Explore the evolution of neuroscience, from studying the dead brain to using imaging tech, revealing new insights into the human mind. Delve into the triune brain model and the consciousness-brain connection. Learn about brain imaging in auditory hallucinations and memory functions, and the intricacies of brain surgery for epilepsy evaluation.
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Quick takeaways
Advancements in imaging technologies have shifted neuroscience from studying the dead to observing active brain functions.
Neuroscience integrates neurobiological, cognitive, and cultural levels with a focus on brain plasticity and consciousness.
Deep dives
Neuroscience and Technology Advancements
Imaging machines and technologies now allow us to observe the active brain's functions, moving from examining the dead to studying active neurons. This shift has transformed our understanding of how the brain works.
Evolution of Neuroscience
Neuroscience, a confluence of various disciplines, aims to link neurobiological levels with cognitive and cultural levels. Innovations in neuroimaging technologies have catalyzed this field's growth, creating a more cohesive practice since the mid-1990s.
Understanding Brain Function and Conscious Thought
Research shows that conscious thought plays a lesser role than traditionally believed. Studies like Libet's free will experiments reveal that the brain initiates actions before a person consciously decides. Brain activity involving visual pathways and complex social constructs demonstrates the interplay between conscious and unconscious processes.
Memory, Brain Plasticity, and Consciousness
Brains areas can adapt and grow in response to learning and experiences, similar to muscle memory. Studies on London taxi drivers and blind individuals showcase brain plasticity and cortical remapping. Consciousness is interconnected with brain functions, impacting perception, memory, and overall brain activity.
Melvyn Bragg and guests examine the relationship between the mind and the brain as they discuss recent developments in Neuroscience. In the mid-19th century a doctor had a patient who had suffered a stroke. The patient was unable to speak save for one word. The word was ‘Tan’ which became his name. When Tan died, the doctor discovered damage to the left side of his brain and concluded that the ability to speak was housed there. This is how neuroscience used to work – by examining the dead or investigating the damaged – but now things have changed. Imaging machines and other technologies enable us to see the active brain in everyday life, to observe the activation of its cells and the mass firing of its neuron batteries. Our extraordinary new knowledge of how the brain works has challenged concepts of free will and consciousness and opened up new ways of understanding the brain. Yet these new ideas seem to conform to some old ideas such as Freudian Psychoanalysis. But what picture of the brain has emerged, how has our understanding of it changed and what are the implications for understanding that most mysterious and significant of all phenomena – the human mind?With Martin Conway, Professor of Psychology at the University of Leeds; Gemma Calvert, Professor of Applied Neuroimaging at WMG, University of Warwick and David Papineau, Professor of Philosophy of Science at King’s College London.
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