Unilateral Motor Stimulation
Unilateral Motor Stimulation - Related Videos
05:47
Repetitive Transcranial Magnetic Stimulation to the Unilateral Hemisphere of Rat Brain
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Cited by 10 •
2016
We applied repetitive transcranial magnetic stimulation (rTMS) to the unilateral hemisphere of rat brain, by placing a 25-mm figure-8 coil 1 cm lateral to the vertex on the biauricular line and angulating the coil by 45°. An in-house water cooling system was used for rTMS for more than 20 min.
12:09
Stimulating the Lip Motor Cortex with Transcranial Magnetic Stimulation
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Cited by 29 •
2014
Transcranial magnetic stimulation (TMS) has proven to be a useful tool in investigating the role of the articulatory motor cortex in speech perception. This article describes how to record motor evoked potentials (MEPs) from the lip muscles and how to disrupt the motor lip representation using repetitive TMS.
03:49
Non-Invasive Electrical Brain Stimulation for Modulating Human Motor Neuron Activity
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2025
Source: Curado, M. et. al., Non-Invasive Electrical Brain Stimulation Montages for Modulation of Human Motor Function. J. Vis. Exp. (2016)This video demonstrates the setup and mechanism of transcranial direct current stimulation (tDCS) for modulating human motor function. By placing the anode over the primary motor cortex and the cathode over the contralateral supraorbital area, the targeted electrical stimulation increases cortical excitability, enhancing motor neuron activity and improving...
07:47
Non-Invasive Electrical Brain Stimulation Montages for Modulation of Human Motor Function
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Cited by 4 •
2016
Non-invasive electrical brain stimulation can modulate cortical function and behavior, both for research and clinical purposes. This protocol describes different brain stimulation approaches for modulation of the human motor system.
01:20
Motor Unit Stimulation
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2024
When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers. The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
FAQs
The key comparison is between activity and behavior associated with the stimulated side and the corresponding unstimulated side. Differences in movement, coordination, response selection, or behavioral preference indicate how selectively increasing activity in one motor-related circuit influences behavior. This within-experiment contrast helps separate lateralized circuit effects from broader changes affecting both sides.
The unstimulated side provides a reference for judging the consequences of activating the targeted motor region or pathway. Comparing the two sides can reveal whether stimulation produces a localized change in movement or behavior rather than a general shift in activity. This comparison is especially useful for examining asymmetric neural control and possible hemispheric specialization.
Movement measures can indicate changes in motor output, whereas coordination measures can reveal how stimulation alters the relationship between sides. Response selection tests whether asymmetric activity biases a behavioral choice, and preference measures show whether one side becomes behaviorally favored. Considering several outcomes helps researchers determine whether the effect concerns execution, organization, selection, or preference.
Researchers first target a motor-related region or pathway on one side of the nervous system, then deliver stimulation while monitoring relevant movement or behavioral responses. Results are interpreted by comparing outcomes linked to the stimulated and unstimulated sides. The approach therefore connects selective circuit activation with observable changes in motor performance or behavior.
The approach is useful when investigators want to examine how altered activity in a motor circuit relates to impaired movement or uneven motor performance. Side-specific stimulation can expose circuit contributions that may be hidden in bilateral measurements. These observations support behavioral analysis of dysfunction and can inform research on targeted neuromodulation strategies.
In behavior research, side-to-side differences provide evidence about how neural circuits organize movement and behavioral choices. The method can help test principles of motor control, evaluate lateralized processing, and connect activity in a defined pathway with measurable responses. Its value lies in linking asymmetric neural manipulation to functional outcomes rather than observing behavior alone.