Skip to content

Home News Data Software Models Articles Search Help
    You are not logged in Log in Feedback
You are in: home » Members » btel's Home » Artykuly pracowni Ukladu Wzrokowego » Article.2004.07.06.19

Created by
Preprint Article
Last modified:
Sign in
User name


Article Posted by btel - Last updated: 2004-07-06
File NR-10-3589.pdf
Short Description
Coupling of beta and gamma activity in cortico-thalamic system of cats attending to visual stimuli
Description We have previously shown that local field potentials (LFPs) recorded in the lateral geniculate nucleus (LGN) and primary visual cortex (VCx) of the cat contain significantly more beta frequency activity when the animal attends to visual than to auditory stimuli. In the present study we utilised data from the same experiments to calculate the cross-correlation between envelopes of filtered beta (16-24Hz) and gamma (30-45Hz) oscillatory signals recorded at the same sites. Correlation values obtained from visual trials were significantly higher than those calculated for the auditory task. This observation was typical in those LGN and VCx recording sites which corresponded to the central representation of the visual field. The cross-correlation function peaked within a 20 ms time window from the centre of the cross-correlogram. These findings support the hypothesis that beta activity provides an excitatory background for the appearance of oscillations in the gamma band.
Bibliographic Information NeuroReport 10: 3589-3594
My Related Items From Neuroinf.Pl
Other Related Items From Neuroinf.Pl
Original Release Date
2004/04/19 20:26:00 GMT+2
Related Resources