The Characteristics of Auditory Event-related Potential in Presbycusis Patients
10.3969/j.issn.1006-7299.2017.04.005
- VernacularTitle:老年性聋患者听觉事件相关电位特征分析
- Author:
Yan JING
;
Jianping LIANG
;
Lu PENG
;
Ruichun CHEN
- Keywords:
Presbycusis;
Auditory event-related potential;
Mismatch negativity;
P300
- From:
Journal of Audiology and Speech Pathology
2017;25(4):353-356
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the characteristics of auditory event-related potentials(AERP) mismatch negativity and P300 in presbycusis patients.Methods Auditory event-related potentials were recorded from 20 presbycusis patients, 20 normal hearing elderly subjects and 20 normal young volunteers(the control group) in the Oddball stimulus paradigm.Mismatch negativity(MMN) was tested under the status of reading.P300 was tested under the status of concentrating.The latencies and amplitudes of 3 groups were compared.Results The latency of MMN in the presbycusis patient group(187.38±29.63ms) was significantly longer than those of the normal hearing older group(160.10±23.21±ms)and the control group(148.22±19.30 ms)(P<0.01).There were statistically significant differences between the normal hearing older group and control group(P<0.05).The amplitude differences were not statistically significant among the 3 groups(P>0.05).The latency of P300 in the presbycusis patient group (369.83±27.09 ms) was significantly longer than those of the normal hearing older group(332.89±25.60 ms)and the control group(318.51±22.32ms)(P<0.01).The amplitude differences were not statistically significant among the 3 groups(P>0.05).Conclusion The presbycusis patients show some central auditory processing dysfunction and cognitive impairment.MMN and P300 might be used as objective methods for evaluating central auditory processing and cognitive function in presbycusis patients.
