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 stimuliBrain-state mediated modulation of inter-laminar dependencies in visual cortex
Das A, Sheffield A, Nandy A, Jadi M. Brain-state mediated modulation of inter-laminar dependencies in visual cortex. Nature Communications 2024, 15: 5105. PMID: 38877026, PMCID: PMC11178935, DOI: 10.1038/s41467-024-49144-w.Peer-Reviewed Original ResearchConceptsBrain state fluctuationsUnique dependenceSpatial attentionBehavioral outcomesState fluctuationsDeployment of spatial attentionDeployment of attentionBehaviorally relevant objectsComputational goalCluttered environmentsVisual cortexObject recognitionExcitatory populationHierarchical computationVisual area V4Internal fluctuationsDependenceRelevant objectsModulation patternsTask demandsEnhance information transferCortical networksNeural activityInformation transferArea V4