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Related Concept Videos

Synaptic Signaling01:12

Synaptic Signaling

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Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
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Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
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Proofreading01:31

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Synthesis of new DNA molecules is carried out by the enzyme DNA polymerase, which adds nucleotides on the daughter strand complementary to the template DNA strand. DNA polymerase has a higher affinity to add the correct base and ensures fidelity during DNA replication. Furthermore,  it exhibits proofreading activity during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.
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A synapse is a specialized structure where two neurons connect, allowing them to pass an electrical or chemical signal to another neuron. It is the point of communication between neurons. The term "synapse" is derived from the Greek word "synapsis," which means "conjunction." The entire process of neural communication revolves around the synapse. When activated, a neuron releases chemicals known as neurotransmitters into the synapse. These neurotransmitters cross the synapse and bind to...
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Neurons communicate with one another by passing on their electrical signals to other neurons. A synapse is the location where two neurons meet to exchange signals. At the synapse, the neuron that sends the signal is called the presynaptic cell, while the neuron that receives the message is called the postsynaptic cell. Note that most neurons can be both presynaptic and postsynaptic, as they both transmit and receive information.
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SynAnno: Interactive Guided Proofreading of Synaptic Annotations.

Leander Lauenburg, Jakob Troidl, Adam Gohain

    IEEE Transactions on Visualization and Computer Graphics
    |December 15, 2025
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    Summary
    This summary is machine-generated.

    SynAnno streamlines synaptic annotation proofreading in connectomics. This tool accelerates reconstruction of neural wiring diagrams by reducing errors and cognitive load for neuroscientists.

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    Area of Science:

    • Neuroscience
    • Computational Neuroscience
    • Bioinformatics

    Background:

    • Connectomics aims to map neural wiring diagrams at the synapse level.
    • Automated segmentation tools accelerate connectome reconstruction but require extensive human proofreading for accuracy.

    Purpose of the Study:

    • To present SynAnno, an interactive tool for streamlining and enhancing synaptic annotation proofreading in large-scale connectomics datasets.
    • To improve the efficiency and accuracy of manual proofreading in connectome reconstruction.

    Main Methods:

    • SynAnno enables guided, neuron-centric proofreading within existing neuroscience workflows.
    • It features a structured workflow with an optimized traversal path and a 3D mini-map.
    • Fine-tuned machine learning models assist in error detection and correction.

    Main Results:

    • User and case studies with neuroscience experts demonstrate SynAnno's effectiveness.
    • SynAnno significantly accelerates synapse proofreading.
    • It reduces cognitive load and annotation errors through structured guidance and visualization.

    Conclusions:

    • SynAnno enhances the efficiency and accuracy of synaptic annotation proofreading in connectomics.
    • The tool integrates seamlessly into neuroscience workflows, aiding in the reconstruction of complex neural circuits.
    • SynAnno offers a valuable solution for reducing manual burden in large-scale connectome analysis.