Title :
Increase of high-frequency (>150 hz) intracranial EEG activity during face perception in humans
Author :
Lachaux, Jean-Philippe ; George, Nathalie ; Renault, Bernard ; Martinerie, Jacques ; Kahane, Philippe
Author_Institution :
Lab. de Neurosciences Cognitives et d´´Imagerie Cerebrale, CNRS, Paris, France
Abstract :
We have analyzed high-frequency components of the intracranial EEG activity in response to visual stimuli in the occipital and temporal cortex of epileptic patients. Face perception in particular elicited modulations in the gamma band at frequency ranges up to 250 Hz. This study suggests that the response to complex visual stimuli extends well beyond the common frequency components usually studied in evoked potentials.
Keywords :
diseases; electroencephalography; face recognition; visual evoked potentials; visual perception; 150 to 250 Hz; complex visual stimuli; epileptic patients; evoked potentials; face perception; gamma band modulations; high-frequency components; high-frequency intracranial EEG activity; humans; occipital cortex; temporal cortex; visual stimuli; Delay; Electroencephalography; Epilepsy; Face recognition; Fingers; Fourier transforms; Humans; Scalp; Time frequency analysis; Wavelet transforms;
Conference_Titel :
Neural Engineering, 2003. Conference Proceedings. First International IEEE EMBS Conference on
Print_ISBN :
0-7803-7579-3
DOI :
10.1109/CNE.2003.1196743
