Abhilash Lakshman, Ph.D.
Postdoctoral Fellow. Gill Instiutute for Neuroscience and Department of Biology - Indiana University Bloomington .
“Why this absurd concern with clocks, my friend?” - Walter de la Mare
As I pursue faculty positions, my goal is to build a research program that addresses fundamental open questions at the intersection of circadian biology, sleep, and metabolism, particularly how timekeeping across central and peripheral tissues is integrated and functionally coordinated. Complementing this, I am deeply interested in how evolutionary and ecological forces have sculpted sleep/wake timing, bridging neuroscience with a broader biological context.
Almost every organism on the planet exhibits rhythms in physiology, behavior, and metabolism on a 24-h basis. These rhythms are driven by networks in the brain that are called circadian clocks. Importantly, these clocks have a speed that is slightly different from 24-h. Therefore, our brains must sense cues in the environment and reset our clocks to an exactly 24-h schedule every day - a process called entrainment - a first rate biological problem.
One of the most common manifestations of circadian clock regulated behaviors is something all of us experience - the daily rhythms in sleep and wakefulness. Most of us are familiar with the physical discomfort and mental disarray that accompanies mistimed sleep. Naturally, one can imagine the importance of understanding mechanisms in the brain that sense and adjust to a 24-h day, thereby ensuring appropriate timing and amounts of sleep.
My research uses behavioral methods, mathematical models, and simple yet powerful computational and statistical tools to understand mechanisms underlying appropriate timing of sleep. See my projects page for more details on my research and the bigger questions I am interested in asking.
news
| Apr 21, 2026 | I am looking to join a dynamic Biology department as an Assistant Professor, where my group will combine behavioral neurogenetics, mathematical modeling, and open-source statistical methods to build a unifying framework for the fundamental biological principles governing the timing of sleep. |
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| Feb 13, 2026 | Our recent paper describing sleep states in flies is now online. Read more about it on IU news. |
| Jan 20, 2026 | Check out this short video on our work and how we use computation and experiments to address when and how much we sleep. |
selected publications
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Recognition of distinct sleep states in Drosophila uncovers previously obscured homeostatic and circadian control of sleepCurrent Biology, 2026 - Parametric effects of light acting via multiple photoreceptors contribute to circadian entrainment in Drosophila melanogasterProceedings of the Royal Society B, 2023
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A two-process model of Drosophila sleep reveals an inter-dependence between circadian clock speed and the rate of sleep pressure decaySLEEP, 2024 -
Homeostatic control of deep sleep and molecular correlates of sleep pressure in DrosophilaeLife, 2023