The Role of Systemic Physiology in Individual Hemodynamic Responses Measured on the Head Due to Long-Term Stimulation Involving Colored Light Exposure and a Cognitive Task: An SPA-fNIRS Study [PDF]
Brain Sciences, 2022 In our previous investigations using systemic physiology augmented functional near-infrared spectroscopy (SPA-fNIRS) neuroimaging, we found larger variability between subjects in changes of cerebral hemodynamics and oxygenation induced by an intricate ...
Felix Scholkmann +2 more
doaj +5 more sources
Intersubject Variability in Cerebrovascular Hemodynamics and Systemic Physiology during a Verbal Fluency Task under Colored Light Exposure: Clustering of Subjects by Unsupervised Machine Learning [PDF]
Brain Sciences, 2022 There is large intersubject variability in cerebrovascular hemodynamic and systemic physiological responses induced by a verbal fluency task (VFT) under colored light exposure (CLE).
Hamoon Zohdi +3 more
doaj +5 more sources
Individual Differences in Hemodynamic Responses Measured on the Head Due to a Long-Term Stimulation Involving Colored Light Exposure and a Cognitive Task: A SPA-fNIRS Study [PDF]
Brain Sciences, 2021 When brain activity is measured by neuroimaging, the canonical hemodynamic response (increase in oxygenated hemoglobin ([O2Hb]) and decrease in deoxygenated hemoglobin ([HHb]) is not always seen in every subject.
Hamoon Zohdi +2 more
doaj +5 more sources
Color-dependent changes in humans during a verbal fluency task under colored light exposure assessed by SPA-fNIRS [PDF]
Scientific Reports, 2021 Light evokes robust visual and nonvisual physiological and psychological effects in humans, such as emotional and behavioral responses, as well as changes in cognitive brain activity and performance.
Hamoon Zohdi +4 more
doaj +6 more sources
Designing for calm: exploring the impact of colored light on autonomic regulation and anxiety in patients awaiting cataract surgery [PDF]
Frontiers in PsychologyObjectiveTo explore whether immersive colored light can be used as a design intervention to reduce preoperative anxiety and modulate autonomic nervous system activity in patients awaiting cataract surgery.BackgroundPreoperative anxiety is common and ...
Gilles Guerrier +6 more
doaj +3 more sources
Colored Light Exposure Ensues Chronotype-Based Responses: Evidence From QEEG Analysis. [PDF]
Physiol ResSummary Light spectra, an imperative zeitgeber, may differ in its chronobiological effects among chronotype ensuing differences in circadian pacesetting.
Vani V, Ojha P, Gadhvi MA, Dixit A.
europepmc +4 more sources
Effect of short-term colored-light exposure on cerebral hemodynamics and oxygenation, and systemic physiological activity. [PDF]
Neurophotonics, 2017 . There is not yet a comprehensive view of how the color of light affects the cerebral and systemic physiology in humans. The aim was to address this deficit through basic research.
Scholkmann F +4 more
europepmc +2 more sources
Colored Vision After Exposure to Excessive Light and After Cataract Extraction [PDF]
The American Journal of the Medical Sciences, 1898 n ...
H. Snellen
semanticscholar +3 more sources
Behavioural Brain ResearchColored light has important implications for human health and well-being, as well as for the aesthetics and function of various environments. In addition to its effects on visual function, colored light has significant effects on cognitive performance ...
Ursula Wolf +2 more
exaly +2 more sources
Impact of artificial colored lights on performance in working memory task
Acta PsychologicaThe contemporary lifestyle obligates exposure to artificially illuminated environments often with a variation in spectral composition of light. The wavelength of light, perceived as the color, differentially stimulates the short, medium, and long ...
Vakode Vani +3 more
doaj +2 more sources