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Dr. Charan Ranganath: How to Improve Memory & Focus Using Science Protocols

Huberman Lab

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Understanding Cognitive Strategies and Memory Processes

The brain can learn and adapt to new strategies through a feedback mechanism involving error and correct signals, as illustrated by card sorting tasks. This learning can occur without the prefrontal cortex, highlighting that context and prior knowledge can temporarily guide actions despite incorrect strategies. Individuals may struggle to adapt to new rules due to perseveration, particularly when faced with conflicting information, as demonstrated by patients who continue using outdated strategies even after recognizing their ineffectiveness. The prefrontal cortex plays a crucial role in translating abstract beliefs into actionable decisions, implying that cognitive processing is essential for effective memory utilization. Modern information overload necessitates reliance on the prefrontal cortex to filter out distractions and focus on relevant stimuli, which is vital for memory retention. Interestingly, while older adults generally perform poorly on controlled memory tests requiring focus, research indicates they can effectively ignore irrelevant information just as well as younger individuals. This suggests that age-related memory decline may be overstated when tasks require sustained attention rather than the ability to disregard extraneous data.

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