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Related Concept Videos

Brain Imaging01:14

Brain Imaging

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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
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Stimulants01:29

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Stimulants are substances that enhance neural activity and elevate dopamine levels in the brain, leading to their highly addictive nature. These drugs include cocaine, amphetamines, MDMA, caffeine, and nicotine, each with distinct mechanisms of action and varied health implications.
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Motor Unit Stimulation01:20

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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.
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Muscle Stimulation Frequency01:22

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The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
Wave summation
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Action Potential: Phases of Stimulation01:28

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The action potential is a complex electrical event that occurs in excitable cells, such as neurons and muscle cells. It consists of several distinct phases, each with specific characteristics.
Resting Phase:
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CNS Stimulants: Psychedelic Agents

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Related Experiment Video

Updated: Feb 15, 2026

Deep Brain Stimulation with Simultaneous fMRI in Rodents
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Image-Guided, Asleep Deep Brain Stimulation.

Andrew L Ko, Kim J Burchiel

    Progress in Neurological Surgery
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    Summary
    This summary is machine-generated.

    Deep brain stimulation (DBS) is a key treatment for movement disorders like Parkinson's disease. Advances in technology and understanding are expanding its use and improving outcomes, with focused ultrasound emerging as an alternative.

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    Microelectrode Guided Implantation of Electrodes into the Subthalamic Nucleus of Rats for Long-term Deep Brain Stimulation
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    Area of Science:

    • Neurosurgery
    • Neurology
    • Biomedical Engineering

    Background:

    • Deep brain stimulation (DBS) is a proven therapy for intractable movement disorders such as Parkinson's disease, essential tremor, and dystonia.
    • The field is rapidly advancing with improvements in surgical techniques, hardware, and stimulation strategies.

    Purpose of the Study:

    • To review the current state and future directions of deep brain stimulation for movement disorders.
    • To discuss emerging technologies and alternative treatments.

    Main Methods:

    • Review of recent advancements in DBS technology, including patient selection, targeting, hardware, and stimulation paradigms.
    • Discussion of the expanding indications for DBS and the role of new therapeutic options like MR-guided focused ultrasound.

    Main Results:

    • DBS technology continues to evolve, enhancing safety and efficacy for movement disorder treatment.
    • Closed-loop stimulation and improved hardware design are key areas of development.
    • MR-guided focused ultrasound presents a resurging, viable alternative for specific patient groups.

    Conclusions:

    • Deep brain stimulation remains a critical and evolving treatment for movement disorders.
    • Technological and mechanistic advancements will broaden DBS applications.
    • Focused ultrasound offers a complementary or alternative therapeutic option, expanding treatment choices.