Ep35 "What sticks in your brain and what doesn’t? "
Nov 20, 2023
auto_awesome
Explore the concept of brain plasticity and how the brain can change through practice and perception. Learn about the Polgar Sisters, world champion chess players, and how their extensive practice shaped their brains. Discover how neurotransmitters like acetylcholine modulate neural plasticity and the physical changes observed in the brains of London taxi drivers. Reflect on the modifiability of the brain and its importance in learning, as well as the challenges of studying the effects of growing up with the internet.
Relevance and motivation are crucial for brain plasticity, determining which experiences and information are more likely to be retained and reconfigured.
Experience and repetitive practice lead to structural changes in the brain, as certain regions become more developed and specialized based on an individual's goals and interests.
The digital age offers new opportunities for enriched learning experiences, with immediate access to information and the ability to follow personal interests and curiosity promoting diverse connections in the brain.
Deep dives
Brain plasticity and its role in learning and adaptation
The brain is capable of changing and adapting throughout life through a process called brain plasticity. This process allows the brain to reconfigure its neural connections in response to new experiences and learning. Plasticity occurs when the brain is exposed to relevant and meaningful stimuli that align with an individual's goals and interests. These stimuli trigger the release of neuromodulators, such as acetylcholine, which increase the brain's plasticity and ability to change. Relevance and motivation play a crucial role in brain plasticity, as they determine which experiences and information are more likely to be retained and reconfigured. It is through this process that expertise is developed, as individuals engage in deliberate practice and repetitive learning to refine their skills. This understanding of brain plasticity and its dependence on relevance has important implications for education and learning, suggesting that personalized and engaging approaches are more effective in promoting meaningful brain changes.
The impact of experience on brain structure
Experience and repetitive practice can lead to structural changes in the brain. For example, musicians who extensively practice playing an instrument show distinct changes in the motor cortex associated with the muscles involved. String players may exhibit increased representation of their left hand, which is responsible for intricate finger movements, while pianists may have an expanded representation in both hemispheres due to the complexities of playing with both hands. Similar structural changes have been observed in individuals engaged in other specialized activities, such as learning braille or juggling. These changes occur as a result of the brain assigning more neural territory to processes that are repeatedly activated and relevant to an individual's goals and interests.
The role of relevance and neuromodulators in brain changes
Relevance plays a crucial role in determining which experiences and information lead to brain changes. Neuromodulators, such as acetylcholine, are released in response to relevant and rewarding stimuli, signaling the brain to increase plasticity and reconfigure neural connections. These neuromodulators allow for selective changes in specific brain areas, based on the importance and relevance of the learned information. Understanding the role of relevance and neuromodulators in brain changes can inform educational approaches and promote effective learning strategies that align with individual interests and goals.
The impact of screen-based technology on brain development
The long-term effects of growing up with digital technology and constant internet access on brain development are still not well-understood. Conducting meaningful studies on the effects of screen-based technology is challenging due to the lack of suitable control groups for comparison. However, the access to vast amounts of information and knowledge through the internet presents new opportunities for enriched learning experiences. The immediate access to information and the ability to follow personal interests and curiosity through online platforms can enhance learning and promote the development of diverse connections in the brain. The digital age offers a unique landscape for learning, but further research is needed to fully understand its impact on brain plasticity and cognition.
Optimizing learning through personalized and engaging approaches
Current approaches to education are moving towards personalized, adaptive, and engaging strategies that leverage technology and individual interests. Personalized learning platforms and adaptive software aim to tailor the learning experience to each individual's needs and learning pace, promoting relevance and motivation. By fostering curiosity, providing immediate access to information, and allowing learners to follow their interests, these approaches tap into the brain's natural plasticity and enhance the retention and application of knowledge. Emphasizing the role of relevance, motivation, and individualized learning can optimize learning outcomes and promote meaningful brain changes.
f you look at a brain, how can you immediately tell if it belongs to a piano player or a violinist? How can a dog learn how to walk on its rear legs? And what does this have to do with expertise, or the good news about the brains of digital natives, or how governments respond to change just like brains do? While we all like to talk about brain plasticity, the truth is that most of what happens in your life makes no meaningful change to your brain. So what’s the difference between the stuff that sticks and the stuff that doesn’t?
Get the Snipd podcast app
Unlock the knowledge in podcasts with the podcast player of the future.
AI-powered podcast player
Listen to all your favourite podcasts with AI-powered features
Discover highlights
Listen to the best highlights from the podcasts you love and dive into the full episode
Save any moment
Hear something you like? Tap your headphones to save it with AI-generated key takeaways
Share & Export
Send highlights to Twitter, WhatsApp or export them to Notion, Readwise & more
AI-powered podcast player
Listen to all your favourite podcasts with AI-powered features
Discover highlights
Listen to the best highlights from the podcasts you love and dive into the full episode