Quantitative Biology

    

500,000—1,000,000 Neurons: A Biological Threshold for Initial Self-Perception?

Authors: Shulei Xie

Self-perception, the ability to sense one’s own bodily state, is a fundamental trait in biological systems. This study investigates whether a neuron count of 500,000—1,000,000 marks a threshold for "initial self-perception" during embryonic development. Developmental datafrom four species—mouse (E12), human (6—7 weeks), pig (E20—E25), and chicken (E7—E8)—were analyzed for neural, cardiac, limb, and sensory features at this neuron range. Resultsshow consistent signal integration across species, forming a rudimentary "body sense" atthis stage. These findings suggest that 500,000—1,000,000 neurons may represent a biological threshold for initial self-perception, providing insights into the origins of self-awarenessin neural development.

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Submission history

[v1] 2025-02-24 03:29:37
[v2] 2025-03-03 21:07:30

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