Simultaneously induced slow and fast gamma waves travel independently in primate primary visual cortex
Gautham, B. K.; Ray, S.
Show abstract
Travelling waves have been reported for multiple neuronal oscillations across the cortex. Within the primary visual cortex (V1), large visual stimuli (gratings) can induce two gamma oscillations - slow (20-35 Hz) and fast (40-60 Hz), potentially due to two different interneuronal classes. However, wave like behaviour of these rhythms and their relationship is unknown. We showed large gratings to monkeys that simultaneously induced slow and fast gamma while recording from V1 using microelectrode arrays. Both slow and fast gamma were organized as travelling waves that were not locked to stimulus onset. Direction of wave propagation was significantly different but showed no correlation, even in concurrent waves. Slow gamma waves lasted for longer durations than fast gamma. Wave direction varied with stimulus orientation and spatial frequency. Thus, slow and fast gamma oscillations in V1 show unique spatial and temporal wave dynamics signifying that these gamma rhythms are generated by distinct neural circuits.
Matching journals
The top 3 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- Local field potential sharp waves with diversified impact on cortical neuronal encoding of haptic input 95%
- Cognitive penetrability of scene representations based on horizontal image disparities 94%
- Layer-specific sensory processing impairment in the primary somatosensory cortex after motor cortex infarction 94%
Similar papers in this journal
- Dynamic Modulation of Beta-Band Oscillations in the LGN and Their Role in Visual Processing 95%
- Value-based search efficiency is encoded in substantia nigra reticulata firing rate, spiking irregularity and local field potential 95%
- On the functional role of gamma synchronization in the retinogeniculate system of the cat 95%
Similar papers in this journal
- The role of motor and environmental visual rhythms in structuring auditory cortical excitability 94%
- Cortical mapping of the sensory response reveals strong brain-state dependence of the late component 94%
- Microendoscopic Calcium Imaging In Supplementary Motor Area And Primary Motor Cortex Of Rhesus Macaques At Rest And During Arm Movement 94%
Similar papers in this journal
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.