Auditory deprivation affects processing of motion, but not color
Auditory deprivation affects processing of motion, but not color
复制标题
DOI：
10.1016/s0926-6410(02)00211-2
复制
发表时间：
2002-11-01
期刊：
影响因子：
--
通讯作者：
Mitchell, TV
中科院分区：
文献类型：
--
作者：
Armstrong, BA;Neville, HJ;Mitchell, TV
对11名听力正常和11名先天性耳聋的成年人进行了等亮度、高空间频率光栅颜色变化和灰度、低空间频率光栅运动的事件相关电位（ERP）记录。刺激被设计为优先激活腹侧和背侧流的视觉处理，分别。颜色变化诱发ERP中突出的P1和N1成分;运动诱发早期的局灶性阳性（P-INZ），最小的P1和突出的N1。颜色变化引起类似的ERP组件听力和聋人参与者。与此相反，运动引起较大的幅度和更多的前部分布的N1成分在聋人比听力参与者。这些结果表明，早期听觉剥夺可能对背侧视觉通路的功能比腹侧通路的功能有更明显的影响。(C)2002 Elsevier Science B. V.保留所有权利。
Event-related potentials (ERPs) were recorded in response to color changes of isoluminant, high spatial frequency gratings and to motion of grayscale, low spatial frequency gratings in 11 normally hearing and 11 congenitally deaf adults. The stimuli were designed to activate preferentially the ventral and dorsal streams of visual processing, respectively. Color changes evoked prominent P1 and N1 components in the ERP; motion evoked an early, focal positivity (the P-INZ), a minimal P1, and a prominent N1. Color changes elicited similar ERP components in hearing and deaf participants. In contrast, motion elicited larger amplitude and more anteriorly distributed N1 components in deaf than hearing participants. These results suggest that early auditory deprivation may have more pronounced effects on the functions of the dorsal visual pathway than on functions of the ventral pathway. (C) 2002 Elsevier Science B.V. All rights reserved.