DeepBouton: Automated Identification of Single-Neuron Axonal Boutons at the Brain-Wide Scale

Autor: Shenghua Cheng, Xiaojun Wang, Yurong Liu, Lei Su, Tingwei Quan, Ning Li, Fangfang Yin, Feng Xiong, Xiaomao Liu, Qingming Luo, Hui Gong, Shaoqun Zeng
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Frontiers in Neuroinformatics, Vol 13 (2019)
Druh dokumentu: article
ISSN: 1662-5196
DOI: 10.3389/fninf.2019.00025
Popis: Fine morphological reconstruction of individual neurons across the entire brain is essential for mapping brain circuits. Inference of presynaptic axonal boutons, as a key part of single-neuron fine reconstruction, is critical for interpreting the patterns of neural circuit wiring schemes. However, automated bouton identification remains challenging for current neuron reconstruction tools, as they focus mainly on neurite skeleton drawing and have difficulties accurately quantifying bouton morphology. Here, we developed an automated method for recognizing single-neuron axonal boutons in whole-brain fluorescence microscopy datasets. The method is based on deep convolutional neural networks and density-peak clustering. High-dimensional feature representations of bouton morphology can be learned adaptively through convolutional networks and used for bouton recognition and subtype classification. We demonstrate that the approach is effective for detecting single-neuron boutons at the brain-wide scale for both long-range pyramidal projection neurons and local interneurons.
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