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Yang, Y. (author), Yao, Jun (author), Dewald, Julius (author), van der Helm, F.C.T. (author), Schouten, A.C. (author)
This paper introduces the Cross-frequency Amplitude Transfer Function (CATF), a model-free method for quantifying nonlinear stimulus-response interaction based on phase-locked amplitude relationship. The CATF estimates the amplitude transfer from input frequencies at stimulation signal to their harmonics/intermodulation at the response signal....
journal article 2020
document
Filatova, O.G. (author), Yang, Y. (author), Dewald, J.P.A. (author), Tian, Runfeng (author), Maceira-Elvira, Pablo (author), Takeda, Yusuke (author), Kwakkel, Gert (author), Yamashita, Okito (author), van der Helm, F.C.T. (author)
In hemiparetic stroke, functional recovery of paretic limb may occur with the reorganization of neural networks in the brain. Neuroimaging techniques, such as magnetic resonance imaging (MRI), have a high spatial resolution which can be used to reveal anatomical changes in the brain following a stroke. However, low temporal resolution of MRI...
journal article 2018
document
Tian, Runfeng (author), Yang, Y. (author), van der Helm, F.C.T. (author), Dewald, J.P.A. (author)
The human nervous system is an ensemble of connected neuronal networks. Modeling and system identification of the human nervous system helps us understand how the brain processes sensory input and controls responses at the systems level. This study aims to propose an advanced approach based on a hierarchical neural network and non-linear...
journal article 2018
document
Yang, Y. (author), Dewald, J.P.A. (author), van der Helm, F.C.T. (author), Schouten, A.C. (author)
Neural coupling between the central nervous system and the periphery is essential for the neural control of movement. Corticomuscular coherence is a popular linear technique to assess synchronised oscillatory activity in the sensorimotor system. This oscillatory coupling originates from ascending somatosensory feedback and descending motor...
journal article 2017
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Yang, Y. (author), Solis Escalante, T. (author), van de Ruit, M.L. (author), van der Helm, F.C.T. (author), Schouten, A.C. (author)
Coupling between cortical oscillations and muscle activity facilitates neuronal communication during motor control. The linear part of this coupling, known as corticomuscular coherence, has received substantial attention, even though neuronal communication underlying motor control has been demonstrated to be highly nonlinear. A full assessment...
journal article 2016
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Yang, Y. (author), Solis Escalante, T. (author), van der Helm, F.C.T. (author), Schouten, A.C. (author)
Objective: This paper introduces a generalized coherence framework for detecting and characterizing nonlinear interactions in the nervous system, namely cross-spectral coherence (CSC). CSC can detect different types of nonlinear interactions including harmonic and intermodulation coupling as present in static nonlinearities and also subharmonic...
journal article 2016
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