We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Brain Cortical Activation during Imagining of the Wrist Movement Using Functional Near Infrared Spectroscopy (fNIRS).
- Authors
Jalalvandi, Maziar; Alam, Nader Riyahi; Sharini, Hamid; Hashemi, Hasan; Nadimi, Mohadeseh
- Abstract
Background: fNIRS is a useful tool designed to record the changes in the density of blood's oxygenated hemoglobin (oxyHb) and deoxygenated hemoglobin (deoxyHb) molecules during brain activity. This method has made it possible to evaluate the hemodynamic changes of the brain during neuronal activity in a completely non-aggressive manner. Objective: The present study has been designed to investigate and evaluate the brain cortex activities during imagining of the execution of wrist motor tasks by comparing fMRI and fNIRS imaging methods. Material and Methods: This novel observational Optical Imaging study aims to investigate the brain motor cortex activity during imagining of the right wrist motor tasks in vertical and horizontal directions. To perform the study, ten healthy young right-handed volunteers were asked to think about right-hand movements in different directions according to the designed movement patterns. The required data were collected in two wavelengths, including 845 and 763 nanometers using a 48 channeled fNIRS machine. Results: Analysis of the obtained data showed the brain activity patterns during imagining of the execution of a movement are formed in various points of the motor cortex in terms of location. Moreover, depending on the direction of the movement, activity plans have distinguishable patterns. The results showed contralateral M1 was mainly activated during imagining of the motor cortex (p<0.05). Conclusion: The results of our study showed that in brain imaging, it is possible to distinguish between patterns of activities during wrist motion in different directions using the recorded signals obtained through near-infrared Spectroscopy. The findings of this study can be useful in further studies related to movement control and BCI.
- Subjects
NEAR infrared spectroscopy; WRIST; MOTOR cortex; DEOXYHEMOGLOBIN; BRAIN imaging; OPTICAL images
- Publication
Journal of Biomedical Physics & Engineering, 2021, Vol 11, Issue 5, p583
- ISSN
2251-7200
- Publication type
Article
- DOI
10.31661/jbpe.v0i0.1051