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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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Insider Scoop

Delhaize Group Announces Sale of Bosnian & Herzegovinian Stores

Courtesy of Benzinga.

Related DEG Why Companhia Brasileira de Distribuicao (CBD) Has A Bright Short-Term Future? - Tale of the Tape The Fresh Market (TFM) in Focus: Stock Moves 6.7% Higher - Tale of the Tape

Delhaize Group (Euronext Brussels: DELB, NYSE: DEG), the Belgian international food retailer, announces that it has signed an agreement with Tropic Group B.V. on the sale of its Bosnian & Herzegovinian stores.

Delhaize Group has signed an agreement with Tropic Group B.V., to divest all of its 39 Bo...



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Phil's Favorites

Groupthink Or Black Swan Rising? Not A Single 'Economist' Expects An Economic Downturn

Courtesy of Pater Tenebrarum of Acting-Man

A 100% Consensus

This doesn't happen very often. Marketwatch reports that Jim Bianco points out in a recent market comment that the 67 economists taking part in a regular Bloomberg survey have a unanimous forecast regarding treasury bond yields: they will be higher 6 months from now. This is a truly striking result, and given the well-known propensity of mainstream economists to guess wrong (their forecasts largely consist of extrapolating the most recent short term trend), it may provide us with a few insights.

In fact, considering that there have been only a handful of instances since 2009 when a majority of the economists surveyed predicted a decline in yields, we can already state that their forecasts regarding tre...



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Zero Hedge

#MyNYPD...

Courtesy of ZeroHedge. View original post here.

Submitted by williambanzai7.

.

Actually, it is their NYPD, not ours.

...

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Chart School

Get Ready for Europe to Print

Courtesy of Doug Short.

Summary:

  • Core Eurozone CPI inflation rate falls to 0.70%, a multi-decade low
  • This occurs at a time when the PIGS' average unemployment rate rests near 24%
  • Deflation threat in Europe real as GDP in Europe likely to peak this year
  • European hawks moving towards dovish side of the fence, opening door for more QE
  • Implications: stronger European stock market, stronger USD, weaker commodity prices, stronger global growth

Back in February I laid the groundwork for why we should expect to see the European Central Bank (ECB) massively expand its balance sheet (see article). The case for expecting to see the ECB print is only increasing as core Eurozone inflation is c...



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All About Trends

Mid-Day Update

Reminder: David 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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Market Shadows

Soy Numero Uno

Soy Numero Uno

By Paul Price of Market Shadows

Bunge Limited (BG) is the world’s largest processor of soybeans. It is also a major producer of vegetable oils, fertilizer, sugar and bioenergy.

When commodities got hot in 2007-08, Bunge’s EPS shot up and the stock followed, rising 185% in 19 months.

The Great Recession took its toll on operations, dropping EPS to a low of $2.22 in 2009.  Since then profits have recovered.  They ranged from $4.62 - $5.90 in the latest three years. 2014 appears poised for a large increase. Consensus views from multiple sources see BG earning $7.04 - $7.10 this year and then $7.83 - $7.94 in 2015.

...



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Option Review

Casino Stocks LVS, WYNN On The Run Ahead of Earnings

Shares in Las Vegas Sands Corp. (Ticker: LVS) are up sharply today, gaining as much as 5.7% to touch $80.12 and the highest level since April 4th, mirroring gains in shares of resort casino operator Wynn Resorts Ltd. (Ticker: WYNN). The move in Wynn shares appears, at least in part, to follow a big increase in target price from analysts at CLSA who upped their target on the ‘buy’ rated stock to $350 from $250 a share. CLSA also has a ‘buy’ rating on Las Vegas Sands with a $100 price target according to a note from reporter, Janet Freund, on Bloomberg. Both companies are scheduled to report first-quarter earnings after the closing bell on Thursday.

...

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Sabrient

What the Market Wants: Market Poised to Head Higher: 3 Stocks to Consider

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

Courtesy of David Brown, Sabrient Systems and Gradient Analytics

Yesterday, the market continued its winning ways for the fifth consecutive day.  The S&P 500 closed within 1% of its all-time high, and the DJI was even closer to its all-time high.  Healthcare, Energy and Technology led the sectors while Financials, Telecom, and Utilities finished slightly in the red.  All three sectors in the red are typically flight-to-safety stocks, so despite lower than average volume, the market appears poised to make new highs.

Mid-cap Growth led the style/caps last week, up 2.87%, and Small-cap Growth trailed, up 2.22%. This week will bring well over 100 S&P 500 stocks reporting their March quarter earn...



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OpTrader

Swing trading portfolio - Week of April 21st, 2014

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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Stock World Weekly

Stock World Weekly

Newsletter writers are available to chat with Members regarding topics presented in SWW, comments are found below each post.

Here's this week's Stock World Weekly. Click here and sign in with your PSW user name and password, or sign up for a free trial.

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Digital Currencies

Facebook Takes Life Seriously and Moves To Create Its Own Virtual Currency, Increases UltraCoin Valuation Significantly

Courtesy of ZeroHedge. View original post here.

Submitted by Reggie Middleton.

The Financial Times reports:

[Facebook] The social network is only weeks away from obtaining regulatory approval in Ireland for a service that would allow its users to store money on Facebook and use it to pay and exchange money with others, according to several people involved in the process. 

The authorisation from Ireland’s central bank to become an “e-money” institution would allow ...



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Promotions

See Live Demo Of This Google-Like Trade Algorithm

I just wanted to be sure you saw this.  There’s a ‘live’ training webinar this Thursday, March 27th at Noon or 9:00 pm ET.

If GOOGLE, the NSA, and Steve Jobs all got together in a room with the task of building a tremendously accurate trading algorithm… it wouldn’t just be any ordinary system… it’d be the greatest trading algorithm in the world.

Well, I hate to break it to you though… they never got around to building it, but my friends at Market Tamer did.

Follow this link to register for their training webinar where they’ll demonstrate the tested and proven Algorithm powered by the same technological principles that have made GOOGLE the #1 search engine on the planet!

And get this…had you done nothing b...



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Pharmboy

Here We Go Again - Pharma & Biotechs 2014

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

Ladies and Gentlemen, hobos and tramps,
Cross-eyed mosquitoes, and Bow-legged ants,
I come before you, To stand behind you,
To tell you something, I know nothing about.

And so the circus begins in Union Square, San Francisco for this weeks JP Morgan Healthcare Conference.  Will the momentum from 2013, which carried the S&P Spider Biotech ETF to all time highs, carry on in 2014?  The Biotech ETF beat the S&P by better than 3 points.

As I noted in my previous post, Biotechs Galore - IPOs and More, biotechs were rushing to IPOs so that venture capitalists could unwind their holdings (funds are usually 5-7 years), as well as take advantage of the opportune moment...



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