TagBrain Hacking

Science of love – new study on love and hormones

hormones

Couples should not worry when the first flush of passion dims – scientists have identified the hormone changes which cause the switch from lust to cuddles.

A team from the University of Pisa in Italy found the bodily chemistry which makes people sexually attractive to new partners lasts, at most, two years.

When couples move into a “stable relationship” phase, other hormones take over, Chemistry World reports.

But one psychologist warned the hormone shift is wrongly seen as negative.

Dr Petra Boynton, of the British Psychological Society, said there was a danger people might feel they should take hormone supplements to make them feel the initial rush of lust once more.

BBC: Sex chemistry ‘lasts two years’

(Thanks Paul!)

See also the work of Helen Fisher.

Operations on certain parts of the brain result in increased feelings of spirituality

spiritual centers of the brain

Spirituality was tracked to the the left inferior parietal lobe (left) and the right angular gyrus (right).

Removing part of the brain can induce inner peace, according to researchers from Italy. Their study provides the strongest evidence to date that spiritual thinking arises in, or is limited by, specific brain areas.

To investigate the neural basis of spirituality, Cosimo Urgesi, a cognitive neuroscientist at the University of Udine, and his colleagues turned to people with brain tumours to assess the feeling before and after surgery. Three to seven days after the removal of tumours from the posterior part of the brain, in the parietal cortex, patients reported feeling a greater sense of self-transcendence. This was not the case for patients with tumours removed from the frontal regions of the brain. […]

Probably the most worrisome aspect of the study is the way the authors measured self-transcendence. “It’s important to recognize that the whole study is based on changes in one self-report measure, which is a coarse measure that includes some strange items,” says cognitive neuroscientist Richard Davidson of the University of Wisconsin-Madison. “In the future, it will be important to understand why lesions in the parietal cortex induce changes on this scale.”

“Self-transcendence is an abstract concept, and different people will attribute different meanings to the word,” says Vandenberghe. Patient self reporting is not always accurate, he says, adding that tapping into spirituality with more rigorous behavioural measures and pinpointing the specific thoughts and feelings that constitute it are the obvious next steps.

Nature: Brain surgery boosts spirituality

(via Cat Vincent)

Blindsight – the ability to recognize facial expressions while blind

blind sight

Researchers began examining him and discovered that despite his blindness, he had maintained the ability to detect emotion on a person’s face. He responded appropriately?—?with emotions such as joy, fear, and anger?—?to a variety of facial expressions. Observed activity in his amygdala?—?the part of the brain responsible for processing emotions?—?confirmed the curious results.

TN’s rare condition is known as blindsight. Because his stroke damaged only his visual cortex, his eyes remain functional and as a result can still gather information from his environment. He simply lacks the visual cortex to process and interpret it. Sight has changed for TN from a conscious to a largely subconscious experience. He no longer has a definitive picture of his surroundings, but he has retained an innate awareness of his position in the world. He is, to some degree, able to see without being aware that he is seeing.

Seed: A blind man shocks researchers with what he sees.

(via Theoretick)

Novelty Lures Rats from Cocaine-Paired Settings, Hinting at New Treatments for Recovering Addicts

erase addiction

he brain’s innate interest in the new and different may help trump the power of addictive drugs, according to research published by the American Psychological Association. In controlled experiments, novelty drew cocaine-treated rats away from the place they got cocaine.

Novelty could help break the vicious cycle of treatment and relapse, especially for the many addicts with novelty-craving, risk-taking personalities, the authors said. Drug-linked settings hold particular sway over recovering addicts, which may account in part for high rates of relapse.

Science Daily: Novelty Lures Rats from Cocaine-Paired Settings, Hinting at New Treatments for Recovering Addicts

(via Wade)

(Photo: Alan Cleaver / CC BY 2.0)

The Neuroscience of Jazz Improvisation

neuroscience of jazz

Researches conducted functional MRI brain scans on 6 skilled jazz musicians while they improvised to learn about the neuroscience of jazz improvisation.

The prefrontal cortex was characterized by a deactivation during improvisation, sensorimotor activity in the sensory cortex area were mostly activated, and a widespread deactivation of the limbic and paralimbic region during improvisation. These deactivation of limbic and paralimbic regions were seen in the amygdala, hippocampus and hypothalamus and other structures of this region.

The changes in the prefrontal cortex consisted of a deactivation in the lateral parts and activation in the medial parts of the prefrontal cortex. The medial part is thought to play a role in the complex phenomenon of the self, internally motivated self generated content and as such this activation can be explained by the fact that improvisation is also a way of expressing one’s own musical voice or story. The deactivation of the lateral part is explained by the occurrence of free floating attention, permitting spontaneous expressions without interference of self-monitoring.

ShockMD: The Neuroscience of Jazz

(via CC)

Self-control is contagious, study finds

smart hulk

Before patting yourself on the back for resisting that cookie or kicking yourself for giving in to temptation, look around. A new University of Georgia study has revealed that self-control — or the lack thereof — is contagious.

In a just-published series of studies involving hundreds of volunteers, researchers have found that watching or even thinking about someone with good self-control makes others more likely exert self-control. The researchers found that the opposite holds, too, so that people with bad self-control influence others negatively. The effect is so powerful, in fact, that seeing the name of someone with good or bad self-control flashing on a screen for just 10 milliseconds changed the behavior of volunteers.

“The take home message of this study is that picking social influences that are positive can improve your self-control,” said lead author Michelle vanDellen, a visiting assistant professor in the UGA department of psychology. “And by exhibiting self-control, you’re helping others around you do the same.”

PhysOrg: Self-control is contagious, study finds

(via Social Physicist)

Interview with neurodiversity advocate Kassiane

ASL sign for autism

Above: Kassiane giving the The American Sign Language sign for “autism.” The sign, which evokes the notion of “closed off,” raises issues in the neurodiversity community.

Kassiane, who prefers I don’t run her last name, is a neurodiversity advocate based in Portland, OR. She was born autistic & epileptic and has spoken at neurodiversity conferences around the world. She spoke to me via instant messenger. You can read her blog here.

Klint Finley: Could you give us a brief overview of what “neurodiversity” means, or at least what it means to you?

Kassiane: Neurodiversity, the word, simply means the whole variety of different brain wirings people have…from the different kinds of normal to the different kinds of not so normal. Then there’s Neurodiversity, the movement which is the shocking idea that people with non standard wiring are human and deserve to be treated as such without being “fixed” first.

What conditions may be included in the movement?

Autistic/Asperger people tend to make up the base of the movement, because we latch onto things so well, but we’re really inclusive…ADHD, learning disabilities, mental health issues, cognitive conditions like Down Syndrome, epilepsy, migraines, neurotypical allies, Not Diagnosed Just Weird…we’re accepting of pretty much everyone.

Is there a point at which a line is drawn between “neurodiverse” and disabled?

The 2 aren’t mutually exclusive. You can be different and disabled, but being disabled doesn’t keep you from being a human worthy of respect.

How did you get involved in the neurodiversity movement?

I was born autistic & epileptic, & being told I’m broken hasn’t ever gone over well with me. When I was 16 or 17 I read autistics.org and saw there are other people who feel the same way, and it was like “Hot damn! community! whee!” and it just snowballed from there.

Are you involved in any particular organizations?

I’m involved with ASAN-Autistic Self Advocacy Network, & have done several conferences for Autism National Committee.

i am not a puzzle i am a person

Can you tell us about some of the activism you’ve been involved with?

Way back in the day at a big conference we petitioned to get a very abusive school kicked out of the exhibit hall of said large conference. Since the school in question doesnt believe in human rights it was big gesture, small step–we’ve been working to have them closed down for years.

ASAN has recently taken to picketing events that seek to eradicate autistic & other neurodivergent people, to show the public that eradication isn’t the only viewpoint. We’ve also done a lot of writing to congress and other important people.

I was also involved in the petitioning to have a teacher in Florida who voted a kid out of her classroom delicensed, though that’s all still pending.

Can you be more specific than “events that seek to eradicate autistic & other neurodivergent people”? What particular organizations do you think are problematic?

Oh, Autism Speaks. They totally need to climb a rope and let go. As do Defeat Autism Now!, TACA, and and Generation Rescue.

In what way do they seek to eradicate autistic people?

Prenatal testing to prevent us from being born, specifically. And then there’s the wackaloons who think it’s ok to kill us, who are always fun.

Who are the Wackaloons?

It’s a generic term that here means “person so far disconnected from realityland that I’m not sure how to deal with them” there are wackaloons in all those groups. They pop out of the woodwork when a kid is killed, or an adult, which happens far too often.

Gotcha. And so some wackaloons think it’s ok to kill autistic people who have already been born? What, as some sort of euthanasia? How common is that?

Well, this website is incomplete. And with every one of those in my memory, there were people defending the murderers. Not to mention the one I followed most closely in 2006 or so, where the whole town and even the newspaper were supportive of the killer.

Should neurodiversity be important to “neurotypicals”?

Of course.

Why?

I assume that a cookie cutter world is boring to you. And many people won’t be neurotypical forever. Besides that whole “civil rights” thing, which majorities aren’t always so awesome at.

By “many people won’t be neurotypical forever” are you referring to cognitive decline people experience with age?

Cognitive decline, head injuries, infections that affect the brain, neurological diseases, stroke…brains are fragile

Do you think the criminal justice system should treat people with an autism spectrum diagnoses differently than a “neurotypical” person?

It depends on the person, & on what they did. Like, if I go knock over the 7/11, I’m fully capable of knowing that’s wrong and of not doing it. But if someone has an irresistable compulsion to, say, go stare at fountains and gets arrested for tresspassing for staring at a fountain, their neurology may need to be taken into account.

Autism surely isn’t a get-out-of-jail-free card.

What do you think about use of the “r-word”?

Uhm. I hate it with the passion of 100,000,000 firey suns and have nearly gotten the shit kicked out of me on the bus for expressing this loathing.

To be honest I hadn’t really thought about it much before I read you ranting about it on Twitter a while back. But on further examination it’s weird how many people (myself included, unfortunately) would use the word without giving it a second thought, but would never defend the use of racial slurs.

Exactly! or they get all offended about homophobic slurs, but they throw around the r-word like a tennis ball. seriously? It’s not ok. It’s only remained ok because the people who it’s actually slamming are often unable to tell the ones using it to shove it.

It’s all about the power dynamics, & lack of creativity in insults.

What about using the suffix “tard” to create new slurs for specific groups (itards for Apple users, Paultards for Ron Paul supporters, etc.)?

That’s not any better. It’s not even creative. And it still comes from a place that says it’s ok to slam people who are cognitively disabled, and from a place that says “these people hold irrational to me beliefs because they’re cognitively impaired”

A year or two ago I read an article musing on the possibilities of creating pills that could temporarily “cure” or even *cause* autism. The basic idea is that someone born with autism could take a pill to become neurotypical at a party, or a neurotypical person could take a pill to become autistic temporarily to accomplish some particular task. Scientific feasibility aside, what do you think about such a possibility.

It’d be confusing in the extreme.

I couldn’t function in an NT brain, any more than you could function in my autistic brain. I’m USED to hearing and seeing and taking in everything and focusing on the details. Take that all away & for the duration of the dose, I’d be lost.

Give an NT autistic-like thought processes and perception, & they couldnt use the pattern recognition or hyperfocus or whatever…they’d be too busy looking for better earplugs and sunglasses because the lights are loud and flickering. Scientific feasability aside, there’s no way anyone would actually use it.

You can dual boot a computer. You can’t dual boot a brain.

More Information

The Autism Rights Movement article in New York Magazine.

Autistic Self-Advocacy Network

neurodiversity.com

Human Brain Uses a Triangler Grid to Represent Space

triangular Grid

A virtual reality environment which human participants explored while lying in an fMRI brain scanner. An example of the spatially-organised firing pattern of a grid cell is overlaid on the arena floor.

A virtual reality environment which human participants explored while lying in an fMRI brain scanner. An example of the spatially-organised firing pattern of a grid cell is overlaid on the arena floor.

‘Grid cells’ that act like a spatial map in the brain have been identified for the first time in humans, according to new research by UCL scientists which may help to explain how we create internal maps of new environments. […]

Grid cells represent where an animal is located within its environment, which the researchers liken to having a satnav in the brain. They fire in patterns that show up as geometrically regular, triangular grids when plotted on a map of a navigated surface. They were discovered by a Norwegian lab in 2005 whose research suggested that rats create virtual grids to help them orient themselves in their surroundings, and remember new locations in unfamiliar territory.

Study co-author Dr Caswell Barry said: “It is as if grid cells provide a cognitive map of space. In fact, these cells are very much like the longitude and latitude lines we’re all familiar with on normal maps, but instead of using square grid lines it seems the brain uses triangles.

Science Daily: Human Brain Uses a Grid to Represent Space

“God Helmet” inventor claims to have discovered magnetic telepathy link

shiva head

Well, what’s going on in the laboratory – and I have some fantastic graduate students and we work together as a team – and what we have found for example, is that if you place two different brains, two different people at a distance, you put a circular magnetic field around both. There’s a magnetic field going around like a coil, around both brains even at a distance. You make sure both coils are connected to the same computer which means they’re generating the same configuration of two different spaces.

If you flash a light in one person’s eye, even though they’re in a chamber that’s closed up, the person in the other room that’s receiving just the magnetic field now, they’re not aware of the light flashing or not, they will show similar changes in frequency in the room. And we think that’s tremendous because that maybe the first macro demonstration of a quantum connection or so-called quantum entanglement. And if that’s true then there’s another way of potential communication that may have physical application and application, for example, in space travel because there’s no time involved with it. That’s one thing we’re looking at. That’s one of our more exotic hypotheses.

Skeptiko: “God Helmet” Inventor, Dr. Michael Persinger Discovers Telepathy Link in Lab Experiments

(via Electric Children)

I think it’s worth mentioning that other researchers have failed to reproduce Persinger‘s “god helmet” results. (See: The God Experiments). Which doesn’t mean his latest results will prove unreproducible, but I think it should lead readers to be very skeptical of his claims.

Those Less Motivated to Achieve Will Excel on Tasks Seen as Fun

team work puzzle

Those who value excellence and hard work generally do better than others on specific tasks when they are reminded of those values. But when a task is presented as fun, researchers report, the same individuals often will do worse than those who say they are less motivated to achieve.

The study appears in the Journal of Personality and Social Psychology.

The findings suggest that two students may respond quite differently to a teacher’s exhortation that they strive for excellence, said University of Illinois psychology professor Dolores Albarracín, who conducted the research with William Hart, of the University of Florida.

One may be spurred to try harder, while another could become less motivated.

The study also suggests that those who are “chronically uninterested in achievement” are not operating out of a desire to do badly, Albarracín said. Their differing responses simply may reflect the fact that they have different goals.

Science Daily: Those Less Motivated to Achieve Will Excel on Tasks Seen as Fun

I read about a similar study years ago statistics class that I’ve never been able to track back down*, so I’m very glad to have found this article today. The study I read about found that different groups of people performed differently on certain puzzles depending on whether they were presented as “work” or “games.”

*I thought I read it in my statistics text book, but I’ve scoured it cover to cover so now think it must have been a hand-out or part of a test question.

(image from Lumaxart)

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