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. 2016 Apr 20;10:174. doi: 10.3389/fnhum.2016.00174

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Copyright © 2016 Bediz, Oniz, Guducu, Ural Demirci, Ogut, Gunay, Cetinkaya and Ozgoren.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution and reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The demonstration of functional near infrared spectroscopy (fNIRS) sensor pad. Brain oxygenation was measured from 16 locations over the forehead area via fNIRS sensor (left side). The sensor pad has 4 light sources, 10 light detectors and 16 optodes (right side). Optodes that are located on the leftmost side of the forehead namely 1, 2, 3 and 4 denotes left prefrontal cortex (PFC), optodes that are centrally located as 7, 8, 9 and 10 denotes central PFC, and optodes that are located on the rightmost side as 13, 14, 15 and 16 denotes right PFC.