How Your Brain Sees the World
Common sense holds that your brain sees an object, and then recognizes it. But a new study shows that the reality may be the reverse. Your expectations shape what you see.
It was thought that the brain processed stimuli the way large companies process orders. Neurons at the bottom of a chain of command bring in data and pass it up the line. The higher level neurons take the raw data and either match it up appropriate responses, or if more work is necessary, add a little more data and pass it higher. The brain responded to external sources of data. A new study indicates that the brain actually processes stimuli the way large companies implement policies: from the top down. High level brain cells form an expectation of certain data, and hand it down to the lower neurons.
Malcolm Gladwell teaches "Get over yourself and get to work" for Big Think Edge.
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You can say 'no' to things, and you should. Do it like this.
- Give yourself permission to say "no" to things. Saying yes to everything is a fast way to burn out.
- Learn to say no in a way that keeps the door of opportunity open: No should never be a one-word answer. Say "No, but I could do this instead," or, "No, but let me connect you to someone who can help."
- If you really want to say yes but can't manage another commitment, try qualifiers like "yes, if," or "yes, after."
"I was so moved when I saw the cells stir," said 90-year-old study co-author Akira Iritani. "I'd been hoping for this for 20 years."
- The team managed to stimulate nucleus-like structures to perform some biological processes, but not cell division.
- Unless better technology and DNA samples emerge in the future, it's unlikely that scientists will be able to clone a woolly mammoth.
- Still, studying the DNA of woolly mammoths provides valuable insights into the genetic adaptations that allowed them to survive in unique environments.
Neuroscience research suggests it might be time to rethink our ideas about when exactly a child becomes an adult.
- Research suggests that most human brains take about 25 years to develop, though these rates can vary among men and women, and among individuals.
- Although the human brain matures in size during adolescence, important developments within the prefrontal cortex and other regions still take pace well into one's 20s.
- The findings raise complex ethical questions about the way our criminal justice systems punishes criminals in their late teens and early 20s.
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