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A new study sheds light on why certain people find it particularly difficult to follow conversations in noisy environments, identifying changes in a vital brain region known as the insula. Published this week in the journal Brain and Language, the research from the University at Buffalo shows that the left insula in individuals who struggle with “speech-in-noise” tasks works harder and displays altered connectivity—even when the brain is supposedly at rest—possibly explaining persistent listening difficulties as well as links to cognitive decline and dementia (Neuroscience News).

A new study sheds light on why some people struggle to follow conversations in noisy rooms by highlighting changes in a key brain region called the insula. Published in Brain and Language, the research from a major U.S. university shows that the left insula in people who find speech-in-noise tasks difficult exhibits stronger connections to auditory areas, even when the brain is at rest. This could explain persistent listening challenges and may relate to cognitive decline and dementia over time.