Mossy Fiber Projections
Mossy Fiber Projections - Related Videos
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.
02:18
Fischer Projections
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2023
Learning to draw Fischer projections of molecules and understanding their relevance plays a crucial role in the visual depiction of organic molecules. A Fischer projection is a two-dimensional projection on a planar surface to simplify the three-dimensional wedge–dash representation of molecules. This is especially helpful in the case of molecules with multiple chiral centers that can be difficult to draw. Here, all the bonds of interest are represented as horizontal or vertical lines. While...
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.
02:06
Newman Projections
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2023
Different notations are used to represent the three-dimensional structure of molecules on two-dimensional surfaces. One of the most commonly used representations is the dash-wedge formula. The dashed wedges, solid wedges, and the plane lines indicate the groups situated behind the plane, coming out of the plane, and in the plane, respectively. The organic molecules rotate across the single bonds leading to numerous temporary three-dimensional structures of varying energy known as conformers.
11:34
Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
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Cited by 7 •
2017
This method aims at locating vertical subsurface defects. Here, we couple a laser with a spatial light modulator and trigger its video input to heat a sample surface deterministically with two anti-phased modulated lines while acquiring highly resolved thermal images. The defect position is retrieved from evaluating thermal wave interference minima.
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Their large presynaptic boutons support powerful glutamate-mediated excitatory synapses onto CA3 pyramidal neurons. This arrangement allows activity from relatively limited groups of dentate granule cells to exert a strong effect on selected downstream cells. Consequently, these connections can substantially shape how hippocampal information is processed before it contributes to memory-related activity.
Sparse connectivity limits how many CA3 neurons receive direct input from a given group of dentate granule cells, whereas divergence distributes that input across selected targets. Together, these properties allow small granule-cell populations to strongly influence particular CA3 neurons without broadly activating the entire circuit. This organization supports pattern separation and selective associative processing.
Their organization helps transform dentate granule-cell activity before it reaches the CA3 network. Because input is both sparse and strongly excitatory at selected synapses, different activity patterns can be distributed in a selective manner. This processing contributes to distinguishing related patterns, forming associations, and representing spatial information within hippocampal circuits.
Researchers combine tracing, electrophysiology, and imaging to examine different aspects of the pathway. Tracing approaches investigate the anatomical connections, electrophysiology examines functional signaling through the circuit, and imaging follows activity-related patterns. Using these methods together links projection structure with synaptic influence and circuit behavior, providing a broader view than any single technique alone.
Investigations can show how dentate granule-cell activity is transformed and distributed to CA3 neurons during hippocampal processing. The resulting evidence helps connect circuit organization with pattern separation, associative memory, and spatial representation. These studies are therefore useful for relating cellular connectivity and signaling to broader memory-related functions rather than examining anatomy in isolation.
These projections provide a circuit-level focus for identifying changes in hippocampal connectivity and activity associated with altered brain function. Comparing their structure or signaling across normal and disease-related conditions can clarify how memory-related processing is affected. Their study may therefore link specific hippocampal circuit changes with conditions involving epilepsy, aging, or neurological disease.