The Science of "Intuition"
Geege Schuman stashed this in Psychology
Citing recent research, Pigliucci presents an important debunking of the grab-bag term “intuition”:
One of the first things that modern research on intuition has clearly shown is that there is no such thing as an intuitive person tout court. Intuition is a domain-specific ability, so that people can be very intuitive about one thing (say, medical practice, or chess playing) and just as clueless as the average person about pretty much everything else. Moreover, intuitions get better with practice — especially with a lot of practice — because at bottom intuition is about the brain’s ability to pick up on certain recurring patterns; the more we are exposed to a particular domain of activity the more familiar we become with the relevant patterns (medical charts, positions of chess pieces), and the more and faster our brains generate heuristic solutions to the problem we happen to be facing within that domain.
I feel as if we've had this conversation before. :)
Ha! I walked right into that one. Deju Vu is not intuition though. Or is it?
brainpickings is pretty good
Pigliucci offers a primer on what intuition is and isn’t, compared and contrasted with the history of understanding consciousness:
The word intuition comes from the Latin intuir, which appropriately means ‘knowledge from within.’ Until recently, intuition, like consciousness, was the sort of thing that self-respecting scientists stayed clear of, on penalty of being accused of engaging in New Age woo-woo rather than serious science. Heck, even most philosophers — who historically had been very happy to talk about consciousness, far ahead of the rise of neurobiology — found themselves with not much to say about intuition. However, these days cognitive scientists think of intuition as a set of nonconscious cognitive and affective processes; the outcome of these processes is often difficult to articulate and is not based on deliberate thinking, but it’s real and (sometimes) effective nonetheless. It was William James, the father of modern psychology, who first proposed the idea that cognition takes place in two different modes, and his insight anticipated modern so-called dual theories of cognition. Intuition works in an associative manner: it feels effortless (even though it does use a significant amount of brain power), and it’s fast. Rational thinking, on the contrary, is analytical, requires effort, and is slow. Why, then, would we ever want to use a system that makes us work hard and doesn’t deliver rapid results? Think of it this way: intuitions, contrary to much popular lore, are not infallible. Cognitive scientists treat them as quick first assessments of a given situation, as provisional hypotheses in need of further checking.
There are a variety of reasons, but two are especially important: one needs to develop the ability to anticipate problems, and this in turn is often the result not just of knowledge of a given field but of structured knowledge. … Not only is there a difference between naive and expert knowledge, but there is more than one way to acquire expert knowledge, guided not just by the intrinsic properties of the system but also by the particular kinds of interest that different individuals have in that system.
Part of the opacity on intuition continues because of the scientific assumption that cognitive function and conscious understanding resides solely in the brain and is a product of our own pattern recognition. It doesn't and it isn't. It's much more direct and obvious than that.
The enteric brain in our guts is a major sensate organ that is connected directly to our nervous system and produces most of our non-language based awareness through the vagus nervous system, driving up to 90% of our ongoing understanding of our environment into our head by ... wait for it... fully articulated gut feelings.
More needs to be studied here but first we need to go back to original assumptions and change our point of view while we cease trying to rationalize that everything comes out of our heads. Being big-brain centric is simply physically and neurologically inaccurate.
There's so much more to learn here if we just stopped being so damn heady about rationalizing everything...
Here I thought the second brain was driven by the bacteria in the microbiome.
Little did I realize there's also a giant neural network in there:
Technically known as the enteric nervous system, the second brain consists of sheaths of neurons embedded in the walls of the long tube of our gut, or alimentary canal, which measures about nine meters end to end from the esophagus to the anus. The second brain contains some 100 million neurons, more than in either the spinal cord or the peripheral nervous system, Gershon says.
The second brain informs our state of mind in other more obscure ways, as well. "A big part of our emotions are probably influenced by the nerves in our gut," Mayer says. Butterflies in the stomach—signaling in the gut as part of our physiological stress response, Gershon says—is but one example. Although gastrointestinal (GI) turmoil can sour one's moods, everyday emotional well-being may rely on messages from the brain below to the brain above. For example, electrical stimulation of the vagus nerve—a useful treatment for depression—may mimic these signals, Gershon says.
Given the two brains' commonalities, other depression treatments that target the mind can unintentionally impact the gut. The enteric nervous system uses more than 30 neurotransmitters, just like the brain, and in fact 95 percent of the body's serotonin is found in the bowels. Because antidepressant medications called selective serotonin reuptake inhibitors (SSRIs) increase serotonin levels, it's little wonder that meds meant to cause chemical changes in the mind often provoke GI issues as a side effect. Irritable bowel syndrome—which afflicts more than two million Americans—also arises in part from too much serotonin in our entrails, and could perhaps be regarded as a "mental illness" of the second brain.
Scientists are learning that the serotonin made by the enteric nervous system might also play a role in more surprising diseases: In a new Nature Medicine study published online February 7, a drug that inhibited the release of serotonin from the gut counteracted the bone-deteriorating disease osteoporosis in postmenopausal rodents. (Scientific American is part of Nature Publishing Group.) "It was totally unexpected that the gut would regulate bone mass to the extent that one could use this regulation to cure—at least in rodents—osteoporosis," says Gerard Karsenty, lead author of the study and chair of the Department of Genetics and Development at Columbia University Medical Center.