A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Volitional muscle activation intensifies neuronal processing of proprioceptive afference in the primary sensorimotor cortex : an EEG study (2024)

Giangrande, A., Cerone, G. L., Botter, A., & Piitulainen, H. (2024). Volitional muscle activation intensifies neuronal processing of proprioceptive afference in the primary sensorimotor cortex : an EEG study. Journal of Neurophysiology, 131(1), 28-37. https://doi.org/10.1152/jn.00340.2023

JYU-tekijät tai -toimittajat

Giangrande, Alessandra
Piitulainen, Harri

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Giangrande, Alessandra; Cerone, Giacinto Luigi; Botter, Alberto; Piitulainen, Harri

Lehti tai sarja: Journal of Neurophysiology

ISSN: 0022-3077

eISSN: 1522-1598

Julkaisuvuosi: 2024

Ilmestymispäivä: 15.11.2023

Volyymi: 131

Lehden numero: 1

Artikkelin sivunumerot: 28-37

Kustantaja: American Physiological Society

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1152/jn.00340.2023

Julkaisun avoin saatavuus: Ei avoin

Julkaisukanavan avoin saatavuus: 

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/91962

Tiivistelmä

Proprioception refers to the ability to perceive the position and movement of body segments in space. The cortical aspects of the proprioceptive afference from the body can be investigated using corticokinematic coherence (CKC). CKC accurately quantifies the degree of coupling between cortical activity and limb kinematics, especially if precise proprioceptive stimulation of evoked movements are used. However, there is no evidence on how volitional muscle activation during the proprioceptive stimulation affects CKC strength. Twenty-five healthy volunteers (28.8 ± 7 yr, 11 females) participated the experiment that included electroencephalographic (EEG), electromyographic (EMG) and kinematic recordings. 2-Hz ankle-joint rotations were elicited through a movement actuator in two conditions: passive condition with relaxed ankle and active condition with constant 5-Nm plantar flexion exerted during the stimulation. In total, 6-min of data were recorded per condition. CKC strength was defined as the maximum coherence value among all the EEG channels at the 2-Hz-movement frequency for each condition separately. Both conditions resulted in significant CKC peaking at the Cz electrode over the foot area of the primary sensorimotor (SM1) cortex. Stronger CKC was found for the active (0.13 ± 0.14) than passive (0.03 ± 0.04) condition (P < 0.01). The results indicated that volitional activation of the muscles intensifies the neuronal proprioceptive processing in the SM1 cortex. This finding could be explained both by peripheral sensitization of the ankle joint proprioceptors and central modulation of the neuronal proprioceptive processing in the spinal and cortical levels.

YSO-asiasanat: aivot; aivokuori; asennot (ruumiinasennot); EEG; liike

Vapaat asiasanat: corticokinematic coherence; electroencephalography; proprioception; somatosensory

Liittyvät organisaatiot

Hankkeet, joissa julkaisu on tehty

OKM-raportointi: Kyllä

VIRTA-lähetysvuosi: 2023

JUFO-taso: 2