作者: Ségolène M.R. Guérin , Marion A. Vincent , Costas I. Karageorghis , Yvonne N. Delevoye-Turrell
DOI: 10.1016/J.NEUROIMAGE.2020.117597
关键词:
摘要: Abstract People are able to modify the spontaneous pace of their actions interact with environment and others. This ability is underpinned by high-level cognitive functions but little known in regard brain areas that underlie such temporal control. A salient practical issue current neuroimaging techniques (e.g., EEG, fMRI) extremely sensitive movement, which renders challenging any investigation activity realm whole-body motor paradigms. Within last decade, noninvasive imaging method functional near-infrared spectroscopy (fNIRS) has become reference tool for experimental paradigms due its tolerance motion artefacts. In present study, we used a continuous-wave fNIRS system record prefrontal hemodynamic responses 16 participants, while they performed spatial-tapping task varying complexity externally-paced tempi (i.e., 300 ms, 500 1200 ms). To discriminate between physiological noise cerebral meaningful signals, data heart respiratory rates) were recorded so frequency bands signals could be regressed from data. Particular attention was taken control precise position optodes cranio-cerebral correlates NIR channels throughout session. Results indicated fast pacing relied on greater whereas moving at close-to-spontaneous placed heavier load posterior processes. These results provide new insight concerning role frontal modulating voluntary behaviors.