Nerve Fiber Bundles
Nerve Fiber Bundles - Related Videos
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.
06:08
Preparation and Immunofluorescence Staining of Bundles and Single Fiber Cells from the Cortex and Nucleus of the Eye Lens
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Cited by 7 •
2023
This protocol describes methods to prepare peripheral, mature, and nuclear eye lens fiber cells for immunofluorescence staining to study complex cell-to-cell interdigitations and the membrane architecture.
05:37
Visualization of Mitochondria within Intraepidermal Nerve Fibers
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2025
Source: Hamid, H. S., et al. Three-dimensional Imaging and Analysis of Mitochondria within Human Intraepidermal Nerve Fibers. J. Vis. Exp. (2017) This video demonstrates the method for visualizing nerve-specific mitochondria using three-dimensional imaging. It outlines the process of acquiring sequential scans of pre-labeled intraepidermal nerve fibers and generating 3D surface images to isolate and display mitochondria in relation to nerve structures.
08:50
Multiplexed Fluorescent Microarray for Human Salivary Protein Analysis Using Polymer Microspheres and Fiber-optic Bundles
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Cited by 4 •
2013
We describe a procedure for profiling salivary proteins using multiplexed microsphere-based antibody arrays. Monoclonal antibodies were covalently linked to fluorescent dye-encoded 4.5 μm polymer microspheres using carbodiimide chemistry. The modified microspheres were deposited in fiber-optic microwells to measure protein levels in saliva using fluorescence sandwich immunoassays.
10:31
Three-dimensional Imaging and Analysis of Mitochondria within Human Intraepidermal Nerve Fibers
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2017
This protocol uses three-dimensional (3D) imaging and analysis techniques to visualize and quantify nerve-specific mitochondria. The techniques are applicable to other situations where one fluorescent signal is used to isolate a subset of data from another fluorescent signal.
FAQs
Myelin acts as insulation around many axons, helping electrical impulses travel more efficiently through the fibers. This efficiency supports the rapid transmission of signals between connected neural areas. Because bundles can contain myelinated fibers, differences in their organization or insulation may influence how effectively information moves through pathways involved in perception, learning, memory, emotion, and movement.
Organization determines which neural regions can exchange information through larger pathways. A bundle linking specialized areas can support coordination between processes rather than isolated activity within one region. This connectivity is important in psychology because perception, memory, emotion, learning, and movement depend on communication across distributed parts of the nervous system.
Disrupted connectivity may interfere with communication between neural areas, potentially affecting cognition or behavior. The consequences depend on which pathways are involved and which functions those regions support. Studying such disruption helps researchers examine how changes in neural organization relate to neurological conditions and to differences in psychological abilities or behavioral outcomes.
Diffusion tensor imaging, often abbreviated as DTI, can map white-matter tracts in living brains. This gives researchers a way to examine the organization of pathways without relying only on behavioral observations. The resulting connectivity information supports investigations of how neural structure relates to perception, learning, memory, emotion, movement, individual differences, and neurological conditions.
Mapping neural pathways can help researchers relate brain connectivity to specific psychological functions. For example, studies may examine how communication between neural areas corresponds with perception, learning, memory, emotion, or movement. It can also support comparisons of individual differences, allowing researchers to investigate whether variation in connectivity is associated with different cognitive or behavioral patterns.
Psychology studies cognition and behavior, while nerve fiber pathways provide a structural context for how brain regions communicate during those functions. Examining these pathways helps connect neural organization with observable processes such as remembering, learning, perceiving, feeling, and moving. This biological context can strengthen explanations of behavioral variation and changes associated with neurological conditions.