Faculty profile

Arjun Krishnaswamy

ResearcherPhysiologyMcGill University

This profile is built from public research funding records (CIHR, NSERC and SSHRC) and PubMed. We have not imported them from a McGill University directory, so their courses may be missing. Find their university profile.

Arjun Krishnaswamy

Researcher

Physiology

Health Sciences

McGill University

Montreal, Quebec, Canada

Supervision signals

Has led research grants, which requires an independent research appointment. Ask their department whether they supervise graduate students.
9 publications in the last five years, latest in 2026.
Senior (last) author on 4 recent papers, a sign of leading a research group.
Principal investigator on 8 research grants (5 CIHR, 2 NSERC, 1 SSHRC), most recently in 2024.
Supervised 4 trainees who won CIHR awards, most recently in 2026.

These signals come from public records, including CIHR, NSERC and SSHRC funding decisions. Ask the professor or the graduate program whether they are taking new students.

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Collaborators

Grants

Publications by year

Counts cover the works listed on the university profile; citation counts come from Dimensions.

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Signals and details

Research

Electrophysiology Optogenetics Synaptic Specificity Crc Circuit Assembly In Vivo Imaging Molecular Recognition Neural Circuits

Latest papers

Spatial biases in visual feature representation of mouse dorsal lateral geniculate nucleus boutons.
iScience · 2026 · senior author
TRACR: an anterograde transneuronal tracing system for genetic access across synapses and longitudinal circuit analysis.
bioRxiv : the preprint server for biology · 2026
Rapid dynamics of dorsal raphe serotonin neurons regulate the strength of visual attention.
Nature communications · 2026 · senior author

All 18 publications

Latest funding

The role of cortical neuromodulator dynamics in attention and ASD
CIHR · 2026 · Supervisor
$140,000
Probing Atypical Attentional Circuits in Fragile X Syndrome with High-Speed Voltage Imaging and Optogenetics
CIHR · 2025 · Supervisor
$140,000
A synthetic ligand-receptor platform to map and manipulate cellular interactions in intact nervous systems.
CIHR · 2024 · Co-investigator
$300,000

All 13 grants and awards

18 publications.

Spatial biases in visual feature representation of mouse dorsal lateral geniculate nucleus boutons.

Cha K, Rangel Olguin AG, Sharif-Naeini R, Cook EP, Krishnaswamy A

iScience2026Senior author

DOI: 10.1016/j.isci.2026.117088 PMID: 42603969

TRACR: an anterograde transneuronal tracing system for genetic access across synapses and longitudinal circuit analysis.

Ibrahimi M, Gray MT, Rochon PL, Eiras SM, Lee JJ, Pietraszkiewicz P, Dabiri S, Hicks JL, Salter MW, Boisvert M, Paquet MÈ, Josselyn SA, Martemyanov KA, Krishnaswamy A, Wallace VA, Lefebvre JL

bioRxiv : the preprint server for biology2026

DOI: 10.64898/2026.02.08.704659 PMID: 42465292

Rapid dynamics of dorsal raphe serotonin neurons regulate the strength of visual attention.

Lehnert J, Cha K, Forestell J, Yang K, Ma X, Shariff S, Britt JP, Khadra A, Cook EP, Krishnaswamy A

Nature communications2026Senior author

DOI: 10.1038/s41467-026-70658-y PMID: 41851109

Retinal glia regulate development of the circadian photoentrainment circuit.

Brown TW, Vilallongue N, Hales SC, Srikanta S, Rochon PL, Rangel Olguin AG, Waxman SB, Tufford A, Van Prooijen J, Krishnaswamy A, Cermakian N, Cayouette M

Cell reports2025

DOI: 10.1016/j.celrep.2025.116464 PMID: 41150857

Cadherin 4 assembles a family of color-preferring retinal circuits that respond to light offset.

Olguin AGR, Rochon PL, Theriault C, Brown T, Yao H, Cayouette M, Cook EP, Krishnaswamy A

Current biology : CB2025Senior author

DOI: 10.1016/j.cub.2025.02.008 PMID: 40081378

Endoplasmic reticulum stress-related deficits in calcium clearance promote neuronal dysfunction that is prevented by SERCA2 gene augmentation.

Shiga Y, Rangel Olguin AG, El Hajji S, Belforte N, Quintero H, Dotigny F, Alarcon-Martinez L, Krishnaswamy A, Di Polo A

Cell reports. Medicine2024

DOI: 10.1016/j.xcrm.2024.101839 PMID: 39615485

Autism-associated CHD8 controls reactive gliosis and neuroinflammation via remodeling chromatin in astrocytes.

Megagiannis P, Mei Y, Yan RE, Yuan L, Wilde JJ, Eckersberg H, Suresh R, Tan X, Chen H, Farmer WT, Cha K, Le PU, Catoire H, Rochefort D, Kwan T, Yee BA, Dion P, Krishnaswamy A, Cloutier JF, Stifani S, Petrecca K, Yeo GW, Murai KK, Feng G, Rouleau GA, Ideker T, Sanjana NE, Zhou Y

Cell reports2024

DOI: 10.1016/j.celrep.2024.114637 PMID: 39154337

ElecFeX is a user-friendly toolbox for efficient feature extraction from single-cell electrophysiological recordings.

Ma X, Miraucourt LS, Qiu H, Xu M, Cook EP, Krishnaswamy A, Sharif-Naeini R, Khadra A

Cell reports methods2024

DOI: 10.1016/j.crmeth.2024.100791 PMID: 38848714

Visual attention to features and space in mice using reverse correlation.

Lehnert J, Cha K, Halperin J, Yang K, Zheng DF, Khadra A, Cook EP, Krishnaswamy A

Current biology : CB2023Senior author

DOI: 10.1016/j.cub.2023.07.060 PMID: 37611588

The cell adhesion molecule Sdk1 shapes assembly of a retinal circuit that detects localized edges.

Rochon PL, Theriault C, Rangel Olguin AG, Krishnaswamy A

eLife2021Senior author

DOI: 10.7554/elife.70870 PMID: 34545809

The role of cortical neuromodulator dynamics in attention and ASD

SupervisorCIHR2026Fellowship: Canada Impact+ Research Training Awards - Postdoctoral

Principal investigators: Kelley, Craig

Keywords: Attention; Computation/Ai; In Vivo Calcium Imaging; Mouse; Neural Circuits; Optogenetics; Two-Photon Microscopy

$140,000

Probing Atypical Attentional Circuits in Fragile X Syndrome with High-Speed Voltage Imaging and Optogenetics

SupervisorCIHR2025Canada Postdoctoral Research Award (CPRA) program

Principal investigators: Brake, Niklas

Keywords: Attention; Fragile X Syndrome; Frontal-Sensory Feedback; Interneurons (Pv, Sst, Vip); Mouse Models; Optogenetics; Sensory Gain Control; Voltage Imaging

$140,000

A synthetic ligand-receptor platform to map and manipulate cellular interactions in intact nervous systems.

Co-investigatorCIHR2024Cat Gr: Develop./validation of new biomedical techniques/technolo.- General Pool

Principal investigators: Lefebvre, Julie L

Keywords: Cancer Neuroscience; Cell-Cell Interaction Reporter; Fluorescent Reporters, Opsins And Sensors; Neural Circuit Analysis; Neuron-Glia Interactions; Neurotechnology; Synthetic Biology; Trans-Synaptic Tracing Technology; Transgenic Mice; Viral Vector Transduction

$300,000

An atlas of cortical dynamics during visual attention and perception

Principal investigatorNSERC2024Discovery Grants Program - Individual

Principal investigators: Krishnaswamy, Arjun

Keywords: visual attention; optogenetics; mouse genetics; wide-field calcium imaging; two-photon calcium imaging; genetically encoded calcium indicators; reverse-correlation; visually guided behavior; chemogenetics; visual cortex

$54,000

Molecular Codes Assemble Visual Thalamic Circuits

Nominated PICIHR2022Project Grant

Principal investigators: Krishnaswamy, Arjun S

Keywords: Circuit Assembly; Electrophysiology; In Vivo Imaging; Molecular Recognition; Neural Circuits; Optogenetics; Retina; Synaptic Specificity; Two-Photon Calcium Imaging; Visual Thalamus

$952,425

Dorsal Raphe neuromodulation of visual circuit function, behavior, and ASD

Nominated PICIHR2022Project Grant

Principal investigators: Krishnaswamy, Arjun S

Keywords: Attention; Autism, Fragile X Syndrome; Dorsal Raphe; Fiber Photometry; In Vivo Two-Photon Imaging; Mice; Molecular-Genetics; Serotonin; Visual System; Visually Guided Behaviors

$872,100

Canada Research Chair - Tier 2

Nominated PICIHR2021Canada Research Chairs - CIHR Funded - Tier 2

Principal investigators: Krishnaswamy, Arjun S

Keywords: Crc

$500,000

Using ASD models to gain insight into serotonergic feedback during perceptual decsion making in mice

SupervisorCIHR2019Doctoral Research Award: Canada Graduate Scholarships

Principal investigators: Lehnert, Jonas

Keywords: Asd Mouse Models; Attention; Computational Modelling; Dorsal Raphe; Fiber Photometry; Genetically Encoded Calcium Indicators; Lateral Geniculate Nucleus; Neural Circuits; Optogenetics; Visually Guided Behavior

$105,000

Reverse engineering the neural circuits of perception

Principal investigatorSSHRC2019New Frontiers in Research Fund - Exploration

Principal investigators: Krishnaswamy, Arjun

Keywords: Neural Circuits; Single Cell Sequencing; Visual System; In Vivo Calcium imaging; Optogenetics; Spatial Light Modulation; Connectomics; Artificial Intelligence; Behavior

$273,175

The role of Sdk1 in the assembly and function of feature-detecting retinal circuits

SupervisorCIHR2018Doctoral Award - Frederick Banting and Charles Best Canada Graduate Scholarships

Principal investigators: Rochon, Pierre-Luc P

Keywords: Animal Behavior; Electrophysiology; Function Of Retinal Circuits; Histochemistry; Molecular Recognition; Neural Circuit Development

$105,000

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

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Arjun Krishnaswamy

Research

Latest papers

Latest funding

Spatial biases in visual feature representation of mouse dorsal lateral geniculate nucleus boutons.

TRACR: an anterograde transneuronal tracing system for genetic access across synapses and longitudinal circuit analysis.

Rapid dynamics of dorsal raphe serotonin neurons regulate the strength of visual attention.

Retinal glia regulate development of the circadian photoentrainment circuit.

Cadherin 4 assembles a family of color-preferring retinal circuits that respond to light offset.

Endoplasmic reticulum stress-related deficits in calcium clearance promote neuronal dysfunction that is prevented by SERCA2 gene augmentation.

Autism-associated CHD8 controls reactive gliosis and neuroinflammation via remodeling chromatin in astrocytes.

ElecFeX is a user-friendly toolbox for efficient feature extraction from single-cell electrophysiological recordings.

Visual attention to features and space in mice using reverse correlation.

The cell adhesion molecule Sdk1 shapes assembly of a retinal circuit that detects localized edges.

The role of cortical neuromodulator dynamics in attention and ASD

Probing Atypical Attentional Circuits in Fragile X Syndrome with High-Speed Voltage Imaging and Optogenetics

A synthetic ligand-receptor platform to map and manipulate cellular interactions in intact nervous systems.

An atlas of cortical dynamics during visual attention and perception

Molecular Codes Assemble Visual Thalamic Circuits

Dorsal Raphe neuromodulation of visual circuit function, behavior, and ASD

Canada Research Chair - Tier 2

Using ASD models to gain insight into serotonergic feedback during perceptual decsion making in mice

Reverse engineering the neural circuits of perception

The role of Sdk1 in the assembly and function of feature-detecting retinal circuits

Frequent collaborators

Michel Cayouette

Reza Sharif-Naeini

Kevin Petrecca

Stuart Trenholm

YANG ZHOU

Hong Chen

Adriana Di Polo

Jean-Francois Cloutier

Kevin Petrecca

Stefano Stifani

Nicolas Cermakian

Thomas Brown