Your Inner Cosmos with David Eagleman
Summary
Neil deGrasse Tyson and Gary O'Reilly interview neuroscientist David Eagleman about the brain's plasticity and perception. Eagleman explains how the brain adapts to sensory loss, such as using skin vibrations for hearing, and proposes that dreams serve to keep the visual cortex active during sleep. The discussion also covers memory reconstruction, synesthesia, and the subjective nature of time perception.
Topics discussed
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Introduction of David Eagleman and neuroplasticity
Sensory substitution: hearing through skin
Braille reading and visual cortex repurposing
Human echolocation and spatial awareness
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Dreams as a way to keep visual cortex active
Hallucinations in sensory deprivation and tinnitus
Why we forget dreams and memory as a sieve
Inattentional blindness and eyewitness testimony
Synesthesia, aphantasia, and internal imagery
Color perception and tetrachromacy
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Time perception in fear and neural relativity
Saccadic masking and auditory hallucinations
The mystery of consciousness and AI ethics
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