ArticlePLoS computational biology2021
The visual cortex produces gamma band echo in response to broadband visual flicker.
Article in PLoS computational biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 21 citations in OpenAlex.
- Hierarchical brain dynamics supporting visual perceptual transitions.Science advances · 2026Article
- Preliminary study of sex-based neural responses and cognitive benefits of a 40 Hz rhythmic light intervention in mild cognitive impairment.Journal of Alzheimer's disease : JAD · 2025Article
- Guided visual search is associated with target boosting and distractor suppression in early visual cortex.Communications biology · 2025Article
- Using Rapid Invisible Frequency Tagging (RIFT) to Probe the Neural Interaction Between Representations of Speech Planning and Comprehension.Neurobiology of language (Cambridge, Mass.) · 2025Article
- Challenges and Approaches in the Study of Neural Entrainment.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Review
- Article
- Attention Drives Visual Processing and Audiovisual Integration During Multimodal Communication.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
- Rapid invisible frequency tagging (RIFT): a promising technique to study neural and cognitive processing using naturalistic paradigms.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
- Gamma Oscillations in Alzheimer's Disease and Their Potential Therapeutic Role.Frontiers in systems neuroscience · 2021Review
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
The aim of this study is to uncover the network dynamics of the human visual cortex by driving it with a broadband random visual flicker. We here applied a broadband flicker (1-720 Hz) while measuring the MEG and then estimated the temporal response function (TRF) between the visual input and the MEG response. This TRF revealed an early response in the 40-60 Hz gamma range as well as in the 8-12 Hz alpha band. While the gamma band response is novel, the latter has been termed the alpha band perceptual echo. The gamma echo preceded the alpha perceptual echo. The dominant frequency of the gamma echo was subject-specific thereby reflecting the individual dynamical properties of the early visual cortex. To understand the neuronal mechanisms generating the gamma echo, we implemented a pyramidal-interneuron gamma (PING) model that produces gamma oscillations in the presence of constant input currents. Applying a broadband input current mimicking the visual stimulation allowed us to estimate TRF between the input current and the population response (akin to the local field potentials). The TRF revealed a gamma echo that was similar to the one we observed in the MEG data. Our results suggest that the visual gamma echo can be explained by the dynamics of the PING model even in the absence of sustained gamma oscillations.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.