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Disentangling motor execution from motor imagery with the phantom limb [PDF]
Brain, 2012 Amputees can move their phantom limb at will. These 'movements without movements' have generally been considered as motor imagery rather than motor execution, but amputees can in fact perform both executed and imagined movements with their phantom and they report distinct perceptions during each task.
Estelle Raffin +2 more
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Disrupting somatosensory processing impairs motor execution but not motor imagery
Human Movement Science, 2023While motor imagery (MI) is thought to be 'functionally equivalent' with motor execution (ME), the equivalence of feedforward and feedback mechanisms between the two modalities is unexplored. Here, we tested the equivalence of these mechanisms between MI and ME via two experiments designed to probe the role of somatosensory processing (Exp 1), and ...
Tarri B, Jessey +3 more
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Effects of tDCS on Cortical Motor Facilitation in Performing Motor Execution
2021 9th International Winter Conference on Brain-Computer Interface (BCI), 2021This study aims to reveal how motor execution contributes to cortical motor facilitation during tDCS. Four healthy subjects were participated in two experimental protocols: (1) tDCS with task (i.e., right hand clenching) and (2) tDCS without task. Each subject underwent 3 sessions (before tDCS, tDCS, after tDCS) for each protocol. Oxygenated hemoglobin
Junmo Yang +3 more
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Speed of motor execution and apraxia
Journal of Clinical and Experimental Neuropsychology, 1997We used a reaction time paradigm to explore the relationship between motor execution and apraxia. The task required reaching for one to three keys. The instruction was varied by introducing a model of a hand indicating which fingers to use. Whereas patients with right-brain damage were slower than controls regardless of condition, the performance of ...
J, Spatt, G, Goldenberg
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Surround inhibition in motor execution and motor imagery
Neuroscience Letters, 2016Surround inhibition (SI) is a neural mechanism to focus neuronal activity and facilitate selective motor execution (ME). The aim of the present study was to investigate whether SI is also generated during motor imagery (MI). Furthermore, we investigated whether the extent of SI during MI depends on the strength of SI during ME and/or vividness of MI ...
Toshiyuki, Aoyama +3 more
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The striatum and motor cortex in motor initiation and execution
Brain Research, 1991The participation of striatal and motor cortex neurons in motor initiation and execution was studied using single neuronal recording in 3 monkeys performing wrist flexion and extension stimulus-initiated reaction time tasks. Observations of 46 striatal neurons whose activity correlated with the tasks were compared to recordings of 59 task-related motor
E B, Montgomery, S R, Buchholz
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Child Neuropsychology, 2005
Attention and executive functions were investigated in medicated and unmedicated children with ADHD combined type using a novel selective reaching task. This task involved responding as rapidly as possible to a target while at times having to ignore a distractor.
Klimkeit, EI +4 more
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Attention and executive functions were investigated in medicated and unmedicated children with ADHD combined type using a novel selective reaching task. This task involved responding as rapidly as possible to a target while at times having to ignore a distractor.
Klimkeit, EI +4 more
openaire +4 more sources
Motor execution is necessary to memorize disparity
Experimental Brain Research, 2000Binocular saccades in response to briefly flashed, memorized disparate targets (different for the two eyes) become disconjugate following repeated trials. After 15 min of such training, the disconjugacy persists, even when the target to memorize is no longer disparate. This study examines the hypothesis that disparity memorization has a motor basis. We
Z, Kapoula +3 more
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Neuromodulation of parietal and motor activity affects motor planning and execution
Cortex, 2014Transcranial direct current stimulation (tDCS) is a non-invasive tool, which effectively modulates behavior, and related brain activity. When applied to the primary motor cortex (M1), tDCS affects motor function, enhancing or decreasing performance of both healthy participants and brain-damaged patients.
CONVENTO, SILVIA +4 more
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Executive Function and Motor Skill Learning
1997Publisher Summary Evidence from behavioral studies of patients with cerebellar atrophy implies that the cerebellum plays a role in visuomotor learning and adaptation, planning, strategic thinking, time processing, and associative learning. Evidence from studies using functional neuroimaging supports this implication and substantiates the hypothesis ...
M, Hallett, J, Grafman
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