Rate My Professor Ramesh Rajan

Professor Ramesh Rajan is a Professor in the Department of Physiology at Monash University, where he heads the Sensory Information and the Brain Laboratory in the Monash Biomedicine Discovery Institute. His research centers on sensory processing in the brain, predicated on the hypothesis that a significant portion of our internal lives and interactions with the world are guided by sensory inputs from hearing, sight, touch, smell, taste, and other senses. Rajan investigates how brain disorders alter this processing, leading to distorted perceptions that underlie cognitive, motor, memory, and emotional deficits. Key research areas include models of traumatic brain injury (TBI), where sensory processing disruptions occur even without visible damage on imaging, affecting appropriate behavioral responses such as movement and learning. He also examines speech processing in noisy environments for individuals with Huntington's Disease, Multiple Sclerosis, Autism Spectrum Disorders, and Parkinson's Disease, focusing on how the brain selects relevant information and suppresses distractions using memory and prior experience.

Rajan's laboratory utilizes animal models to study neural mechanisms of sensory selection and integrates findings with human studies on brain disorders. Notable projects involve neuroprosthetic devices for vision restoration in the blind and the cortical underpinnings of TBI. He has been Chief Investigator on several NHMRC-funded projects, including "Neural circuits for residual vision after damage to striate cortex" (2017-2020), "Neural Mechanisms of Optimal Sensory Integration" (2014-2017), and "Sensory cortex processing changes underlying brain and behaviour deficits caused by traumatic brain injury" (2012-2015). Selected publications include "Temporal response patterns of Layer 4 rat barrel cortex neurons across various naturalistic whisker motions" (Tang, Flegg & Rajan, 2024, PLoS ONE), "Discriminating spatialised speech in complex environments in multiple sclerosis" (Iva et al., 2023, Cortex), "Normative Data for Single-Letter Controlled Oral Word Association Test in Older White Australians and Americans, African-Americans, and Hispanic/Latinos" (Zhou et al., 2023, Journal of Alzheimer's Disease Reports), and "Temporal activity patterns of layer II and IV rat barrel cortex neurons in healthy and injured conditions" (Burns & Rajan, 2022, Physiological Reports). In recognition of his contributions to education, particularly the development of virtual physiology laboratories, Rajan co-received the Dean's Award for Excellence in Education - Innovation in Learning and Teaching and the Vice-Chancellor's Excellence Award for Innovation in Learning and Teaching in 2023. His work has garnered over 6,000 citations, reflecting significant impact in the field.