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Unlocking Our Brain's Limitations: Strengthening Mental Capacity

Discover why our brains have limited processing capacity and how it affects our daily lives. Explore ways to stretch these limits through mental exercises and understand the effects of fast-paced technology, the Flynn effect, controlled vs stimuli-driven attention, and biased competition among neurons. Learn about the central limitation of retaining information and the importance of working memory. Explore the correlation between working memory capacity and intelligence.

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Unlocking Our Brain's Limitations: Strengthening Mental Capacity

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  1. Goal of book • To understand why our brains have limited capacity for processing information • What effect it has on our everyday lives • How we can stretch these limits with mental exercises

  2. Fast pace created by technology Flynn effect Controlled vs. stimulus-driven attention Incessant distractions Simultaneous performance multitasking Central limitation: ability to retain information Biased competition among neurons stress Capacity constraints Brain changes with practice

  3. Working Memory: = our ability to remember information for a limited period of time, usually a matter of seconds “The ability to keep information active for a short period, based on continual neuronal activity” (p47) Vital to numerous mental tasks from attention control to solving logical problems How we remember what it is we are to concentrate on

  4. Controlling Attention Oculomotor delay response task—the “dot test” Monkey trained to fixate on an image of a cross directly in front of it A dot is then flashed on the periphery of the screen A few-seconds delay occurs & the cross disappears The monkey now has to direct its gaze onto the position where the dot was NOTE: This takes weeks for the monkeys to learn! NOTE: Working memory is needed!

  5. Working memory and intelligent “At present, working memory capacity is the best predictor for intelligence that has yet been derived from theories and research on human cognition” (Suss) There is a strong correlation between the presentation of working memory tasks and problem-solving ability. The correlation is about 0.7. (Engle)

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