scholarly journals The Effect of Acute Body Unloading on Somatosensory Performance, Motor Activation, and Visuomotor Tasks

2020 ◽  
Vol 11 ◽  
Author(s):  
Ashleigh Marchant ◽  
Nick Ball ◽  
Jeremy Witchalls ◽  
Gordon Waddington ◽  
Ajitkumar P. Mulavara ◽  
...  
Keyword(s):  
Motor Activation ◽  
Visuomotor Tasks

Transient increases in blood pressure affect sensory-motor activation following stroke using functional MR imaging in the rat

2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S402-S402
Author(s):  
Rong Wang ◽  
Zhonghang Zhao ◽  
David Rushforth ◽  
Tadeusz Foniok ◽  
Jaclyn I Wamsteeker ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Mr Imaging ◽  
Motor Activation ◽  
Sensory Motor ◽  
Functional Mr Imaging

Functional MRI reveals enhanced somatosensory and impaired motor activation in orofacial dystonia

2005 ◽  
Vol 32 (S 4) ◽  
Author(s):  
C Dresel ◽  
B Haslinger ◽  
F Castrop ◽  
A Wohlschläger ◽  
A.O Ceballos-Baumann
Keyword(s):  
Functional Mri ◽  
Motor Activation

Machine learning may predict individual hand motor activation from resting-state fMRI in patients with brain tumors in perirolandic cortex

2021 ◽  
Author(s):  
Chen Niu ◽  
Yang Wang ◽  
Alexander D. Cohen ◽  
Xin Liu ◽  
Hongwei Li ◽  
...  
Keyword(s):  
Machine Learning ◽  
Brain Tumors ◽  
Resting State ◽  
Resting State Fmri ◽  
Motor Activation

scholarly journals Motor Activation During the Prediction of Nonexecutable Actions in Infants

2013 ◽  
Vol 24 (6) ◽  
pp. 828-835 ◽  
Author(s):  
Victoria Southgate ◽  
Katarina Begus
Keyword(s):  
Motor Activation

scholarly journals ADENOSINE-DOPAMINE INTERACTIONS IN THE BASAL GANGLIA AS A MAIN MECHANISM OF ACTION FOR CAFFEINE-INDUCED MOTOR ACTIVATION

1996 ◽  
Vol 7 (Supplement 1) ◽  
pp. 39
Author(s):  
B FERRY ◽  
P J MAGISTRETTI ◽  
E PRALONG
Keyword(s):  
Basal Ganglia ◽  
Mechanism Of Action ◽  
Main Mechanism ◽  
Motor Activation

scholarly journals Comparing three portable, tablet-based visuomotor tasks to laboratory versions: An assessment of test validity

2018 ◽  
Vol 2 ◽  
pp. 205970021879914 ◽  
Author(s):  
Christopher D Bedore ◽  
Jasmine Livermore ◽  
Hugo Lehmann ◽  
Liana E Brown
Keyword(s):  
Test Validity ◽  
Neurological Status ◽  
Stop Signal ◽  
Stop Signal Task ◽  
Response Patterns ◽  
Double Step ◽  
Movement Timing ◽  
Visuomotor Processing ◽  
Visuomotor Tasks ◽  
Portable Tablet

The assessment of visuomotor function can provide important information about neurological status. Many tasks exist for testing visuomotor function in the laboratory, but the availability of portable, easy-to-use versions that allow reliable, accurate, and precise measurement of movement timing and accuracy has been limited. We developed a tablet application that uses three laboratory visuomotor tests: the double-step task, interception task, and stop-signal task. We asked the participants to perform both the lab and tablet versions of each task and compared their response patterns across equipment types to assess the validity of the tablet versions. On the double-step task, the participants adjusted to the displaced target adequately in both the lab and tablet versions. On the interception task, the participants intercepted nonaccelerating targets and performed worse on accelerating targets in both versions of the task. On the stop-signal task, the participants successfully inhibited their reaching movements on short stop-signal delays (50–150 ms) more frequently than on long stop-signal delays (200 ms) in both versions of the task. Our findings suggest that the tablet version of each task assesses visuomotor processing in the same way as their respective laboratory version, thus providing the research community with a new tool to assess visuomotor function.

scholarly journals Motor activation in literal and non-literal sentences: does time matter?

2013 ◽  
Vol 7 ◽  
Author(s):  
Cristina Cacciari ◽  
Francesca Pesciarelli
Keyword(s):  
Motor Activation

NMDA-Induced Motor Activation in Rodents

Neurobiology ◽  
1996 ◽  
pp. 85-94
Author(s):  
Lydia Giménez-Llort ◽  
Sergi Ferré ◽  
Emili Martínez
Keyword(s):  
Motor Activation

scholarly journals Cross-transfer of motor control in visuomotor tasks. Systematic review

2021 ◽  
Vol 38 (5) ◽  
pp. 358-366
Author(s):  
Javier Ruiz-Seijoso ◽  
Yaiza Taboada-Iglesias
Keyword(s):  
Motor Control ◽  
Randomized Trials ◽  
Web Of Science ◽  
Control Group ◽  
Motor Ability ◽  
Short Term ◽  
Exclusion Criteria ◽  
Cross Education ◽  
Visuomotor Tasks ◽  
Visuomotor Skills

Introduction: The term “cross-education” describes the perfomance improvement, both in motor control and strength, of a limb after training the opposite. Despite its current interest, there is no consensus on many concepts of the transfer of a visuomotor skill. The aim of the present research was to review the current literature on the phenomenon of cross-education in visuomotor skills in order to determine the magnitude of transference and its relationships with the context of the intervention. Results: A literature search was conducted during December 2019 in the databases Pubmed, CINAHL, MEDLINE, Web of Science, SPORTdiscus and Scopus. The descriptors “Motor ability” and “Motor skill” were used, in addition to the keywords “Motor control”, “skill”, “Task”, “cross over effect”, “cross exercise”, “contralateral learning”, “inter limb transfer “,” cross transfer “,” cross education “. After applying the inclusion and exclusion criteria, a total of 19 articles were obtained for analysis. Of these articles, 12 are RCTs, 4 crossover clinical trial, 2 are non-randomized trials and only 1 lacks a control group. Most of the articles consist of a short-term intervention. Only 5 studies are of a duration of between 4 and 6 weeks. Conclusion: the cross-education phenomenon occurs in visuomotor skills. However, the magnitude of transference and its relation to the amount of learning of the trained member seems to be very variable depending on the context of the intervention. Likewise, the scarce consensus and the methodological differences in the studies make it difficult to draw firm conclusions about the effects of the context on the transference.

scholarly journals Withholding a Reward-driven Action: Studies of the Rise and Fall of Motor Activation and the Effect of Cognitive Depletion

2016 ◽  
Vol 28 (2) ◽  
pp. 237-251 ◽  
Author(s):  
Scott M. Freeman ◽  
Adam R. Aron
Keyword(s):  
Effortful Control ◽  
Control Process ◽  
Single Pulse ◽  
Top Down ◽  
Motor Activation ◽  
Rapid Responses ◽  
The Face ◽  
Cognitive Depletion ◽  
Early Rise ◽  
Control Failures

Controlling an inappropriate response tendency in the face of a reward-predicting stimulus likely depends on the strength of the reward-driven activation, the strength of a putative top–down control process, and their relative timing. We developed a rewarded go/no-go paradigm to investigate such dynamics. Participants made rapid responses (on go trials) to high versus low reward-predicting stimuli and sometimes had to withhold responding (on no-go trials) in the face of the same stimuli. Behaviorally, for high versus low reward stimuli, responses were faster on go trials, and there were more errors of commission on no-go trials. We used single-pulse TMS to map out the corticospinal excitability dynamics, especially on no-go trials where control is needed. For successful no-go trials, there was an early rise in motor activation that was then sharply reduced beneath baseline. This activation–reduction pattern was more pronounced for high- versus low-reward trials and in individuals with greater motivational drive for reward. A follow-on experiment showed that, when participants were fatigued by an effortful task, they made more errors on no-go trials for high versus low reward stimuli. Together, these studies show that, when a response is inappropriate, reward-predicting stimuli induce early motor activation, followed by a top–down effortful control process (which we interpret as response suppression) that depends on the strength of the preceding activation. Our findings provide novel information about the activation–suppression dynamics during control over reward-driven actions, and they illustrate how fatigue or depletion leads to control failures in the face of reward.

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