TY - GEN
T1 - An fNIRS Study on Standing Concurrent with Working Memory Task and Sensory Manipulation
AU - Baradaran, Yasaman
AU - Rojas, Raul Fernandez
AU - Sousani, Maryam
AU - Goecke, Roland
AU - Ghahramani, Maryam
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - We investigated the impact of working memory (WM) load and sensory input reduction on prefrontal cortex (PFC) activity during standing in healthy younger individuals. We employed n-back tests to manipulate WM demand, while participants stood on foam or firm surfaces, to investigate sensory input reduction. Using an fNIRS device, we compared whole PFC activity, lateralisation index (LI), and activity per channel among different balance tests. While we found no significant differences in whole PFC activity and LI, the right DLPFC shows significant increased activation in response to WM load compared to sensory input reduction. Moreover, left DLPFC resources may not be heavily involved in WM during standing, and the left DLPFC's engagement remains unaffected by postural balance challenges in the presence of WM load. Our study contributes to understanding the PFCrole in postural balance and may have implications for rehabilitating and intervening in balance disorders.
AB - We investigated the impact of working memory (WM) load and sensory input reduction on prefrontal cortex (PFC) activity during standing in healthy younger individuals. We employed n-back tests to manipulate WM demand, while participants stood on foam or firm surfaces, to investigate sensory input reduction. Using an fNIRS device, we compared whole PFC activity, lateralisation index (LI), and activity per channel among different balance tests. While we found no significant differences in whole PFC activity and LI, the right DLPFC shows significant increased activation in response to WM load compared to sensory input reduction. Moreover, left DLPFC resources may not be heavily involved in WM during standing, and the left DLPFC's engagement remains unaffected by postural balance challenges in the presence of WM load. Our study contributes to understanding the PFCrole in postural balance and may have implications for rehabilitating and intervening in balance disorders.
KW - cerebral haemodynamics
KW - cortical oxygenation
KW - Dual-task
KW - postural control
KW - working memory
UR - http://www.scopus.com/inward/record.url?scp=85203374621&partnerID=8YFLogxK
UR - https://ieeexplore.ieee.org/xpl/conhome/10635099/proceeding
UR - https://biomedicalimaging.org/2024/
U2 - 10.1109/ISBI56570.2024.10635706
DO - 10.1109/ISBI56570.2024.10635706
M3 - Conference contribution
AN - SCOPUS:85203374621
T3 - Proceedings - International Symposium on Biomedical Imaging
SP - 1
EP - 5
BT - IEEE International Symposium on Biomedical Imaging, ISBI 2024 - Conference Proceedings
A2 - S. Nikita, Konstantina
A2 - Davatzikos, Christos
PB - IEEE, Institute of Electrical and Electronics Engineers
T2 - 21st IEEE International Symposium on Biomedical Imaging, ISBI 2024
Y2 - 27 May 2024 through 30 May 2024
ER -