It is interesting and perhaps surprising to realize that most mammals lack a capacity for complex vocal learning of this sort. Current research suggests that aside from humans, only marine mammals (whales, dolphins, seals), bats, and elephants have it. Among primates, humans appear to be the only species that can hear…
All tools are externalizations of originally integral functions. But in developing each tool man also extends the limits of its usefulness, since he can make bigger cups hold liquids too hot or chemically destructive for his hands. Tools do not introduce new principles but they greatly extend the range of conditions…
You really don't have to worry about one part of your laptop going rogue and trying out something on its own that the rest of the system doesn't want to do. No, they're all slaves. If they're agents, they're slaves. They are prisoners. They have very clear job descriptions. They get fed every day. They don't have to…
My interest is in the psychological adaptations that are uniquely human, the 10 percent or so of the brain's capacities that are not shared with other apes. This is where we find puzzling abilities like creative intelligence and complex language that show these great individual differences, these ridiculously high…
The healthy brain theory suggests that our brains are different from those of other apes not because extrava- gantly large brains helped us to survive or to raise offspring, but because such brains are simply better advertisements of how good our genes are. The more complicated the brain, the easier it is to mess up…
Brainprint scans are considered the definitive method for identifying egos. Contrary to popular misconceptions, the term “brainwave scan” is a misnomer, as this form of identifier is not based on simple electroencephalography (EEG: a reading of the electrical activity created by neurons firing within the brain). The…
evolution conserves things that work. We have a conserved brain, with different ages for its different parts—in effect lizard at back and bottom, mammal in the middle, human at the front and top. Lizard brain to breathe and sleep, mammal brain to form packs, human brain to think it over
“The body tries to stay alive. It’s not so… It’s natural. Maybe you’ll see it now. First the human brain dies, then the animal brain, then the lizard brain. Like your Rm, only backward. The lizard brain tries to its very last bit of energy to keep things going. I’ve seen it. Some kind of desire. It’s a real force…
My own opinion is that AI has failed to fulfill its promise because we are using the wrong kind of computers. We are using digital computers, and the human brain is probably analog rather than digital. So my guess is that AI will succeed only after we move from digital to analog computing. This is a tough intellectual…
Production of speech is seen as a pure motor act, involving muscles and the neurons controlling them, while perception of speech is seen as purely sensory, involving the ear and the auditory pathway. This parcellation of the systems appear intuitive and clear, but recent studies [beginning with Taine 1870!]…
Have you ever wondered why one of the most difficult things to teach a robot to do is to walk on two legs? It turns out there's a reason. Apparently, the simple act of walking turns out not to be so simple after all. Professor Florentin Worgotter of the University of Gottingen in Germany explains why teaching a robot…
There is unanimous agreement among neuroscientists and psychologists that the human brain operates best when it is regularly subjected to new challenges. We have recently discovered that the brain benefits from a broad variety of problem-solving activities such as crossword puzzles and Sudoku. There also appear to be…
So, the first priority for getting the highest brain j performance is to consume sufficient amounts of protein each day. Insights are cognitively taxing to the human brain, so it makes sense that fueling our neurotransmitters with high-octane fuel —protein —is essential for high-powered thinking. Next come…
When faced with complexity, our first response is to retreat to the familiar, even if the familiar means failing. But in addition to reverting to what is familiar, we also have another reaction: fear. We are hardwired to perceive real change as threatening, so we instinctively reject it. Sure, a few of us have the…
As humans, we can identify galaxies light years away, we can study particles smaller than an atom. But we still haven’t unlocked the mystery of the three pounds of matter that sits between our ears. (Laughter.) But today, scientists possess the capability to study individual neurons and figure out the main functions…
In a recent study, a group of psychologists decided to see if this differential reaction is simply behavioral, or if it actually goes deeper, to the level of brain performance. The researchers measured response-locked event-related potentials (ERPs)—electric neural signals that result from either an internal or…
Even something that has been traditionally seen as the purview of the young—the ability to learn new languages —continues to change the landscape of the brain late into life. When a group of adults took a nine-month intensive course in modern standard Chinese, their brains’ white matter reorganized progressively (as…
In the earliest days of research, memory was thought to be populated with socalled engrams, memory traces that were localized in specific parts of the brain. To locate one such engram—for the memory of a maze—psychologist Karl Lashley taught rats to run through a labyrinth. He then cut out various parts of their brain…
Experience rearranges anatomical connectivity in the brain, but such plasticity is suppressed in adulthood. We examined the turnover of dendritic spines and axonal varicosities in the somatosensory cortex of mice lacking Nogo Receptor 1 (NgR1). Through adolescence, the anatomy and plasticity of ngr1 null mice are…