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Study design
An eLife study simultaneously imaged thousands of neurons across eight mouse cortical areas during a vision-guided task and a task dependent on choice history. The work first appeared as a preprint in December 2024; reviewed versions followed in February 2025 and February 2026, then this Version of Record on September 2, 2026.
What the results suggest
The medial parietal AM area responded to visual and choice information, while area A represented choice history with sequential dynamics and also tracked posture. Correlation patterns between areas broadly reflected anatomical input relationships, with some global interactions as exceptions.
Limits
The study maps activity in mice during two laboratory tasks; recordings do not show that either area alone causes those behaviors. These functional divisions may depend on the task and recording approach, and the results do not establish equivalent human cortical modules.
This sourced news summary and translation were prepared with AI assistance. Source links, the news date and research limitations are disclosed; this is not a claim of independent medical expert review. News production method.
Sources
- Mesoscale functional architecture in medial posterior parietal cortex — eLife ·
- Mesoscale functional architecture in medial posterior parietal cortex — eLife reviewed preprint ·
- Mesoscale functional architecture in medial posterior parietal cortex — eLife reviewed preprint ·
Research news is not medical advice or a recommendation to use a substance. Read findings in the context of the study design, participants and limitations. Editorial standards.
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