Contact

Dr. Dipanjan Roy

Associate Professor

Centre for Brain Science and Application (CBSA), School of AI and Data Science, Indian Institute of Technology (IIT) Jodhpur, NH-62, Nagaur Road, Karwar, Jodhpur, Rajasthan 342037, India.

Email: droy@iitj.ac.in

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Lab news & events

In a fantastic new work, graduate student Indra Nair demonstarted using classic double rotation experiment with reward flavour-landmark cue conflict while processing memory that Hippocampus maintains a flexible and coherent map while competeing between two modalities. This is now published in Frontiers in Neural Circuits.

Hippocampus maintains a flexible and coherent map under reward flavor-landmark cue conflict.” Nair, Indrajith R., and Dipanjan Roy. Frontiers Neural Circuits (2022)

More recent works got published in various forum. Mainly, we are getting increasingly excited about understanding preservation of neural sysnchronization at various frequencies of interest with healthy aging and stability of the structural core. This may have huge implication for brain functions and behavior in the face of continuous changes in White matter structures in various areas. This is now accepted Communication Biology.

Preservation of neural synchrony at Peak Alpha Frequency via global synaptic coupling compensates for white matter structural decline over adult lifespan Anagh Pathak, Vivek Sharma, Dipanjan Roy, Arpan Banerjee doi: https://doi.org/10.1101/2021.10.24.465613 (2022) Communication Biology (accepted in May)

In a separate study, we have shown that a large part of age-associated alterations of dynamic configurations and repertoire in the whole brain resting state is governed by the stability of sensorimotor network.

Sastry, Nisha Chetana, Dipanjan Roy, and Arpan Banerjee. “Stability of sensorimotor network sculpts the dynamic repertoire of resting state over lifespan.” Cerebral Cortex (2022).

Four recent works from our lab now got published in Cerebral Cortex, Network Neuroscience & e-Neuro. Please see below.

Naskar, A., Vattikonda, A., Deco, G., Roy, D., & Banerjee, A. (2021). Multi-scale dynamic mean field model (MDMF) relates resting-state brain dynamics with local cortical excitatory–inhibitory neurotransmitter homeostasis. Network Neuroscience, 1-55.
Roy, D., & Uddin, L. Q. (2021). Atypical core-periphery brain dynamics in autism. Network Neuroscience, 5(2), 295-321.
Das, M., Singh, V., Uddin, L. Q., Banerjee, A., & Roy, D. (2021). Reconfiguration of Directed Functional Connectivity Among Neurocognitive Networks with Aging: Considering the Role of Thalamo-Cortical Interactions. Cerebral Cortex, 31(4), 1970-1986.
Thuwal, K., Banerjee, A., & Roy, D. (2021). Aperiodic and periodic components of ongoing oscillatory brain dynamics link distinct functional aspects of cognition across adult lifespan. Eneuro, 8(5).

Dr.Shubham Kumar is successful in getting DST-CSRI postdoctoral grant to start his work on Role of Brain oscillations in Insight and creativity

Two new papers from our lab published in Neuroimage and Frontiers Human Neuroscience in 2019

“Atypical flexibility in dynamic functional connectivity quantifies the severity in autism spectrum disorder” Harlalka, V., Bapi, R. S., Vinod, P. K., & Roy, D. Front. Hum. Neurosci. ; doi: 10.3389/fnhum.2019.00006 (2019)
Resting State Dynamics Meets Anatomical Structure: Temporal Multiple Kernel Learning (tMKL) Model Govinda Surampudi, Joyneel Mishra, Bapi Raju Surampudi, Gustavo Deco, Avinash Sharma, and Dipanjan Roy Neuroimage Volume 184, 1 January 2019, Pages 609-620 https://doi.org/10.1016/j.neuroimage.2018.09.054.

More exciting Large-scale brain dynamics in Aging and Multiscale modeling work in progress.

Lifespan driven global brain dynamics unfolds in a multifrequency landscape. doi: https://doi.org/10.1101/504589

Generative framework for dimensionality reduction of large scale network of non-linear dynamical systems driven by external input https://arxiv.org/abs/1901.04421

Dr.Dipanjan Roy as an invited speaker gave a presentation at the prestigious 2018 Brain Modes meeting in Cuba on “Age-related reorganization in neurocognitive networks and global brain dynamics”.

A new paper just got accepted from our Lab on Multiple Kernel Learning Model for Relating Structural and Functional Connectivity in the Brain by Govinda Surampudi in Scientific Reports 2018. February.

The new paper got accepted in Frontiers Ageing Neuroscience Integrative network analysis reveals the cell type-specific changes in the hippocampus of young, aging and Alzheimer’s disease

Two new papers from our lab one recently published in Brain Connectivity and one just got accepted in Neuroimage.

Link to Brain Connectivity article is here

https://www.liebertpub.com/doi/abs/10.1089/brain.2018.0616

A version of the accepted article in Neuroimage is in the preprint server

https://www.biorxiv.org/content/early/2018/07/11/367276

Dr.Shubham Kumar is successful in getting DST-CSRI postdoctoral grant to start his work on Role of Brain oscillations in Insight and creativity

Two new papers from our lab published in Neuroimage and Frontiers Human Neuroscience in 2019

“Atypical flexibility in dynamic functional connectivity quantifies the severity in autism spectrum disorder” Harlalka, V., Bapi, R. S., Vinod, P. K., & Roy, D. Front. Hum. Neurosci. ; doi: 10.3389/fnhum.2019.00006 (2019)
Resting State Dynamics Meets Anatomical Structure: Temporal Multiple Kernel Learning (tMKL) Model Govinda Surampudi, Joyneel Mishra, Bapi Raju Surampudi, Gustavo Deco, Avinash Sharma, and Dipanjan Roy Neuroimage Volume 184, 1 January 2019, Pages 609-620 https://doi.org/10.1016/j.neuroimage.2018.09.054.

More exciting Large-scale brain dynamics in Aging and Multiscale modeling work in progress.

Lifespan driven global brain dynamics unfolds in a multifrequency landscape. doi: https://doi.org/10.1101/504589

Generative framework for dimensionality reduction of large scale network of non-linear dynamical systems driven by external input https://arxiv.org/abs/1901.04421

Dr.Dipanjan Roy as an invited speaker gave a presentation at the prestigious 2018 Brain Modes meeting in Cuba on “Age-related reorganization in neurocognitive networks and global brain dynamics”.

The new paper got accepted in Frontiers Ageing Neuroscience Integrative network analysis reveals the cell type-specific changes in the hippocampus of young, aging and Alzheimer’s disease

Two new papers from our lab one recently published in Brain Connectivity and one just got accepted in Neuroimage.

Link to Brain Connectivity article is here

https://www.liebertpub.com/doi/abs/10.1089/brain.2018.0616

A version of the accepted article in Neuroimage is in the preprint server

https://www.biorxiv.org/content/early/2018/07/11/367276

Please see our detailed program under

http://www.nbrc.ac.in/BrainModes/

Focused Stroke meeting in TCS campus Bangalore organised by TCS from 14-15 April 2017

New article from lab member Shruti just got accepted in Trends in Cognitive Sciences 2017 “Metastability in Senescence”

Our Computational Cognitive Neuroscience Lab has moved from CBCS, University of Allahabad to NBRC, Manesar

New work abstract on Autism Spectrum Disorder (ASD) by student Vatika just got accepted in the Frontiers Neuroscience Brain Imaging methods
“Complex Modular Organisation of Higher-Order Resting State
Networks in ASD”

Lecture and tutorial on Brain connectivity tools
Workshop Brain 2016 @ IIT Delhi
http://web.iitd.ernet.in/~tgandhi/speakers.html

CBCS Cognitive Neurodynamics Lab, Cognitive Brain Lab NBRC and Berlin Charité and Max Planck Institute of Brain and Cognitive Sciences are organising an international conference “Brain Modes 2017”
in December 2017 in Delhi. We have renowned experts from various fields of imaging MEG, EEG and fMRI. Pre conference 2 days hands on works shop on Large scale Brain simulation, Recording Brain oscillations with EEG, MEG

New article got accepted in Frontiers in Neurology
Dagar S, Roychowdhury S, Bapi RS, Dutta A and Roy D (2016). Near-infrared spectroscopy (NIRS) -electroencephalography (EEG) based brain-state dependent electrotherapy (BSDE): A computational approach based on excitation-inhibition balance hypothesis. Front. Neurol. 7:123. doi: 10.3389/fneur.2016.00123

Talk delivered by Dipanjan at IAN 2016 @NBRC on recovery of Brain function to normalcy using homeostatic plasticity mechanisms

Akanksha Gupta is joining our lab as a research assistant

Nayanica Srivastava is joining our lab as a Junior Research Fellow

New publication just got accepted in NIPS 2016 Barcelona by MS student Govinda in Combining Multiscale Diffusion Kernels for Learning the Structural and Functional Brain Connectivity http://dx.doi.org/10.1101/078766

NIPS 2016 @Barcelona

http://www.stat.ucla.edu/~akfletcher/brainsbits.html

New Paper “Role of context in Music perception” by MS student Siddharth Merhotra, PhD student Anuj Kumar Shukla is accepted in prestigious 14th chapter of annual conference of International Society for Music perception and cognition (ICMPC) in SanFrancisco 2016.

http://www.icmpc.org/icmpc14/index.html

In May, our cognitive science Lab is moving to UGC center for excellence center for Brain and cognitive Science (CBCS), Allahabad in the Allahabad University Campus.

New paper Does the regulation of local excitation–inhibition balance aid in recovery of functional connectivity? A computational account in NeuroImage
Volume 136, 1 August 2016, Pages 57–67

New commentary article published in the Cognitive Neuroscience Journal 2016 June Promises and pitfalls of relating alteration of white matter pathways causing improvement in Cognitive performance

New proceeding ICMPC 2016 article published in June 2016
Neurophysiological Investigation of Context Modulation based on Musical Stimulus

Frontiers Neurology currently editing a Research Topic “Neuroimaging and Computational Model Guided Post-Stroke Non-Invasive Brain Stimulation Therapy”

06.06.2015 two papers accepted at ACCS 2015 IIT Kanpur , two oral presentations.

08.06.2015 Hands on tutorial on resting state structural connectivity analysis pipeline and functional connectivity analysis from a graph theoretical perspective @ACCS 05th July 2015.

http://www.cse.iitk.ac.in/users/hk/accs2015/

11.06.2015 Human Lesion study modeling and fMRI analysis is upcoming

12.07.2015 Amit Kumar Jaiswal got 1st prize for his poster in ACCS 2015

02.08.2015 Amit Kumar Jaiswal new PhD student starting from Monsoon 2015

Indo-French Cefipra Stroke conference @AIMS Delhi Oct 29 – 31st 2015
https://team.inria.fr/nphys4nrehab/cefipra-franco-indian-workshop/

BrainModes Atlanta USA
December 8-11, 2015

http://clinicals.snhp.gsu.edu/brainmodes.html

Recently finished young researchers conference in Cognitive Science at University of Hyderabad
https://yrccncs2016.wordpress.com/

Anirudh Vattikonda lab member is going to submit his MS thesis. First MS thesis from Cognitive Science Research Lab