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The hemodynamic changes in the human prefrontal cortex during the flanker and Simon tasks: An fNIRS study
Zhen Yuan; Xiaohong Lin
2016
Conference NameConference on Clinical and Translational Neurophotonics; Neural Imaging and Sensing; and Optogenetics and Optical Manipulation
Source PublicationCLINICAL AND TRANSLATIONAL NEUROPHOTONICS; NEURAL IMAGING AND SENSING; AND OPTOGENETICS AND OPTICAL MANIPULATION
Volume9690
Conference DateFEB 13-16, 2016
Conference PlaceSan Francisco, CA
Abstract

Functional near-infrared spectroscopy (fNIRS) is a low-cost, portable and noninvasive functional neuroimaging technique by measuring the change in the concentrations of oxyhemoglobin (HbO) and deoxyhemoglobin (HbR). The aim of present study is to reveal the different brain activity pattern of adult subjects during the completion of flanker and Simon tasks underlying the congruent and incongruent test conditions so as to identify the basic neural mechanism of inhibitory control in executive function. In the study, we utilized fNIRS to explore the hemodynamic changes in the prefrontal cortex and our imaging results suggested that there were notable differences for the hemodynamic responses between the flank and Simon task. A striking difference is that for the flank task, the increase in the HbO concentration during incongruent trials was larger than that during congruent trials for the channels across middle frontal cortex while for the Simon task, the hemodynamic response was stronger for the congruent condition compared to that from the incongruent one. Interestingly, the hemodynamic response exhibited similar task-related activation in the superior frontal cortex for both the congruent and incongruent conditions. Further, independent component analysis showed that different brain activation patterns were identified to accomplish different inhibitory control tasks underlying the congruent and incongruent conditions.

KeywordFnirs Prefrontal Cortex Executive Function
DOI10.1117/12.2211243
Indexed ByCPCI
Language英语
WOS Research AreaNeurosciences & Neurology ; Optics ; Physics ; Radiology, Nuclear Medicine & Medical Imaging
WOS SubjectNeurosciences & Neurology ; Optics ; Physics ; Radiology, Nuclear Medicine & Medical Imaging
WOS IDWOS:000383224700029
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Document TypeConference paper
CollectionFaculty of Health Sciences
INSTITUTE OF COLLABORATIVE INNOVATION
AffiliationUniversity of Macau, Bioimaging Core, Faculty of Health Sciences, Macau SAR, China
First Author AffilicationFaculty of Health Sciences
Recommended Citation
GB/T 7714
Zhen Yuan,Xiaohong Lin. The hemodynamic changes in the human prefrontal cortex during the flanker and Simon tasks: An fNIRS study[C],2016.
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