Corticokinematic coherence mainly reflects movement-induced proprioceptive feedback

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Corticokinematic coherence mainly reflects movement-induced proprioceptive feedback. / Bourguignon, Mathieu; Piitulainen, Harri; De Tiege, Xavier; Jousmaki, Veikko; Hari, Riitta.

In: NeuroImage, Vol. 106, 2015, p. 382-390.

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@article{8b4e4f86c1e94bde992d58e5119c18f1,
title = "Corticokinematic coherence mainly reflects movement-induced proprioceptive feedback",
abstract = "Corticokinematic coherence (CKC) reflects coupling between magnetoencephalographic (MEG) signals and hand kinematics, mainly occurring at hand movement frequency (F0) and its first harmonic (F1). Since CKC can be obtained for both active and passive movements, it has been suggested to mainly reflect proprioceptive feedback to the primary sensorimotor (SM1) cortex. However, the directionality of the brain–kinematics coupling has not been previously assessed and was thus quantified in the present study by means of renormalized partial directed coherence (rPDC).MEG data were obtained from 15 subjects who performed right index-finger movements and whose finger was, in another session, passively moved, with or without tactile input. Four additional subjects underwent the same task with slowly varying movement pace, spanning the 1–5 Hz frequency range. The coupling between SM1 activity recorded with MEG and finger kinematics was assessed with coherence and rPDC.In all conditions, the afferent rPDC spectrum, which resembled the coherence spectrum, displayed higher values than the efferent rPDC spectrum. The afferent rPDC was 37{\%} higher when tactile input was present, and it was at highest at F1 of the passive conditions; the efferent rPDC level did not differ between conditions. The apparent latency for the afferent input, estimated within the framework of the rPDC analysis, was 50–100 ms.The higher directional coupling between hand kinematics and SM1 activity in afferent than efferent direction strongly supports the view that CKC mainly reflects movement-related somatosensory proprioceptive afferent input to the contralateral SM1 cortex.",
keywords = "Kinematics, Human brain, Magnetoencephalography, Proprioception, Sensorimotor cortex, Partial directed coherence, Movement",
author = "Mathieu Bourguignon and Harri Piitulainen and {De Tiege}, Xavier and Veikko Jousmaki and Riitta Hari",
year = "2015",
doi = "10.1016/j.neuroimage.2014.11.026",
language = "English",
volume = "106",
pages = "382--390",
journal = "NeuroImage",
issn = "1053-8119",

}

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TY - JOUR

T1 - Corticokinematic coherence mainly reflects movement-induced proprioceptive feedback

AU - Bourguignon, Mathieu

AU - Piitulainen, Harri

AU - De Tiege, Xavier

AU - Jousmaki, Veikko

AU - Hari, Riitta

PY - 2015

Y1 - 2015

N2 - Corticokinematic coherence (CKC) reflects coupling between magnetoencephalographic (MEG) signals and hand kinematics, mainly occurring at hand movement frequency (F0) and its first harmonic (F1). Since CKC can be obtained for both active and passive movements, it has been suggested to mainly reflect proprioceptive feedback to the primary sensorimotor (SM1) cortex. However, the directionality of the brain–kinematics coupling has not been previously assessed and was thus quantified in the present study by means of renormalized partial directed coherence (rPDC).MEG data were obtained from 15 subjects who performed right index-finger movements and whose finger was, in another session, passively moved, with or without tactile input. Four additional subjects underwent the same task with slowly varying movement pace, spanning the 1–5 Hz frequency range. The coupling between SM1 activity recorded with MEG and finger kinematics was assessed with coherence and rPDC.In all conditions, the afferent rPDC spectrum, which resembled the coherence spectrum, displayed higher values than the efferent rPDC spectrum. The afferent rPDC was 37% higher when tactile input was present, and it was at highest at F1 of the passive conditions; the efferent rPDC level did not differ between conditions. The apparent latency for the afferent input, estimated within the framework of the rPDC analysis, was 50–100 ms.The higher directional coupling between hand kinematics and SM1 activity in afferent than efferent direction strongly supports the view that CKC mainly reflects movement-related somatosensory proprioceptive afferent input to the contralateral SM1 cortex.

AB - Corticokinematic coherence (CKC) reflects coupling between magnetoencephalographic (MEG) signals and hand kinematics, mainly occurring at hand movement frequency (F0) and its first harmonic (F1). Since CKC can be obtained for both active and passive movements, it has been suggested to mainly reflect proprioceptive feedback to the primary sensorimotor (SM1) cortex. However, the directionality of the brain–kinematics coupling has not been previously assessed and was thus quantified in the present study by means of renormalized partial directed coherence (rPDC).MEG data were obtained from 15 subjects who performed right index-finger movements and whose finger was, in another session, passively moved, with or without tactile input. Four additional subjects underwent the same task with slowly varying movement pace, spanning the 1–5 Hz frequency range. The coupling between SM1 activity recorded with MEG and finger kinematics was assessed with coherence and rPDC.In all conditions, the afferent rPDC spectrum, which resembled the coherence spectrum, displayed higher values than the efferent rPDC spectrum. The afferent rPDC was 37% higher when tactile input was present, and it was at highest at F1 of the passive conditions; the efferent rPDC level did not differ between conditions. The apparent latency for the afferent input, estimated within the framework of the rPDC analysis, was 50–100 ms.The higher directional coupling between hand kinematics and SM1 activity in afferent than efferent direction strongly supports the view that CKC mainly reflects movement-related somatosensory proprioceptive afferent input to the contralateral SM1 cortex.

KW - Kinematics

KW - Human brain

KW - Magnetoencephalography

KW - Proprioception

KW - Sensorimotor cortex

KW - Partial directed coherence

KW - Movement

U2 - 10.1016/j.neuroimage.2014.11.026

DO - 10.1016/j.neuroimage.2014.11.026

M3 - Article

VL - 106

SP - 382

EP - 390

JO - NeuroImage

JF - NeuroImage

SN - 1053-8119

ER -

ID: 1994474