Research Papers

Hand-grasping and finger tapping induced similar functional near-infrared spectroscopy cortical responses

[+] Author Affiliations
Nasser H. Kashou, Brenna M. Giacherio

Wright State University, Biomedical, Industrial and Human Factors Engineering, 3640 Colonel Glenn Highway, Dayton, Ohio 45435, United States

Ramzi W. Nahhas

Wright State University, Department of Community Health, 3123 Research Boulevard, Kettering, Ohio 45420, United States

Wright State University, Department of Psychiatry, 3123 Research Boulevard, Kettering, Ohio 45420, United States

Sudarshan R. Jadcherla

The Research Institute at Nationwide Children’s Hospital, Innovative Research Program in Neonatal and Infant Feeding Disorders, 700 Children's Drive, Columbus, Ohio 43205, United States

The Ohio State University College of Medicine, Division of Neonatology, Department of Pediatrics, 370 W 9th Avenue, Columbus, Ohio 43210, United States

Neurophoton. 3(2), 025006 (Jun 15, 2016). doi:10.1117/1.NPh.3.2.025006
History: Received October 15, 2015; Accepted December 8, 2015
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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.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Nasser H. Kashou ; Brenna M. Giacherio ; Ramzi W. Nahhas and Sudarshan R. Jadcherla
"Hand-grasping and finger tapping induced similar functional near-infrared spectroscopy cortical responses", Neurophoton. 3(2), 025006 (Jun 15, 2016). ; http://dx.doi.org/10.1117/1.NPh.3.2.025006


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