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MIT researcher Deb Roy wanted to understand how his infant son learned language -- so he wired up his house with videocameras to catch every moment (with exceptions) of his son's life, then parsed 90,000 hours of home video to watch "gaaaa" slowly turn into "water." Astonishing, data-rich research with deep implications for how we learn.

Brain, bodily awareness, and the emergence of a conscious self: these entities and their relations are explored by Germanphilosopher and cognitive scientist Metzinger. Extensively working with neuroscientists he has come to the conclusion that, in fact, there is no such thing as a "self" -- that a "self" is simply the content of a model created by our brain - part of a virtual reality we create for ourselves. But if the self is not "real," he asks, why and how did it evolve? How does the brain construct the self? In a series of fascinating virtual reality experiments, Metzinger and his colleagues have attempted to create so-called "out-of-body experiences" in the lab, in order to explore these questions. As a philosopher, he offers a discussion of many of the latest results in robotics, neuroscience, dream and meditation research, and argues that the brain is much more powerful than we have ever imagined. He shows us, for example, that we now have the first machines that have developed an inner image of their own body -- and actually use this model to create intelligent behavior. In addition, studies exploring the connections between phantom limbs and the brain have shown us that even people born without arms or legs sometimes experience a sensation that they do in fact have limbs that are not there. Experiments like the "rubber-hand illusion" demonstrate how we can experience a fake hand as part of our self and even feel a sensation of touch on the phantom hand form the basis and testing ground for the idea that what we have called the "self" in the past is just the content of a transparent self-model in our brains. Now, as new ways of manipulating the conscious mind-brain appear on the scene, it will soon become possible to alter our subjective reality in an unprecedented manner. The cultural consequences of this, Metzinger claims, may be immense: we will need a new approach to ethics, and we will be forced to think about ourselves in a fundamentally new way. At

Playing sound effects both pleasant and awful, Julian Treasure shows how sound affects us in four significant ways. Listen carefully for a shocking fact about noisy open-plan offices. (Recorded at TEDGlobal University, July 2009, Oxford, UK. Duration: 5:47)

What drives our desire to behave morally? Neuroeconomist Paul Zak shows why he believes oxytocin (he calls it "the moral molecule") is responsible for trust, empathy and other feelings that help build a stable society.

At TEDxUSC, David Logan talks about the five kinds of tribes that humans naturally form -- in schools, workplaces, even the driver's license bureau. By understanding our shared tribal tendencies, we can help lead each other to become better individuals.

By leading the Americans in his audience at TEDxPSU step by step through the thought process, sociologist Sam Richards sets an extraordinary challenge: can they understand -- not approve of, but understand -- the motivations of an Iraqi insurgent? And by extension, can anyone truly understand and empathize with another?

Speaking at LIFT 2007, Sugata Mitra talks about his Hole in the Wall project. Young kids in this project figured out how to use a PC on their own -- and then taught other kids. He asks, what else can children teach themselves?

Most of us will do anything to avoid being wrong. But what if we're wrong about that? "Wrongologist" Kathryn Schulz makes a compelling case for not just admitting but embracing our fallibility.

Jon Ronson is the author of The Psychopath Test: A Journey Through the Madness Industry, an exploration of what defines a psychopath. At TED2012, he told a part of that story on stage - how he met a man named Tony who was held for years in a psychiatric prison because he faked mental illness too well, and about how Ronson himself became trained (perhaps too well also) to spot psychopaths for himself.

Back in 1958, Ted Schwarzrock was an 8-year-old third grader when he became one of the "Torrance kids," a group of nearly 400 Minneapolis children who completed a series of creativity tasks newly designed by professor E. Paul Torrance. Schwarzrock still vividly remembers the moment when a psychologist handed him a fire truck and asked, "How could you improve this toy to make it better and more fun to play with?"

http://www.ted.com Mihaly Czikszentmihalyi asks, "What makes a life worth living?" Noting that money cannot make us happy, he looks to those who find pleasure and lasting satisfaction in activities that bring about a state of "flow."

http://www.ted.com Dan Gilbert, author of Stumbling on Happiness, challenges the idea that well be miserable if we dont get what we want. Our "psychological immune system" lets us feel truly happy even when things dont go as planned.     TEDTalks is a daily video podcast of the best talks and perfor

http://www.ted.com Behavioral economist Dan Ariely, the author of Predictably Irrational, uses classic visual illusions and his own counterintuitive (and sometimes shocking) research findings to show how we're not as rational as we think when we make decisions.

Dr. Joe Dispenza is a brilliant neuroscientist and author with a knack for demystifying complicated neuroscience. His goal is to show how anyone can use the latest scientific discoveries in neuroplasticity to "rewire" the brain and recondition the body for lasting change. You see, the unconscious mind can't tell the difference between a memory of an event, and the event itself. So when you replay negative thoughts, feelings and memories, the mind reacts as if the event were really happening... ...your heart rate increases, breathing changes and your body goes into a "fight or flight" response (commonly known as stress). Not surprisingly, repeated stress leads to major health problems. But here's the good news: The human mind has an incredible capacity to observe our own thoughts and behaviors, which means you can alter your brain structure by integrating new thoughts and behaviors. Not only that - but you can even change your genetic expression. It isn't always easy... especially when it comes to deeply ingrained habits and addictions. But hypnosis can make it MUCH more likely someone will successfully replace negative thought patterns with positive, healthy new pathways! Intrigued to find out how? Head on over to the Hypnosis Training Academy to listen to Dr. Dispenza's illuminating talk today.

Talks about happiness and self-perception and how we can all be successful in our own lives. A lot of positive psychology in this talk