Posts Tagged ‘brain’

Brain Science: Does Being Left-Handed Make You Angry?

But I know plenty of right-handed people who are not balanced.  Whatever. – Ilene 

Brain Science: Does Being Left-Handed Make You Angry?

By JOHN CLOUD, courtesy of TIME

TIME - brain picture

INGRAM PUBLISHING / GETTY IMAGES

We used to think that the left brain controlled your thinking and that the right brain controlled your heart. But neuroscientists have learned that it’s a lot more complicated.

In 2007, an influential paper in the journal Behavioral and Brain Functions found that while most of us process emotions through the right hemisphere of the brain, about 35% of people — especially victims of trauma — process their hurt and anger through their left brain, where logic and language sit. That may be because they had worked so hard to explain, logically, why they were suffering. But pushing emotions through the left brain taxed it: these people performed significantly worse on memory tests.

Now a new paper — out in the September issue of The Journal of Nervous and Mental Disease — further complicates the picture with a surprising finding: whether you are right-handed, left-handed or ambidextrous (which the authors call, rather delightfully, “inconsistently handed”) seems to be an important clue in understanding how you use your brain to process emotions.

It’s been known for some time that lefties and the ambidextrous are more prone to negative emotions. The new study shows that they also have a greater imbalance in activity between the left and right brains when they process emotions. Of course, you can’t be sure which comes first: maybe angry people are more out of balance, or maybe the inability to find equilibrium makes you angry. As for the left-handed: maybe they’re more angry because the world is designed for the right-handed majority.

The study also used an interesting method to find that angry people are, literally, hot-headed: the authors of the paper — led by Ruth Propper, a psychology professor at Merrimack College in Massachusetts — measured brain-hemisphere activation with a relatively old method called tympanic membrane temperature, which is essentially how hot it is in your inner ear. If you get angry a lot, your head tends to be warmer.

One problem is that the study was small — just 55 undergraduates participated (they were paid $20 each for having to endure ear-temperature tests and psychological questioning). Also, The Journal of Nervous and Mental Disease, while peer-reviewed, is one of less-respected psychology journals. Still, I like…
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Omega-3 lesson: Not so much brain boost as fishy research

This is a good article highlighting how scientific research gets misrepresented in the media, making it important to go to the original source.  Moreover, often an experiment measures one thing (a surrogate) but makes conclusions that go well beyond what was actually measured. (E.g. high cholesterol levels being used as a surrogate for heart attack risk.) – Ilene 

Omega-3 lesson: Not so much brain boost as fishy research

By Ben Goldacreguardian.co.uk

Fish oil helps schoolchildren to concentrate ran a headline in the Observer. Regular readers will remember the omega-3 fish oil pill issue. The entire British news media has been claiming for several years now that there are trials showing that the pill improves school performance and behaviour in mainstream children, despite the fact that no such trial has ever been published.

There is something very attractive about the idea that solutions to complex problems in education lie in a pill.

[...]

This paper showed no difference in performance at all. Since it was a brain imaging study, not a trial, the results of the children’s actual performance in the attention task was only reported in a single paragraph. But these results were clear: "There were no significant group differences in percentage correct, commission errors, discriminability, or reaction time."

So this is all looking pretty wrong. Are we even talking about the same academic paper? I’ve a long-standing campaign to get mainstream media to link to original academic papers when they write about them, at least online, with some limited success on the BBC website. I asked the writer Campbell which academic paper he was referring to, but he declined to answer, and passed me on the Stephen Pritchard, the readers’ editor for the Observer, who answered a couple of days later to say he did not understand why he was being involved. Eventually Campbell confirmed, but through Pritchard, that it was indeed a paper from the April edition of the American Journal of Clinical Nutrition.

[...]

Similarly, drug reps and researchers will often announce that their intervention has some kind of effect on some kind of elaborate measure of some kind of surrogate outcome: maybe a molecule in the blood goes up in concentration, or down, in a way that suggests the intervention might be effective.

This is all very well. But it’s not the same as showing that something really does actually work back here in


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How your brain remembers the future

Déjà vu, all over again.

How your brain remembers the future

Image Of Thinking Man's Brain Through Bowler Hat

By NewScientist

IT’S like remembering the future. Our brain generates predictions of likely visual inputs so it can focus on dealing with the unexpected.

Predictable sights trigger less brain activity than unfamiliar stimuli, bolstering the view that the brain is not merely reactive, but generates predictions based on the recent past. "The brain expects to see things and really just wants to confirm it now and again," says Lars Muckli at the University of Glasgow, UK.

[...]

The finding supports the "Bayesian brain" theory, which sees the brain as making predictions about the world which it updates when new information comes in.


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Driven toward reward without regard for consequence

This is interesting. However, the conclusion that "individuals with antisocial personality disorder may not be unaware of… consequences… but instead that their intense reward-seeking motivation consumes their attention wholly until they have fulfilled their desire for reward" seems overstated, and only a small piece of the psychopath puzzle.

For a different perspective, that of a financial writer, and an even farther-fetched conclusion, read the second article below. The same data can be interpreted to show that a trader taking on excessive risk is "hopped up on dopamine" so they can’t see negative consequences, making them "kind of a psychopath." Take all this with a grain of salt haloperidol. - Ilene 

Driven toward reward without regard for consequence

Courtesy of TIME, by Tiffany O’Callaghan

TIMEAn overactive dopamine reward system in the brain may help explain why psychopaths pursue rewards without regard for consequences, according to new research published this week in the journal Nature Neuroscience. Previous research has found that individuals who suffer from antisocial personality disorder—often referred to as sociopathology or psychopathology, despite debate over whether these are distinct conditions—lack empathy and fear. Yet this new study, from researchers at Vanderbilt University examines what these individuals may have in excess. According to the study, led by Joshua Buckholtz, a graduate student in psychology at Vanderbilt, individuals with antisocial personality disorder traits show signs of dysfunction in dopamine reward systems—suggesting that, in psychopaths, the drive toward reward can overwhelm all else.

Prior to participating in two different experiments, study subjects completed personality tests to identify presence and severity of psychopathic characteristic—including aggression, lack of empathy, and capacity for manipulation, among other things. Drawing on previous research that has established a strong link between substance abuse and psychopathology, in the first experiment researchers gave participants amphetamine, then used functional Magentic Resonance Imaging (fMRI) brain scans to monitor how dopamine release was affected by the stimulant. In a second experiment, study participants were told that they would be paid for performing a simple task, and researchers conducted brain scans while they completed the tasks.

In both experiments, researchers found that participants who had psychopathic characteristics according to the personality test, were more likely than those without those traits to have greater activity in the nucleus accumbens, the area of the brain associated with dopamine reward processing—whether in response to the chemical stimulant, or the suggestion of monetary reward.

The findings suggest that individuals


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The Neuroeconomics Revolution

Fascinating article by Psy-Fi’s Tim.  (My yellow highlighting.) – Ilene

The Neuroeconomics Revolution

Courtesy of Tim at The Psy-Fi Blog

Blond Bride and a Half-dressed Punk Groom Getting Married in a Church

Marriage Made in Heaven – or Hell?

A recent development in economics sees the combining of neurology, psychology and economics in an attempt to reduce economic behaviour to brain function and to predict market behaviour from observable brain patterns. Its aim is to glue together a subject that can’t predict human behaviour from analysis of the brain with a subject that can’t predict human behaviour from analysis of people to a subject that can’t predict human behaviour from analysis of economic data.

Welcome to the Neuroeconomics Revolution.

The Busted Flushes of Psychology and Economics

Psychology spent a large part of the last century stuck in a behaviourist dead-end, carrying out endless experiments on animals in an attempt to explain all human behaviour in terms of externally observable responses to equally observable stimuli: think ringing bells causing salivating dogs or rising markets causing manic investors. The net result of this was that the subject ended up befuddled by mice running the wrong way around mazes and found itself generally regarded as the extreme paramilitary wing of the pigeon fanciers association.

Meanwhile economics, the study of how human financial systems operate, also proceeded on the basis that how humans actually behave was irrelevant and arrived at a set of explanations that defied both logic and the evidence of real markets. Yet even as economics has reluctantly faced up to the need to involve psychology in its models so psychology is beginning to recognise that understanding people requires a more detailed look at the way the brain actually works. Taken together we’re witnessing the creation of a new subject.

Neuroeconomics

Neuroeconomics is nothing more or less than the attempt to relate the now observable functioning of the brain, as provided by neuroscientific techniques, with the various models of economics. Advances in brain scanning techniques permit researchers to subject innocent participants to endless pointless questions while inspecting how their brains grapple with the problems. There is no escape.

As you might imagine, the marketeers of the world have leapt on this idea. Martin Lindstrom relates in Buyology how the inspection of people’s brains reveals what more…
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Can Dopamine Make Your Future Look Brighter?

Our choices are dramatically influenced by the chemicals circulating through our bodies – so how much free choice do we really have? Is free will just an illusion?  - Ilene

Can Dopamine Make Your Future Look Brighter?

By John Cloud, courtesy of TIME

Tourism In Florida Falls Almost 10 Percent During Second Quarter

Humans have expended a great deal of intellectual energy over the past few thousand years trying to understand the morality (or amorality) of seeking pleasure. Most of philosophy begins with the question of what defines the (or a) good life. But what if the answer to what makes us happy comes down to how much of a particular chemical is circulating in our brain at any particular moment?

(As with risk taking, romantic love, religousness…. – Ilene)

The neurotransmitter dopamine isn’t quite that powerful, but evidence has been mounting for the past 40 years that its activity is key to helping the brain recognize experiences that cause pleasure. The more dopamine a certain event (having sex or eating ice cream, say) triggers, the more strongly that event gets hard-wired in the brain, and the more intensely your brain drives you to revisit it.

That knowledge also helps the brain figure out how much pleasure it can expect from future experiences and, therefore, influences virtually any decision you make about what you might like or not like: whether you should buy the red shirt or black one, whether you’ll enjoy watching Top Chef over Mad Men, whether you should leave your job or whether you should move in with your boyfriend.

Now a new paper in the journal Current Biology shows for the first time that by tinkering with levels of dopamine in the brain, researchers were be able to influence people’s future decisions in a reliable, predictable way. Led by Tali Sharot and Tamara Shiner of the the Wellcome Trust Center for Neuroimaging at University College London, scientists presented 61 healthy volunteers with 80 different vacation locations, such as Brazil, Thailand and Greece, and asked the volunteers to rate how happy they thought they would be visiting each place. Later, 29 of the participants were given 100 mg of levodopa (or L-DOPA), a drug that increases dopamine in the brain; the other 32 were unwittingly given a sugar pill. Forty minutes later, each participant was given a questionnaire about their emotional state, then a list…
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Disorderly genius: How chaos drives the brain

Here’s a fascinating New Scientist article on how your brain works, swinging back and forth between order and chaos, neurons firing away in a blizzard of random activity. – Ilene

Disorderly genius: How chaos drives the brain 

chaotic brain, geniusBy David Robson

HAVE you ever experienced that eerie feeling of a thought popping into your head as if from nowhere, with no clue as to why you had that particular idea at that particular time? You may think that such fleeting thoughts, however random they seem, must be the product of predictable and rational processes. After all, the brain cannot be random, can it? Surely it processes information using ordered, logical operations, like a powerful computer?

Actually, no. In reality, your brain operates on the edge of chaos. Though much of the time it runs in an orderly and stable way, every now and again it suddenly and unpredictably lurches into a blizzard of noise.

Neuroscientists have long suspected as much. Only recently, however, have they come up with proof that brains work this way. Now they are trying to work out why. Some believe that near-chaotic states may be crucial to memory, and could explain why some people are smarter than others.

In technical terms, systems on the edge of chaos are said to be in a state of "self-organised criticality". These systems are right on the boundary between stable, orderly behaviour – such as a swinging pendulum – and the unpredictable world of chaos, as exemplified by turbulence…

 Full article here.

 


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Zero Hedge

Our "Gaslight" Economy

Courtesy of ZeroHedge. View original post here.

Submitted by Charles Hugh-Smith via OfTwoMinds blog,

If you don't like what these charts are saying, please notify The Washington Post to add the St. Louis Federal Reserve to its list of Russian propaganda sites.

Yesterday I described our gaslight financial system. Today we'll look at our gaslight economy. Correspondent Jason H. alerted me to the work of author Thomas Sheridan (...



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ValueWalk

PIA Flight PK-661 With 47 Oboard Crashes Near Abbottabad [List Of Passengers]

By Vikas Shukla. Originally published at ValueWalk.

A Pakistan International Airlines (PIA) flight on its way from Chitral to Islamabad on Wednesday has reportedly crashed near Havelian in Abbottabad. The PIA flight PK-661 departed from Chitral at 3:30 pm local time, and was supposed to reach Islamabad’s Benazir Bhutto International Airport at 4:40 pm. The plane disappeared from the air control radar soon after the take-off.

Image source: Faisal Akram / FlickrJunaid Jamshed and his family were among 47 onboard

There were 47 people on board the plane, including five crew members. The list of passengers included popular singer Junaid Jamshed and his family. According to ...



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Kimble Charting Solutions

Gold Bugs testing support cluster at this time!

Courtesy of Chris Kimble.

Gold Mining stocks started off the year like a rocket ship. Over the past 20-weeks, the popular Gold Miners ETF (GDX) has declined nearly 35%. This is one of its larger 20-week declines in its history! Create an opportunity? We think so!

This decline has the Gold Bugs Index (HUI) at a rare price point in the chart below.

CLICK ON CHART TO ENLARGE

...

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Phil's Favorites

News You Can Use From Phil's Stock World

 

Financial Markets and Economy

European Stocks Rally for a Third Day Ahead of ECB Meeting (Bloomberg)

European stocks on Wednesday added to the previous session’s sharp gains, boosted by advances in miners and banks. Optimism the European Central Bank will extend its stimulus program at Thursday’s meeting has spurred equity gains this week, particularly in so-called peripheral markets perceived as riskier.

Oil Extends Drop as U.S. Output Seen Countering OPEC Supply Cuts (Bloomberg)

Oil extended declines below $51 a barrel amid speculation a p...



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Market News

News You Can Use From Phil's Stock World

 

Financial Markets and Economy

Oil falls on output cut skepticism, OPEC and Russia output rise (Reuters)

Oil prices on Tuesday ended lower for the first time since OPEC agreed on Nov. 30 to cut output, as data showing record high production in the producer group fed skepticism that it would be able to reduce supplies.

Brazil’s Reform Plan in Disarray After Senate Chief Removed (Bloomberg)

Brazil’s economic reform plan was thrown into disarray after a Supreme Court justice removed Senate chief Renan Calheiros just days before the upper house was scheduled to vote on a crucial spending cap bill. ...



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Chart School

Russell 2000 in Take Profit Territory

Courtesy of Declan.

The Russell 2000 pushes again into the 10% zone of historic high prices (1,388 would be enough for the 5% zone last seen in February 2011). Back in 2011 the index rallied for another couple of months before it lost 30% from its high.  The next few weeks would be a good opportunity to take some money off the table to use on the next swing low.


On the Daily chart the 'sell' trigger in MACD reversed with a new 'buy' trigger.

...

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Members' Corner

Trump, Meet The New Boss?

Courtesy of Nattering Naybob.

Over at Philstockworld... High Finance for Real People - Fun and Profits... 

StJL - "Once again, I think that the middle class voters who turned in great numbers for Trump will soon realize that they voted against their best economic interest. Trump will only be part of the equation – the GOP Congress can't wait to weaken the social safety nets that are so needed by the same people who are so happy today. But too late now I guess"
No surprises here as all along we maintained the memory of what happened in 2000. With that fresh in mind, rather than forgotten in the past, we knew that given the indoctrination of the electorate, anything was possible and history keeps repeating itself...

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Promotions

Phil's Stock World's Las Vegas Conference!

 

Come join us for the Phil's Stock World's Conference in Las Vegas!

Date:  Sunday, Feb 12, 2017 and Monday Feb 13, 2017.            

Beginning Time:  8:00 am Sunday morning

Location: Caesar's Palace in Las Vegas

Notes

Caesar's has tentatively offered us rooms for $189 on Saturday night and $129 for Sunday night. However, we have to sign the contract ASAP. We need at least 10 people to pay me via Paypal or we may lose the best rate for the rooms. (Once we are guaranteed ten attendees, I will put up instructions to call the hotel for individual rooms.)

The more people who sign up,...



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OpTrader

Swing trading portfolio - week of December 5th, 2016

Reminder: OpTrader is available to chat with Members, comments are found below each post.

 

This post is for all our live virtual trade ideas and daily comments. Please click on "comments" below to follow our live discussion. All of our current  trades are listed in the spreadsheet below, with entry price (1/2 in and All in), and exit prices (1/3 out, 2/3 out, and All out).

We also indicate our stop, which is most of the time the "5 day moving average". All trades, unless indicated, are front-month ATM options. 

Please feel free to participate in the discussion and ask any questions you might have about this virtual portfolio, by clicking on the "comments" link right below.

To learn more about the swing trading virtual portfolio (strategy, performance, FAQ, etc.), please click here ...



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Digital Currencies

Largest US Bitcoin Exchange Is "Extremely Concerned" With IRS Crackdown Targeting Its Users

Courtesy of ZeroHedge. View original post here.

Last Thursday we reported that in a startling development seeking to breach the privacy veil of users of America's largest bitcoin exchange, the IRS filed court papers seeking a judicial order to serve a so-called “John Doe” summons on the San Francisco-based Bitcoin platform Coinbase.

The government’s request is part of a bitcoin tax-evasion probe, and se...



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Mapping The Market

The Most Overlooked Trait of Investing Success

Via Jean-Luc

Good article on investing success:

The Most Overlooked Trait of Investing Success

By Morgan Housel

There is a reason no Berkshire Hathaway investor chides Buffett when the company has a bad quarter. It’s because Buffett has so thoroughly convinced his investors that it’s pointless to try to navigate around 90-day intervals. He’s done that by writing incredibly lucid letters to investors for the last 50 years, communicating in easy-to-understand language at annual meetings, and speaking on TV in ways that someone with no investing experience can grasp.

Yes, Buffett runs an amazing investment company. But he also runs an amazing investor company. One of the most underappreciated part of his s...



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Biotech

Epizyme - A Waiting Game

Reminder: Pharmboy is available to chat with Members, comments are found below each post.

Epizyme was founded in 2007, and trying to create drugs to treat patient's cancer by focusing on genetically-linked differences between normal and cancer cells. Cancer areas of focus include leukemia, Non-Hodgkin's lymphoma and breast cancer.  One of the Epizme cofounders, H. Robert Horvitz, won the Nobel Prize in Medicine in 2002 for "discoveries concerning genetic regulation of organ development and programmed cell death."

Before discussing the drug targets of Epizyme, understanding epigenetics is crucial to comprehend the company's goals.  

Genetic components are the DNA sequences that are 'inherited.'  Some of these genes are stronger than others in their expression (e.g., eye color).  Yet, some genes turn on or off due to external factors (environmental), and it is und...



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All About Trends

Mid-Day Update

Reminder: Harlan is available to chat with Members, comments are found below each post.

Click here for the full report.




To learn more, sign up for David's free newsletter and receive the free report from All About Trends - "How To Outperform 90% Of Wall Street With Just $500 A Week." Tell David PSW sent you. - Ilene...

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About Phil:

Philip R. Davis is a founder Phil's Stock World, a stock and options trading site that teaches the art of options trading to newcomers and devises advanced strategies for expert traders...

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