Fiber Tract Removal
Fiber Tract Removal - Related Videos
16:23
Fiber Connections of the Supplementary Motor Area Revisited: Methodology of Fiber Dissection, DTI, and Three Dimensional Documentation
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Cited by 32 •
2017
The purpose of this study is to show each step of the fiber dissection technique on human cadaveric brains, the 3D documentation of these dissections, and the diffusion tensor imaging of the anatomically dissected fiber pathways.
08:28
Microfluidic Dry-spinning and Characterization of Regenerated Silk Fibroin Fibers
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Cited by 6 •
2017
A protocol for the microfluidic spinning and microstructure characterization of regenerated silk fibroin monofilament is presented.
03:55
In Vivo Single-Fiber Recording of Sciatic Nerve C-Fibers in Rats
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2025
This video demonstrates a single-fiber recording of C-fiber nerve conduction in rats. An anesthetized rat is incised to expose the sciatic nerve, which provides sensory and motor supply to the lower limbs. The individual C-fibers are then exposed. Electrical stimulation is provided using stimulus electrodes implanted in the foot, and a response is recorded from a single nerve fiber.
06:47
Retrograde Loading of Nerves, Tracts, and Spinal Roots with Fluorescent Dyes
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Cited by 5 •
2012
We describe a simple and low cost technique for introducing high concentration of fluorescent and calcium-sensitive dyes into neurons or any neuronal tract using a polyethylene suction pipette.
03:47
Methylene Blue Dye Injection in Mouse Embryonic Urinary Tract: A Method To Assess the Congenital Obstruction in the Urinary Tract
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2025
In this video, we administer methylene blue dye injection into the urinary tract of a perinatal embryonic mouse to assess congenital anomalies related to urinary tract obstruction.
FAQs
Researchers infer a tract’s contribution by identifying behavioral or physiological changes that appear after the connection is disrupted but are absent or reduced in intact controls. This comparison helps separate effects linked to the targeted circuit from broader consequences of nervous-system damage, making tract-specific interpretations more defensible.
The initial interruption removes input between connected regions, but subsequent axonal degeneration and inflammation can extend the biological consequences of the intervention. Compensatory plasticity may also alter circuit activity over time. Researchers must therefore interpret later behavioral or physiological outcomes as a combination of direct disconnection and responses to neural injury.
A defined tract links particular brain or spinal regions, so its disruption removes input from one part of the nervous system to another. The resulting deficit can indicate how those regions cooperate in a circuit. Interpreting the result requires attention to both the interrupted pathway and the functions normally supported by its connected areas.
A typical study identifies a defined axon bundle, applies a targeted lesion or excision to disrupt it, and then evaluates affected behavior or physiological function. Researchers compare the treated subjects with intact controls and consider degeneration, inflammation, and compensatory plasticity when interpreting whether an observed effect reflects tract loss or broader tissue damage.
The approach can reveal tract-specific effects on behavior and physiological function, including processes related to sensorimotor control. Observations are most informative when linked to the disrupted connection and compared with intact subjects. Changes over time may additionally show how degeneration, inflammation, or compensatory plasticity modifies the initial consequence of disconnection.
In biology, researchers apply this method to investigate neural circuit organization, sensorimotor control, development, and recovery after injury. It can show how a defined connection contributes to normal function and how nervous systems respond when that connection is lost. These applications also help distinguish circuit-specific roles from general effects of neural damage.