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Peirson

Stuart Peirson

BSc, PhD


Professor of Circadian Neuroscience

Circadian Neuroscience

Research Summary

My research focuses on how light regulates physiology and behaviour, with a particular interest in how our modern artificial light environment may disrupt these processes. The retina contains photoreceptors that mediate the tasks of vision as well the regulation of circadian rhythms, sleep and alertness. The central aim of my work is to understand how light information is transmitted from photoreceptor to brain to drive these responses. Research in my lab depends upon molecular biology and genomics, as well as optogenetics and chemogenetics. We also study behavioural responses including circadian rhythms, sleep and cognitive function. Photobiology, statistics and bioinformatics critically underpin our work.

Sources of Funding

Biography

I am Professor of Circadian Neuroscience and Group Leader in the fundamental neuroscience theme of the Sleep and Circadian Neuroscience Institution (SCNi). After completing my PhD in Neuroscience at the Institute of Ophthalmology UCL I moved to Imperial College to work as a postdoc. During this time I also acted as technical supervisor for the quantitative real-time PCR (qPCR) facility at Charing Cross Hospital. During my subsequent work, I contributed to the identification of the melanopsin pRGC system in humans as well as the characterisation of melanopsin signalling pathways. I was appointed as a Lecturer at Imperial College in 2005 before moving to the University of Oxford in 2006. My work has continued to focus upon characterising the signalling pathways mediating the effects of light on physiology and behaviour, with the aim of identifying novel targets for the regulation of circadian rhythms and sleep. 

Key publications

Dim light in the evening causes coordinated realignment of circadian rhythms, sleep, and short-term memory

Journal article

Tam SKE. et al, (2021), Proceedings of the National Academy of Sciences of the United States of America, 118

Meta-analysis of transcriptomic datasets identifies genes enriched in the mammalian circadian pacemaker

Journal article

Brown LA. et al, (2017), Nucleic Acids Research, 45, 9860 - 9873

Melanopsin Regulates Both Sleep-Promoting and Arousal-Promoting Responses to Light

Journal article

Pilorz V. et al, (2016), Plos Biology, 14

Isoforms of Melanopsin Mediate Different Behavioral Responses to Light

Journal article

Jagannath A. et al, (2015), Current Biology, 25, 2430 - 2434

XThe CRTC1-SIK1 pathway regulates entrainment of the circadian clock

Journal article

Jagannath A. et al, (2013), Cell, 154

Recent publications

Molecular correlates of sleep deprivation in the mouse brain identified by meta-analysis of microarray data

Journal article

Abdalla OHMH. et al, (2026), Neurobiology of Sleep and Circadian Rhythms, 21

Evaluation of the Digital Ventilated Cage® system for circadian phenotyping

Journal article

Tir S. et al, (2025), Scientific Reports, 15

Analgesia through FKBP51 inhibition at disease onset confers lasting relief from sensory and emotional chronic pain symptoms

Journal article

Hestehave S. et al, (2025), Proceedings of the National Academy of Sciences of the United States of America, 122

Deficient synaptic neurotransmission results in a persistent sleep-like cortical activity across vigilance states in mice

Journal article

Guillaumin MCC. et al, (2025), Current Biology, 35, 1716 - 1729.e3

Hypotheses in light detection by vertebrate ancient opsin in the bird brain

Journal article

Stevenson TJ. et al, (2025), Journal of Neuroendocrinology