The effect of selective attention on electroencephalography responses to high-level hierarchical linguistic structures
10.16066/j.1672-7002.2024.02.007
- VernacularTitle:选择性注意对高级语言层级结构脑电响应影响的研究
- Author:
Yi LIU
1
;
Ge ZHANG
;
Pengfei LIU
;
Shuo WANG
Author Information
1. 首都医科大学附属北京同仁医院,北京市耳鼻咽喉科研究所,耳鼻咽喉头颈外科学教育部重点实验室(首都医科大学),北京 100005
- Keywords:
Speech perception;
Attention;
Language;
Electroencephalography;
Selective attention;
High-level language processing
- From:
Chinese Archives of Otolaryngology-Head and Neck Surgery
2024;31(2):101-104
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To explore the neural mechanisms underlying the speech perception in individuals with normal hearing under the influence of selective attention.METHODS There were 32 individuals with normal hearing who were recruited.By manipulating the participants'selective attention,two simultaneous speech streams were differentiated into target and interfering speech.Participants were guided to complete an auditory perception electroencephalogram(EEG)experiment.Fourier spectrum analysis was used to calculate the spectrum responses induced by the two types of speech,and the differences in EEG energy values at the levels of character,word,and phrase were compared.RESULTS This study observed significant differences in the EEG responses between target and ignored speech at the word level(2 Hz),while no significant differences were observed at the character level(4 Hz)and phrase level(1 Hz).CONCLUSION In environments with multiple speech streams,selective attention primarily processes and encodes the interested speech at the word level rapidly and effectively.This study preliminarily reveals how the brain represents auditory language and constructs different language hierarchy units under the modulation of selective attention,providing a theoretical model for hearing aid algorithms in hearing-impaired patients.
