https://www.spiedigitallibrary.org/journals/Neurophotonics/volume-4/issue-4/045003/Neurofeedback-induced-facilitation-of-the-supplementary-motor-area-affects-postural/10.1117/1.NPh.4.4.045003.full?SSO=1
Hiroaki Fujimoto;
Masahito Mihara;
Noriaki Hattori;
Megumi Hatakenaka;
Hajime Yagura;
Teiji Kawano;
Ichiro Miyai;
Hideki Mochizuki;
Abstract
Near-infrared
spectroscopy-mediated neurofeedback (NIRS-NFB) is a promising
therapeutic intervention for patients with neurological diseases.
Studies have shown that NIRS-NFB can facilitate task-related cortical
activation and induce task-specific behavioral changes. These findings
indicate that the effect of neuromodulation depends on local cortical
function. However, when the target cortical region has multiple
functions, our understanding of the effects is less clear. This is true
in the supplementary motor area (SMA), which is involved both in
postural control and upper-limb movement. To address this issue, we
investigated the facilitatory effect of NIRS SMA neurofeedback on
cortical activity and behavior, without any specific task. Twenty
healthy individuals participated in real and sham neurofeedback. Balance
and hand dexterity were assessed before and after each NIRS-NFB
session. We found a significant interaction between assessment periods
(pre/post) and condition (real/sham) with respect to balance as assessed
by the center of the pressure path length but not for hand dexterity as
assessed by the 9-hole peg test. SMA activity only increased during
real neurofeedback. Our findings indicate that NIRS-NFB itself has the
potential to modulate focal cortical activation, and we suggest that it
be considered a therapy to facilitate the SMA for patients with postural
impairment.
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Hiroaki Fujimoto,
Masahito Mihara,
Noriaki Hattori,
Megumi Hatakenaka,
Hajime Yagura,
Teiji Kawano,
Ichiro Miyai,
Hideki Mochizuki,
"Neurofeedback-induced facilitation of the supplementary motor area affects postural stability," Neurophotonics 4(4), 045003 (10 November 2017). http://dx.doi.org/10.1117/1.NPh.4.4.045003
Submission: Received 22 May 2017; Accepted 16 October 2017
Submission: Received 22 May 2017; Accepted 16 October 2017
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