Face‐hand sensorimotor interactions revealed by afferent inhibition

2021 ◽  
Author(s):  
Bia Lima Ramalho ◽  
Julien Moly ◽  
Estelle Raffin ◽  
Romain Bouet ◽  
Sylvain Harquel ◽  
...  
Keyword(s):  
Afferent Inhibition ◽  
Sensorimotor Interactions

scholarly journals Electrocutaneous stimulation to the face inhibits motor evoked potentials in the hand: face-hand interactions revealed by afferent inhibition

2019 ◽  
Author(s):  
Bia L. Ramalho ◽  
Julien Moly ◽  
Estelle Raffin ◽  
Sylvain Harquel ◽  
Alessandro Farnè ◽  
...  
Keyword(s):  
Normal State ◽  
Large Scale ◽  
Motor Evoked Potentials ◽  
Motor Evoked Potential ◽  
Muscular Activity ◽  
Electrocutaneous Stimulation ◽  
Afferent Inhibition ◽  
The Face ◽  
Sensorimotor Interactions ◽  
The Right

AbstractReorganization of the sensorimotor cortex following amputation and other interventions has revealed large-scale plastic changes between the hand and face representations. To investigate whether hand-face interactions are also present in the normal state of the system we measured sensorimotor interactions between these two areas using an afferent inhibition transcranial magnetic stimulation (TMS) protocol in which the TMS motor evoked potential (MEP) is inhibited when it is preceded by an afferent stimulus. We hypothesized that if hand-face interactions exist in the normal state of the system then stimulation of the face would inhibit hand MEPs. In two separate experiments we delivered an electrocutaneous stimulus to either the right upper lip (Experiment 1) or right cheek (Experiment 2) and recorded muscular activity from the right first dorsal interosseous (FDI). Both lip and cheek stimulation inhibited FDI MEPs. To investigate the specificity of this effect we conducted two additional experiments in which cutaneous stimulation was applied to either the right forearm (Experiment 3) or right arm (Experiment 4). Neither forearm nor arm stimulation inhibited FDI MEPs. These data provide the first evidence for face-to-hand afferent inhibition and we suggest that the mechanisms underlying these sensorimotor interactions could contribute to face/hand interactions observed following sensorimotor reorganisation.

scholarly journals Somatotopy and temporal dynamics of sensorimotor interactions: evidence from double afferent inhibition

2015 ◽  
Vol 41 (11) ◽  
pp. 1459-1465 ◽  
Author(s):  
Luigi Tamè ◽  
Francesco Pavani ◽  
Christoph Braun ◽  
Romeo Salemme ◽  
Alessandro Farnè ◽  
...  
Keyword(s):  
Temporal Dynamics ◽  
Afferent Inhibition ◽  
Sensorimotor Interactions

Slow rTMS to the somatosensory cortex attenuates afferent inhibition in patients with writer's cramp

2005 ◽  
Vol 32 (S 4) ◽  
Author(s):  
C Demiralay ◽  
T Bäumer ◽  
U Hidding ◽  
R Helmich ◽  
S Wunderlich ◽  
...  
Keyword(s):  
Somatosensory Cortex ◽  
Writer’S Cramp ◽  
Afferent Inhibition ◽  
Writer's Cramp

scholarly journals Learning Speech Production and Perception through Sensorimotor Interactions

2020 ◽  
Author(s):  
Shihab Shamma ◽  
Prachi Patel ◽  
Shoutik Mukherjee ◽  
Guilhem Marion ◽  
Bahar Khalighinejad ◽  
...  
Keyword(s):  
Vocal Tract ◽  
Human Subjects ◽  
Motor Task ◽  
Neural Processes ◽  
Mathematical Simulations ◽  
Predictive Role ◽  
Sensorimotor Interactions ◽  
Forward Projection ◽  
Cortical Regions

Abstract Action and Perception are closely linked in many behaviors necessitating a close coordination between sensory and motor neural processes so as to achieve a well-integrated smoothly evolving task performance. To investigate the detailed nature of these sensorimotor interactions, and their role in learning and executing the skilled motor task of speaking, we analyzed ECoG recordings of responses in the high-γ band (70 Hz-150 Hz) in human subjects while they listened to, spoke, or silently articulated speech. We found elaborate spectrotemporally-modulated neural activity projecting in both forward (motor-to-sensory) and inverse directions between the higher-auditory and motor cortical regions engaged during speaking. Furthermore, mathematical simulations demonstrate a key role for the forward projection in learning to control the vocal tract, beyond its commonly-postulated predictive role during execution. These results therefore offer a broader view of the functional role of the ubiquitous forward projection as an important ingredient in learning, rather than just control, of skilled sensorimotor tasks.

Association of short- and long-latency afferent inhibition with human behavior

2021 ◽  
Author(s):  
Claudia V. Turco ◽  
Stephen L. Toepp ◽  
Stevie D. Foglia ◽  
Patrick W. Dans ◽  
Aimee J. Nelson
Keyword(s):  
Human Behavior ◽  
Afferent Inhibition ◽  
Long Latency

Effects of water immersion on short- and long-latency afferent inhibition, short-interval intracortical inhibition, and intracortical facilitation

2013 ◽  
Vol 124 (9) ◽  
pp. 1846-1852 ◽  
Author(s):  
Daisuke Sato ◽  
Koya Yamashiro ◽  
Takuya Yoshida ◽  
Hideaki Onishi ◽  
Yoshimitsu Shimoyama ◽  
...  
Keyword(s):  
Water Immersion ◽  
Short Interval ◽  
Intracortical Inhibition ◽  
Intracortical Facilitation ◽  
Afferent Inhibition ◽  
Long Latency
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