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

Frequency-specific, i.e., narrow-band brain, activity is traditionally analyzed on the basis of either a time- or frequency-domain represent ation of the signal. Here we demonstrate an alternative method based o n 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 nov el approaches to averaging become possible.