Mesoscale functional architecture in medial posterior parietal cortex.

Medial posterior parietal cortex in mice contains two distinct modules, AM and A, with specialized functions in multisensory integration and posture control.

• Why it matters: Understanding how different cortical areas coordinate complex behaviors is crucial for unraveling brain function, especially in regions involved in multisensory processing and memory.
• What they did: Using two-photon mesoscopy, activity of thousands of neurons across eight cortical areas was imaged in mice performing vision-guided and choice-dependent tasks, revealing localized functions.
• The result: Findings show AM integrates vision and choice information, while A encodes choice history and posture, enabling specialized cortical communication pathways for higher-order behaviors.