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Neurophotonics

Hand-grasping and finger tapping induced similar functional near-infrared spectroscopy cortical responses
Author(s): Nasser H. Kashou; Brenna M. Giacherio; Ramzi W. Nahhas; Sudarshan R. Jadcherla
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Paper Abstract

Despite promising advantages such as low cost and portability of functional near-infrared spectroscopy (fNIRS), it has yet to be widely implemented outside of basic research. Specifically, fNIRS has yet to be proven as a standalone tool within a clinical setting. The objective of this study was to assess hemodynamic concentration changes at the primary and premotor motor cortices as a result of simple whole-hand grasping and sequential finger-opposition (tapping) tasks. These tasks were repeated over 3 days in a randomized manner. Ten healthy young adults (23.8±4.8  years) participated in the study. Quantitatively, no statistically significant differences were discovered between the levels of activation for the two motor tasks (p<0.05). Overall, the signals were consistent across all 3 days. The findings show that both finger-opposition and hand grasping can be used interchangeably in fNIRS for assessment of motor function which would be useful in further advancing techniques for clinical implementation.

Paper Details

Date Published: 15 June 2016
PDF: 9 pages
3(2) 025006 doi: 10.1117/1.NPh.3.2.025006
Published in: Neurophotonics Volume 3, Issue 2
Show Author Affiliations
Nasser H. Kashou, Wright State Univ. (United States)
Brenna M. Giacherio, Wright State Univ. (United States)
Ramzi W. Nahhas, Wright State Univ. (United States)
Sudarshan R. Jadcherla, Nationwide Children's Hospital (United States)
The Ohio State Univ. College of Medicine (United States)


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