Biology

Brain cells tune their firing based on signal frequency, not just timing

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A new study published in PLOS Biology demonstrates that neurons in the human brain respond selectively to different oscillatory frequencies, not just to specific phases of brain rhythms as previously emphasized. Using intracranial recordings from human subjects, researchers found that neuronal firing patterns are tuned to particular frequencies of brain oscillations, revealing an additional layer of organization in how brain rhythms coordinate neural activity. This frequency-dependent tuning works in conjunction with phase tuning to structure information processing in the brain.


This finding expands our understanding of how brain rhythms organize neural communication and could inform the development of more sophisticated brain stimulation therapies and brain-computer interfaces. Understanding both frequency and phase tuning may help explain how different cognitive processes are coordinated across brain regions and could lead to better treatments for neurological disorders involving disrupted brain rhythms.


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by Ying Yao, Simon Hanslmayr

A new study in PLOS Biology shows that neuronal firing is selectively tuned to oscillatory frequency in human intracranial recordings, complementary to phase tuning, suggesting an additional dimension in how brain rhythms may organize neural activity.

This primer discusses a study in PLOS Biology showing that neuronal firing is selectively tuned to oscillatory frequency in human intracranial recordings, complementary to phase tuning, and suggesting an additional dimension in how brain rhythms may organize neural activity.

Source: It’s not just the phase: Frequency-dependent tuning of neuronal firing