2024
Brain-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
2023
Laminar compartmentalization of attention modulation in area V4 aligns with the demands of visual processing hierarchy in the cortex
Wang X, Nandy A, Jadi M. Laminar compartmentalization of attention modulation in area V4 aligns with the demands of visual processing hierarchy in the cortex. Scientific Reports 2023, 13: 19558. PMID: 37945642, PMCID: PMC10636153, DOI: 10.1038/s41598-023-46722-8.Peer-Reviewed Original ResearchConceptsArea V4Early visual areasVisual areasPutative excitatory neuronsLow-contrast stimuliVisual area V4Superficial neuronsExcitatory neuronsInhibitory neuronsLaminar differencesVisual processing hierarchyCortical layersContrast stimuliProcessing hierarchyNeuronsNeural responsesSuperficial layersAttention modulationCritical hubHighest areaAttentional modulationDeeper layersVisual hierarchyAttentive stateLater stagesLaminar mechanisms of saccadic suppression in primate visual cortex
Denagamage S, Morton M, Hudson N, Reynolds J, Jadi M, Nandy A. Laminar mechanisms of saccadic suppression in primate visual cortex. Cell Reports 2023, 42: 112720. PMID: 37392385, PMCID: PMC10528056, DOI: 10.1016/j.celrep.2023.112720.Peer-Reviewed Original ResearchConceptsSaccadic suppressionFiring rateInter-neuronal correlationsLocal inhibitory activityCortical firing ratesEye movementsSaccadic eye movementsPutative inhibitory interneuronsDistinct neural subpopulationsVisual cortical networkPrimate visual cortexVisual area V4Inhibitory interneuronsCortical circuitryVisual cortexSaccade onsetArea V4Single neuronsCortical networksNeural subpopulationsVisual stabilityNeuronsInhibitory activityTemporary reductionVisual sensitivity
2016
Laminar Organization of Attentional Modulation in Macaque Visual Area V4
Nandy AS, Nassi JJ, Reynolds JH. Laminar Organization of Attentional Modulation in Macaque Visual Area V4. Neuron 2016, 93: 235-246. PMID: 27989456, PMCID: PMC5217483, DOI: 10.1016/j.neuron.2016.11.029.Peer-Reviewed Original Research