SNAP: Reducing errors in neuron morphology analysis

Published on June 14, 2023

Imagine you’re an artist trying to recreate a beautiful sculpture, but there’s noise and entanglement all around you. It’s hard to focus and capture the true essence of the sculpture. Well, that’s exactly what happens when scientists reconstruct the shape of neurons in the brain! The SNAP pipeline is like a skilled artist armed with special tools, carefully pruning away the noise and untangling the mess to reveal the intricate structure of each neuron. By incorporating statistical information, SNAP can detect and remove extra segments caused by background noise, entangled dendrites, and even entanglements with other neurons! It’s like cleaning up a messy room and organizing everything into its proper place. SNAP not only improves the accuracy of reconstruction but also makes it easier to analyze neuron morphology in high-throughput workflows. With SNAP, scientists can gain a clearer understanding of the different types of neurons in the brain and their functions. So, grab your virtual scalpel and explore the fascinating research behind the SNAP pipeline!

BackgroundNeuron morphology analysis is an essential component of neuron cell-type definition. Morphology reconstruction represents a bottleneck in high-throughput morphology analysis workflow, and erroneous extra reconstruction owing to noise and entanglements in dense neuron regions restricts the usability of automated reconstruction results. We propose SNAP, a structure-based neuron morphology reconstruction pruning pipeline, to improve the usability of results by reducing erroneous extra reconstruction and splitting entangled neurons.MethodsFor the four different types of erroneous extra segments in reconstruction (caused by noise in the background, entanglement with dendrites of close-by neurons, entanglement with axons of other neurons, and entanglement within the same neuron), SNAP incorporates specific statistical structure information into rules for erroneous extra segment detection and achieves pruning and multiple dendrite splitting.ResultsExperimental results show that this pipeline accomplishes pruning with satisfactory precision and recall. It also demonstrates good multiple neuron-splitting performance. As an effective tool for post-processing reconstruction, SNAP can facilitate neuron morphology analysis.

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