷的单通道人工耳蜗使用者在几秒时域内的时间整合进行了研究。在聆听以不同频率产生的节拍器节拍时，要求患者在心里强化每第n个节拍，并创建一个个性化的节奏模式。时间整合的程度被定义为由特定节拍器频率下主观分组的节拍组成的感知单元的持续时间。结果表明，与听力正常者相比，人工耳蜗植入者的时间整合能力下降，尤其是在较低的节拍器频率下。这些观察结果表明，人工耳蜗植入后特定的时间处理障碍与听觉理解缺陷同时存在。
