3 clues to understanding your brain
Thinking about the brain with v.s. ramachandran
Neuroscientist Vilayanur S. Ramachandran discusses the human brain and what it takes to research it in his TED Talk. He goes over three main “clues”: Capgras illusion (where you can’t tell what things are), phantom limbs (amputees seeing a false arm), and synesthesia (where you can’t tell what things are) (where you associate sensorial stimuli to other senses).
He used body illusions to handle all three of them, discovering ways to confuse the brain. Dr. Ramachandran, for example, used a mirror box with a projection of the real arm to fool the person’s mind into thinking they had another real arm in the phantom limb experiment. This was so successful that the patients were able to move on from their dreams of a fake arm.
We found this encouraging for our project because these researchers used imaginative approaches to real-world problems. Digital technology expands the possibilities even further: by using body sensitive, biofeedback technology, we will be able to fully exploit the human system and assist pain victims and other users in better understanding their bodies.
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When the patient looks at his mother, he identifies her as an imposter who is impersonating his mother. The Oedipus complex of Sigmund Freud is the most common interpretation: as a baby, you have a strong sexual attraction to your mother, and as you grow older, the cortex develops and inhibits these latent sexual urges towards your mother, before a blow to the head damages the cortex, allowing these latent sexual urges to resurface (argument never made sense to ramachandran since patients usually exhibit the same delusional behavior towards their dogs).
Examine the structure and function of the brain’s natural visual pathways. The sensory areas at the back of the brain receive visual input from the eyeballs (around 30 areas). The message is then transmitted to the Fusiform Gyrus, which is where faces are viewed. You lose the ability to recognize faces when this region is affected. The message then moves to the amygdala (the limbic system, the brain’s emotional core), which assesses the emotional meaning of what you’re looking at (prey, predator, mate, object). When the amygdala is activated, a warning is sent to the autonomic nervous system (increase HR, sweating).
Carta: human origins: lessons from autism spectrum
http://www.ted.com/favorite Vilayanur Ramachandran uses three startling illusions to illustrate what brain injury can show about the relationship between celebral tissue and the mind. Jill Bolte Taylor, Sir Ken Robinson, Hans Rosling, Al Gore, and Arthur Benjamin are among the speakers who have given TEDTalks, a regular video podcast of the best talks and performances from the TED Conference, where the world’s leading thinkers and doers are invited to give the talk of their lives in 18 minutes. Technology, Entertainment, and Design (TED) is an acronym for Technology, Entertainment, and Design, and TEDTalks cover these subjects as well as science, business, politics, and the arts. On TED.com, go to http://www.ted.com/index.php/talks/top10 to see the Top 10 TEDTalks.
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Capgras syndrome was the first example he gave. Capgras allows a person to recognize someone’s face but suspect that the person is an imposter who is attempting to deceive them. They will understand the voice and agree that they are listening to the correct person if they talk to them on the phone without seeing them, but not if they see them. According to Dr. Ramachandran, the most common reason for what is happening is a psychological reaction rather than a physiological or neurological condition. He claims that a more rational interpretation of this condition is that brain damage messed up the relationship between what you see, how you perceive it, and how you feel about that individual. ..