Studymoderate evidence
Alpha rhythms in the left auditory cortex set the speed limit for speech comprehension.
Proceedings of the National Academy of Sciences of the United States of America·July 21, 2026·PMID 42455675
Why it mattersSpeech comprehension speed limits are a fundamental constraint in human communication, and this paper identifies a specific neural mechanism—alpha oscillations in the left auditory cortex—that sets this limit. For neurologists and those in performance and longevity, it suggests a modifiable target for enhancing auditory processing in healthy aging, cognitive decline, or communication disorders.
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