Turgeon Christine, Champoux François, Lepore Franco, Ellemberg Dave
Neuropsychology and Cognition Research Center, University of Montreal, Montréal, Québec, Canada.
Neuroreport. 2012 Apr 18;23(6):385-9. doi: 10.1097/WNR.0b013e3283525af4.
The aim of the study was to investigate low-level visual function in cochlear implant users. Spatial frequency discrimination was assessed in 16 adults with normal hearing and 18 adults with profound deafness who had a cochlear implant. Thresholds were measured with sinusoidal gratings using a two-alternative temporal forced-choice procedure combined with an adaptive staircase. Cochlear implant users had significantly poorer spatial frequency discrimination compared with normal hearing participants. Therefore, auditory privation leads to substantial changes in this particular visual function and these changes remain even after the restoration of hearing with a cochlear implant.
该研究的目的是调查人工耳蜗使用者的低水平视觉功能。对16名听力正常的成年人和18名植入了人工耳蜗的重度耳聋成年人进行了空间频率辨别评估。使用双选时间强制选择程序结合自适应阶梯法，通过正弦光栅测量阈值。与听力正常的参与者相比，人工耳蜗使用者的空间频率辨别能力明显较差。因此，听觉剥夺会导致这种特定视觉功能发生显著变化，并且即使在通过人工耳蜗恢复听力后，这些变化仍然存在。
