Effect of Light on Cognitive Function During a Stroop Task Using Functional Near-Infrared Spectroscopy

Abstract

Light modulates human brain function through its effect on circadian rhythms, which are related to several human behavioral and physiological processes. Functional near-infrared spectroscopy (fNIRS) is a noninvasive optical neuroimaging technique used for recording brain activation during task performance. This study aimed to investigate the effects of light on cognitive function, particularly in the prefrontal cortex using fNIRS. The effect of light on cognitive modulation was analyzed using the Stroop task, which was performed on 30 participants under three different light conditions (color temperature 4500 K, 2500 K, and none). The behavioral results indicated that light conditions can easily and effectively modulate the performance of tasks based on the feedback, including the response time and accuracy. fNIRS showed hemodynamic changes in the bilateral dorsolateral prefrontal cortices, and the activated brain regions varied under different light conditions. Moreover, light may be regarded as a safe, effective, inexpensive, and accessible tool for modulating human cognitive function.

A Breakthrough in Color‐Tunable All‐Fluorescent White OLEDs through the Cooperation Between a New Blue HLCT Fluorophore and a Long‐Wavelength TADF Emitter

“…It is known that light has a significant impact on the circadian rhythm, hormone secretion, mood, attention, alertness and even cognitive ability through the non‐visual effect on the human body. [ 23 ] CT‐WOLED, as a distinctive lighting technique, holds great potential in the healthy lighting market. Currently, single‐cell CT‐WOLEDs with voltage‐dependent tunable colors can be regarded as a simple and effective route, but it is difficult to achieve a win‐win situation in terms of both high EL efficiency and large CCT span.…”

Penggunaan Stroop Test di Bidang Kesehatan

“…Bahkan proses ini lebih rumit mengikuti tahapan dalam jejaring sel neuron di otak (Banich, 2019). Penelitian dengan Stroop test kian menarik dengan munculnya berbagai alat deteksi berteknologi tinggi yang secara khusus mampu mencitrakan bagian-bagian otak serta fungsinya, seperti functional magnetic resonance imaging (fMRI) (Song & Hakoda, 2015) atau functional near-infrared spectroscopy (fNIRS) (Yuan et al, 2021).…”

“…Uji Penggunaan Stroop test makin berkembang seiring dengan banyaknya studi di bidang neurosains untuk mengungkap fungsi dan kerja otak. Perkembangan alat pencitraan otak seperti fMRI dan fNIRS mempermudah para ahli menganalisa respon otak dengan berbagai stimulus yang diberikan (Song & Hakoda, 2015) (Yuan et al, 2021).…”

A New Theranostic Platform Against Gram‐Positive Bacteria Based on Near‐Infrared‐Emissive Aggregation‐Induced Emission Nanoparticles

“…[19] AIEgens, nonemissive in the solution state, become strongly emissive upon aggregation due to the restriction of energy dissipation and intramolecular motions, for example, when binding to certain biomolecules. [20][21][22] It integrates diagnosis and therapy into one single framework, allowing simultaneous optical imaging and phototherapy. In terms of fluorescence imaging, AIEgens with emission in the second near-infrared wavelength range (NIR-II, 1000-1700 nm) have features of deep penetration, minimal photo-damage to biological structure, decreased tissue scattering, and diminished tissue autofluorescence.…”