The greatest impairment is found in attention, memory, judgment, decision-making, information processing and language skills.

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This type of experiential, addictive learning improves decision-making skills and increases the processing speed and spatial skills of the brain.

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For example, one day we might be able to design apps that allow people to probe their own cognitive abilities (processing speed, memory, decision-making, etc.) at any time during the day and track these abilities over the years, transmitting the results from their smartphones to a health care provider if desired.

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