GABOR FILTERS - AN INFORMATIVE WAY FOR ANALYZING EVENT-RELATED BRAIN ACTIVITY

被引：104

作者：

SINKKONEN, J

TIITINEN, H

NAATANEN, R

机构：

[1] Department of Psychology, Cognitive Psychophysiology Research Unit, University of Helsinki, SF-00014

来源：

JOURNAL OF NEUROSCIENCE METHODS | 1995年 / 56卷 / 01期

基金：

芬兰科学院;

关键词：

EVENT-RELATED OSCILLATORY BRAIN RESPONSE; GABOR FILTERING;

D O I：

10.1016/0165-0270(94)00111-S

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Frequency-specific, i.e., narrow-band brain, activity is traditionally analyzed on the basis of either a time- or frequency-domain representation of the signal. Here we demonstrate an alternative method based on Gabor functions which are well known for their optimal concentration in time and frequency. Using Gabor filtering, amplitude and frequency information can be separated clearly from one another and certain novel approaches to averaging become possible.

引用

页码：99 / 104

页数：6

共 16 条

[1]

Bracewell R, 1978, FOURIER TRANSFORM IT

[2] THE WAVELET TRANSFORM, TIME-FREQUENCY LOCALIZATION AND SIGNAL ANALYSIS [J].