2024
Brain state and cortical layer-specific mechanisms underlying perception at threshold
Morton M, Denagamage S, Blume I, Reynolds J, Jadi M, Nandy A. Brain state and cortical layer-specific mechanisms underlying perception at threshold. ELife 2024, 12: rp91722. PMID: 39556415, PMCID: PMC11573349, DOI: 10.7554/elife.91722.Peer-Reviewed Original ResearchConceptsHIT trialsProcessing of sensory stimuliStable retinal imageBehavioral statesExcitatory neuronsNeural activitySpontaneous activityElevated synchronyPerceptual thresholdsCortical layersMeasures of stateElectrophysiological activitySensory stimuliRetinal imagesVisual area V4TrialsHeightened arousalTarget stimuliStimulus identityElevated arousalSuperficial layersFeed-forward pathwayStimulus changeCortical columnsIdentical stimuliBrain state and cortical layer-specific mechanisms underlying perception at threshold
Morton M, Denagamage S, Blume I, Reynolds J, Jadi M, Nandy A. Brain state and cortical layer-specific mechanisms underlying perception at threshold. ELife 2024, 12 DOI: 10.7554/elife.91722.4.Peer-Reviewed Original ResearchHIT trialsProcessing of sensory stimuliStable retinal imageBehavioral statesExcitatory neuronsNeural activitySpontaneous activityElevated synchronyPerceptual thresholdsCortical layersMeasures of stateElectrophysiological activitySensory stimuliRetinal imagesVisual area V4TrialsHeightened arousalTarget stimuliStimulus identityElevated arousalSuperficial layersFeed-forward pathwayStimulus changeCortical columnsIdentical stimuli
2014
Cortical oscillations arise from contextual interactions that regulate sparse coding
Jadi MP, Sejnowski TJ. Cortical oscillations arise from contextual interactions that regulate sparse coding. Proceedings Of The National Academy Of Sciences Of The United States Of America 2014, 111: 6780-6785. PMID: 24742427, PMCID: PMC4020078, DOI: 10.1073/pnas.1405300111.Peer-Reviewed Original ResearchConceptsInhibitory neuronsFiring ratePower of oscillationsMonosynaptic inputDisynaptic pathwayHigher firing ratesLow firing ratesDisynaptic inputCortical circuitsSynaptic plasticityCortical stateCortical oscillationsModel cortical circuitSensory stimuliBehavioral statesStimulationSensory inputComplex natural stimuliInhibitory controlCortexNeuronsSpike timingActivity balanceNatural stimuliParadoxical experimental findings