Scholkmann, Felix; Zohdi, Hamoon; Wolf, Ursula (2022). 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. Brain Sciences, 12(5) MDPI 10.3390/brainsci12050597
|
Text
brainsci-12-00597-v3.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (2MB) | Preview |
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 experimental paradigm involving colored light exposure and a cognitive task. We aimed to investigate the role the activity of the systemic physiology has on individual variations in the fNIRS data. Thirty-two healthy subjects (17 female, 15 male and age: 25.5 ± 4.3 years) were exposed to blue and red light for 9 min (colored light exposure, CLE) while performing a verbal fluency task (VFT). We found that (i), at the group level, the visual cortex showed a stronger deoxyhemoglobin concentration response during blue light exposure than during red light exposure, and (ii) this relationship was influenced by individually different baseline blood pressure values. Furthermore, we found other correlations between changes in fNIRS signals and changes in systemic physiology. Our study demonstrates the usefulness and necessity of the SPA-fNIRS approach to gain insights into the individual variability of hemodynamic responses measured with fNIRS, especially in the case of an intricate experimental paradigm (i.e., CLE-VFT) as used in our study.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > Medical Education > Institute of Complementary and Integrative Medicine (IKIM) |
UniBE Contributor: |
Scholkmann, Felix Vishnu, Zohdi, Hamoon, Wolf, Ursula |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
2076-3425 |
Publisher: |
MDPI |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
30 May 2022 10:20 |
Last Modified: |
02 Mar 2023 23:36 |
Publisher DOI: |
10.3390/brainsci12050597 |
PubMed ID: |
35624984 |
Uncontrolled Keywords: |
SPA-fNIRS colored light exposure fNIRS functional near-infrared spectroscopy multitask paradigm systemic physiology augmented functional near-infrared spectroscopy verbal fluency task |
BORIS DOI: |
10.48350/170334 |
URI: |
https://boris.unibe.ch/id/eprint/170334 |
Actions (login required)
 |
Edit item |