Cognition is impaired in many neuropsychiatric disorders and the quality of life is severely affected. A key mechanism for sculpting communication patterns between large scale brain networks that underpin cognition and its breakdown in neuropsychiatric disorders is synchronous electrophysiological rhythms. According to a study, light has a wide range of effects on the synchronization of circadian rhythms with the external environment and it is found that light influences the urinary excretion of melatonin and controls sleep. Autonomic and neuroendocrine responses such as feedback regulation and the involvement of the immune system have also been shown to influence the circadian rhythm. There have been major advances in our understanding of the retinal photoreceptors mediating these non image forming light responses over the last two decades, as well as the neural pathways and molecular mechanisms that generate and energize circadian rhythms in the phase of the light dark LD cycle. Our understanding of the mechanisms by which lighting impacts cognitive processes, on the other hand, is more misleading. Lights effect on different cognitive processes is complex. Indirect effects may also arise due to disrupted circadian rhythm, in addition to the direct effects of light on consciousness. In studies that rely on various cognitive and sensory processes, different assays have been used, which can also contribute to variable outcomes. The physiological basis of these responses and the influence of various lighting environments on cognitive processes are summarized here, taking into account their effects on circadian rhythms, sleep and arousal. Uthirakumar Devaraj | Elumalai Balamurugan "Circadian Rhythm: Enhancing Brain Synchronization and Cognition" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-6 , October 2021, URL: https://www.ijtsrd.com/papers/ijtsrd46394.pdf Paper URL : https://www.ijtsrd.com/biological-science/neurobiology/46394/circadian-rhythm-enhancing-brain-synchronization-and-cognition/uthirakumar-devaraj
International Journal of Trend in Scientific Research and Development (IJTSRD)
Volume 5 Issue 6, September-October 2021 Available Online: www.ijtsrd.com e-ISSN: 2456 – 6470
@ IJTSRD | Unique Paper ID – IJTSRD46394 | Volume – 5 | Issue – 6 | Sep-Oct 2021
Page 315
Circadian Rhythm: Enhancing Brain
Synchronization and Cognition
Uthirakumar Devaraj, Elumalai Balamurugan
Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Tamil Nadu, India
ABSTRACT
Cognition is impaired in many neuropsychiatric disorders and the
quality of life is severely affected. A key mechanism for sculpting
communication patterns between large-scale brain networks that
underpin cognition and its breakdown in neuropsychiatric disorders is
synchronous electrophysiological rhythms. According to a study,
light has a wide range of effects on the synchronization of circadian
rhythms with the external environment and it is found that light
influences the urinary excretion of melatonin and controls sleep.
Autonomic and neuroendocrine responses such as feedback
regulation and the involvement of the immune system have also been
shown to influence the circadian rhythm. There have been major
advances in our understanding of the retinal photoreceptors
mediating these non-image-forming light responses over the last two
decades, as well as the neural pathways and molecular mechanisms
that generate and energize circadian rhythms in the phase of the
light/dark (LD) cycle. Our understanding of the mechanisms by
which lighting impacts cognitive processes, on the other hand, is
more misleading. Light's effect on different cognitive processes is
complex. Indirect effects may also arise due to disrupted circadian
rhythm, in addition to the direct effects of light on consciousness. In
studies that rely on various cognitive and sensory processes, different
assays have been used, which can also contribute to variable
outcomes. The physiological basis of these responses and the
influen