Reveal the mechanism of brain function with fluorescence microscopy at single-cell resolution: from neural decoding to encoding.
Kangchen Li, Huanwei Liang, Jialing Qiu and 8 others
PMID 40426214WHAT IT FOUND
This review describes how researchers use two-photon microscopy to see and manipulate individual neurons in animals.
It explains the math used to link brain activity to behavior. It reports no human data and offers no guidance for clinical practice.
Key findings
01The paper is a review of two-photon fluorescence imaging methods for studying neural decoding and encoding in animal models.
02The review categorizes neural decoding methods into linear, nonlinear, and hybrid models based on how they process imaging data.
03The review categorizes neural encoding methods into quantity, spatial, temporal, and frequency patterns based on how neurons transmit information.
STILL TO COME
How it was doneWhat they found
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What it does not show
The paper is a narrative review of basic science research, not a clinical trial or observational study involving humans. All described experiments were conducted in animal models (mice, rats, zebrafish, macaques), so findings may not translate directly to human rehabilitation. The review does not report original data, effect sizes, or clinical outcomes that could inform therapy protocols. Technical limitations of the imaging method, such as shallow penetration depth and small field of view, restrict its current utility for whole-brain functional mapping in clinical settings.
Declared interests
The authors declare funding from the Zhejiang Health Information Association Research Program, the National Natural Science Foundation of China, the Zhejiang Provincial Medical and Health Technology Project, the Open Research Fund of the State Key Laboratory of Brain-Machine Intelligence at Zhejiang University, the Hangzhou Science and Technology Bureau, the Key R&D Program of Zhejiang Province, and the Qiushi Youth Program.
The easy way to misread this
Do not interpret this review as evidence that two-photon imaging or optogenetics are available or applicable for patient assessment or treatment. The paper describes laboratory techniques for animal research and theoretical models, not clinical tools.