ABRUPT UNILATERAL DEAFNESS MODIFIES FUNCTION OF HUMAN AUDITORY PATHWAYS

被引：48

作者：

VASAMA, JP ^{[1
]}

MAKELA, JP ^{[1
]}

PYYKKO, I ^{[1
]}

HARI, R ^{[1
]}

机构：

[1] HELSINKI UNIV HOSP,DEPT OTOLARYNGOL,HELSINKI,FINLAND

来源：

NEUROREPORT | 1995年 / 6卷 / 07期

关键词：

MAGNETOENCEPHALOGRAPHY; AUDITORY EVOKED FIELDS; DEAFNESS; ACOUSTIC NEUROMA; REORGANIZATION; HUMAN;

D O I：

10.1097/00001756-199505090-00003

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

WE studied nine patients with unilateral abrupt deafness caused by acoustic neuroma surgery. Cortical responses to tones delivered to the intact ear were recorded postoperatively with a 122-channel whole-scalp neuromagnetometer. In three patients, followed for 12 months with 2-4 measurements, evoked responses originating in the auditory cortices were weak and delayed one month after the operation in both hemispheres. During the follow-up, the amplitudes reached the control level. No response abnormalities were found in patients who were studied 1.5-4.5 years after the operation. Our findings suggest that abrupt unilateral deafness causes immediate changes in the function of auditory pathways of adult humans and that reorganization takes place within 1 year.

引用

页码：961 / 964

页数：4

共 20 条

[1] 122-CHANNEL SQUID INSTRUMENT FOR INVESTIGATING THE MAGNETIC SIGNALS FROM THE HUMAN BRAIN [J].