Slide 2

Extracellular Recordings in vivo Reveal Repetitive Burst Discharge during Visual Stimulation

Simultaneous recording of extracellular single or multiple unit activity and the local field potential reveal, in a subset of neurons, the presence of oscillations in the frequency range of 30-70 Hz (gamma frequencies) during the presentation of a visual stimulus. The activity of single neurons appears to be tightly synchronized with the local field potential. Although the oscillations are evoked by the stimulus, the phase of the oscillation is not locked to the onset of the stimulus.