A trio of brain networks dynamically orchestrates music recognition

In 30 intracranial recordings, three interacting brain networks dynamically coordinate music recognition, and their activity timing predicts when subjects respond.

• Why it matters: Recognition in real life blends sensory input, memory, and predictions continuously, but it is unclear how large-scale networks integrate these signals during ongoing recognition.
• What they did: The study used intracranial recordings (N = 30) of high-frequency activity (70-160 Hz) plus dimensionality reduction to identify three functional networks and track their temporal dynamics.
• The result: For memorized sequences, sensory activity attenuated while integrative and decision-related dynamics evolved toward sensorimotor engagement; novel sequences disrupted this pattern and bidirectional communication between sensory and integrative networks.

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