Dipanjan Roy

A generalized scaling law reveals synchrony-driven reorganizationof brain dynamics across the human lifespan

This paper introduces a generalized scaling law for neural data, showing that brain synchrony affects scaling exponents across the lifespan and in ADHD.

A Mechanistic Whole Brain Model to Capture Simultaneous EEG-fMRI Data

This paper introduces a novel oscillatory network model to simulate simultaneous EEG-fMRI data, showing improved replication of functional connectivity and dynamics across spatiotemporal scales.

When the inner clock fades: Interoceptive decline and consolidation of phase resetting in cortical rhythms by cardiac events underlie healthy lifespan ageing

The paper examines age-related changes in how cardiac signals influence neural oscillations and time perception in the brain.

Neural signatures of prioritization and facilitation in retrieving repeated items in Visual Working Memory

This study investigates neural dynamics in Visual Working Memory by comparing repeated and non-repeated item retrieval, finding that repeated items are prioritized and show distinct EEG patterns.

Local homeostasis preserves global neural dynamics compensating for structural loss during human lifespan aging

The paper identifies GABA and glutamate as computational mechanisms preserving functional integration in aging brains despite structural decline, validated across datasets.

Beta Desynchronization Mediates The Impact Of Internally Directed Attention In A Dual-Task Working Memory Paradigm

The paper investigates how internally directed attention affects working memory performance using EEG, finding distinct neural signatures and behavioral consequences.

Contributions of short and long-range white matter tracts in dynamic compensation with aging

This study uses a whole-brain generative model to show how short- and long-range white matter tracts contribute to dynamic compensation in aging brains by modulating global coupling strength and conduction delay.

Synergistic control of axon regeneration and functional recovery by let-7 miRNA and Insulin signalling (IIs) pathways

This study shows that let-7 miRNA and Insulin signalling pathways work together to enhance axon regeneration and functional recovery in C. elegans neurons.

Explainable Deep Learning Framework: Decoding Brain Task and Prediction of Individual Performance in False-Belief Task at Early Childhood Stage

This paper introduces an explainable deep learning framework to decode brain states and predict individual performance in false-belief tasks using functional connectivity data from early childhood.

Hemispheric specialization of functions are tuned by conduction velocities of neuronal propagation in large-scale brain networks

The paper shows that conduction velocities tune hemispheric specialization in speech and melody processing by influencing functional lateralization in the brain.

Neural volatility in orbitofrontal cortex underlies affective processing during healthy cognitive aging

The paper examines neural volatility in the orbitofrontal cortex during affective processing in healthy aging, finding that higher volatility correlates with distinct affective experiences and uncertainty in older adults.

High fat diet promotes obesity by driving miRNA dependent neurogenesis and integration of orexigenic neurons in the feeding circuitry

This study shows that high-fat diet induces miRNA-dependent neurogenesis in hypothalamic tanycytes, leading to weight gain and liver fat accumulation by promoting the integration of orexigenic neurons into the feeding circuit.

Developmental stability and segregation of Theory of Mind and Pain networks carry distinct temporal signatures during naturalistic viewing

This study examines the temporal stability of Theory of Mind and Pain networks in children and adults during naturalistic viewing, finding distinct stability patterns and age-related increases in stability and specialization.

Effective networks mediate right hemispheric dominance of human 40 Hz auditory steady-state response

The paper investigates the directed information flow in the brain during 40 Hz auditory steady-state responses, revealing right hemispheric dominance and bidirectional interactions between specific cortical regions.

Neuromolecular interactions guiding homeostatic mechanisms underlying healthy ageing: A view from computational microscope

The paper uses a computational framework to study how glutamate and GABA levels change with age to maintain neural network performance and brain health.

Similar structural area modulates local inhibitioninitiating post-lesion adaptive mechanism

The paper identifies structural and dynamically similar areas that predict compensatory brain regions after a lesion, showing they are primarily recruited from the ipsilesional hemisphere.

End-to-End Explainable AI: Derived Theory-of-Mind Fingerprints to Distinguish Between Autistic and Typically developing and Social Symptom Severity

The paper develops an explainable AI model to distinguish between autistic and typically developing individuals based on ToM brain connectivity patterns, achieving high classification accuracy.

Altered global modular organization of intrinsic functional connectivity in autism arises from atypical node-level processing

This study identifies altered global modular organization in ASD children's brain networks, arising from nodal processing changes, using resting-state fMRI data from ABIDE.

Emotion Dynamics as Hierarchical Bayesian Inference in Time

The paper shows that emotional experiences arise from hierarchical Bayesian uncertainty estimation in the brain, with lateral orbitofrontal cortex complexity predicting anxiety predisposition.

Predicting Response to McGurk Illusion Based on Periodic and Aperiodic Prestimulus EEG Activity

This study identifies prestimulus EEG features, including alpha and beta oscillations and aperiodic components, that predict response to the McGurk illusion at single-trial levels.

How synchrony and metastable network dynamics are affected in fast and slow timescales with aging: Implication for Cognition

This study investigates how aging affects brain network dynamics through synchrony and metastability across different timescales using computational models and neuroimaging data.

Preservation of neural synchrony at peak alpha frequency via global synaptic scaling compensates for white matter structural decline over adult lifespan

The paper shows that preserving neural synchrony at peak alpha frequency through global synaptic scaling compensates for white matter decline in aging humans.

Hippocampus maintains a flexible and coherent map under reward flavor-landmark cue conflict.

This study investigates how reward flavors and distal cues influence hippocampal spatial mapping in rats during conflicting associations, finding that place cells maintain spatial coupling but not simultaneous binding of reward and cues.

Unsupervised characterization of dynamic functional connectivity reveals age-associated differences in temporal stability and connectivity states during rest and task

This study uses an unsupervised method to analyze dynamic functional connectivity in fMRI data, revealing age-related differences in network stability during rest and tasks.

Contextual Prediction Errors Reorganize Episodic Memories in Time

This study investigates how prediction errors influence the temporal organization of episodic memories through a 3-day movie viewing paradigm, finding that prediction errors lead to faster recall and reorganization of unexpected sequences.

Multiscale dynamic mean field model to relate resting-state brain dynamics with local cortical excitatory-inhibitory neurotransmitter homeostasis in health and disease

MEG Oscillatory and Aperiodic neural dynamics contribute to different cognitive aspects of short-term memory decline through the lifespan

This study examines how MEG oscillatory and aperiodic neural dynamics change with age and their impact on cognitive and metacognitive functions in short-term memory.

Characterization of neural communication dynamics in the Ventral Attention Network across distinct spatial and spatio-temporal scales

This study investigates neural communication dynamics in the Ventral Attention Network using EEG and fMRI, revealing context-specific alpha-band interactions during saliency processing.

Lateralized functional responses in the cortex arise from the dynamic interactions in the structural connectome

The paper uses computational modeling and empirical EEG data to show that hemispheric lateralization of brain function arises from dynamic interactions in the structural connectome.

Reconfiguration of directed functional connectivity among triple networks with aging: Considering the role of thalamo-cortical interactions

This study examines age-related changes in directed functional connectivity among triple networks using resting-state fMRI, revealing thalamo-cortical interactions influence network reconfiguration.