Motor Remodeling Studies
Motor Remodeling Studies - Related Videos
02:54
Nucleosome Remodeling
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2020
Nucleosomes are the basic units of chromatin compaction. Each nucleosome consists of the DNA bound tightly around a histone core, which makes the DNA inaccessible to DNA binding proteins such as DNA polymerase and RNA polymerase. Hence, the fundamental problem is to ensure access to DNA when appropriate, despite the compact and protective chromatin structure. Nucleosome remodeling complex Eukaryotic cells have specialized enzymes called ATP-dependent nucleosome remodeling enzymes. These enzymes...
11:03
Motor Maps
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2023
Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel—University of Southern California One principle of brain organization is the topographic mapping of information. Especially in sensory and motor cortices, adjacent regions of the brain tend to represent information from adjacent parts of the body, resulting in maps of the body expressed on the surface of the brain. The primary sensory and motor maps in the brain surround a prominent sulcus known as the central sulcus. The cortex...
06:04
Study Motor Skill Learning by Single-pellet Reaching Tasks in Mice
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Cited by 64 •
2014
Persistent practice improves the precision of coordinated movements. Here we introduce a single-pellet reaching task, which is designed to assess the learning and memory of forelimb skill in...
08:45
An Introduction to Motor Control
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2023
Motor control involves integration and processing of sensory information by our nervous system, followed by a response through our skeletal system to perform a voluntary or involuntary action. It is vital to understand how our neuroskeletal system controls motor behavior in order to evaluate injuries pertaining to general movement, reflexes, and coordination. An improved understanding of motor control will help behavioral neuroscientists in developing useful tools to treat motor disorders, such...
05:10
A Non-invasive Approach to Study the Electrophysiology of Motor Neurons in Zebrafish Embryos
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2025
This video demonstrates a non-invasive assay to study electrophysiology of motor neurons in zebrafish embryos. Upon measuring tail coiling in the embryos as a result of spontaneous depolarization of the spinal cord motor neurons, a sodium channel blocker is applied to reduce the coiling frequency. Next, the embryos are immobilized in agarose and placed under a fluorescence microscope. The genetically engineered motor neurons express a voltage-sensing biosensor with a donor and an acceptor...
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Changes in neural activity can modify synaptic connections at communication points between nerve cells and muscle. At the neuromuscular junction, these adjustments may alter how effectively motor signals activate skeletal muscle. Examining such changes helps researchers connect patterns of neural input with differences in movement, muscle activation, and the maintenance or recovery of coordinated motor function.
Motor units combine a motor neuron with the muscle fibers it controls, so changes in their organization can affect how force is distributed during movement. Axonal branching can also alter how neural signals reach muscle fibers. Studying both features helps distinguish changes in neural connectivity from changes occurring within the muscle itself.
Skeletal muscle can adapt alongside the nervous system, and altered muscle-fiber properties may influence strength, activation, and movement performance. These changes provide a muscle-level complement to findings about synapses, motor units, and axons. Considering both neural and muscular adaptations gives a more complete account of how function changes after exercise, injury, or disease.
The central comparison is how neural, neuromuscular, and muscular features differ as an organism develops, experiences altered activity, undergoes injury, exercises, or develops disease. Researchers can relate these changing conditions to structural and functional outcomes across the motor system. This time-based perspective helps separate transient adjustments from adaptations associated with longer-term recovery or impairment.
These studies are particularly valuable for examining motor development, muscle plasticity, rehabilitation, and neuromuscular disorders. They help investigators ask whether altered connections, motor-unit organization, axonal branching, or muscle-fiber properties accompany weakness or impaired control. In rehabilitation research, that information can support strategies aimed at restoring function after nerve damage or other motor-system disruption.
Motor remodeling studies can clarify how coordinated movement is maintained or restored when the motor system changes. Their findings may reveal relationships between structural adaptations and functional outcomes such as weakness or impaired motor control. This evidence can guide investigation of treatment strategies for nerve damage, neuromuscular disorders, and other conditions that disrupt communication between the nervous system and muscle.