A new study reveals how the brain responds to mental exhaustion, identifying two key regions--the right insula and the dorsolateral prefrontal cortex--that become more active as cognitive fatigue builds. Using functional MRI, researchers observed how volunteers responded to demanding memory tasks and how their willingness to continue changed based on internal fatigue and external rewards.
A new study reveals how the brain responds to mental exhaustion, identifying two key regions--the right insula and the dorsolateral prefrontal cortex--that become more active as cognitive fatigue builds. Using functional MRI, researchers observed how volunteers responded to demanding memory tasks and how their willingness to continue changed based on internal fatigue and external rewards.
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