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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ValueWalk

Alex Jones, on trial, blames George Soros for causing marijuana-induced brain damage

By washington times. Originally published at ValueWalk.

4657743 / PixabayAlex Jones, on trial, blames George Soros for causing marijuana-induced brain damage

Media personality and controversial conspiracy theorist Alex Jones, while testifying in court, insisted that billionaire political donor George Soros has “brain damaged a lot of people” with marijuana. As national media monitor the ongoing custody case currently unfolding in Texas between Mr. Jones and his former wife, Thursday’s accusation reverberated well beyond the Austin courthouse where…

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The post Alex Jones, on trial, blames ...



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Zero Hedge

North Korea Arrests US Citizen, Threatens To Sink US Aircraft Carrier As Japan Deploys Warships

Courtesy of ZeroHedge. View original post here.

A third US citizen has been arrested and remains in custody in North Korea, according to South Korean news agency Yonhap. A man, a Korean-American professor in his 50s, identified by the surname Kim, had been in North Korea for a month to discuss relief activities and was detained at Pyongyang International Airport just as he was leaving North Korea, the agency reported.

The man was a former professor at Yanbian University of Scie...



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Phil's Favorites

Neil deGrasse Tyson on the Threat of Science Denial

 

Neil deGrasse Tyson on the Threat of Science Denial

Courtesy of 

This post first appeared on BillMoyers.com.

Just in time for Earth Day, astrophysicist Neil deGrasse Tyson releases a short film on Facebook that he says "may be the most important words I have ever spoken." It's already been viewed nearly 20 million times.

DeGrasse Tyson highlights some of the points he made in his three-part series of conversations with Bill Moyers in 2014, which explored a variety of topics, including the beauty of the scientific method in the search for truth, the value of innovations in science and technology in the ascendency of America, and how political debates ...



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Market News

News You Can Use From Phil's Stock World

 

Financial Markets and Economy

Wall Street gears up for busiest earnings week in years (Reuters)

Corporate America is set to unleash its biggest profit-reporting fest in at least a decade next week, with more than 190 members of the S&P 500 index .SPX delivering quarterly scorecards, according to S&P Dow Jones Indices data.

Draghi Says ECB Hasn’t Seen Evidence of Durable Eurozone Infl...



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Members' Corner

Should I buy that stock?

Courtesy of Phil Stasukaitis (pstas)

I was asked by my local investment club to do a presentation on "how to buy a stock?" As I pondered the question, I began by noting all the elements that I monitor regularly and which come in to play as part of my decision process. As the group is comprised novices to experts, I tried to gear my discussion to cover both basics and more advanced concepts.

Four Part Discussion

  1. Macro Economic Indicators
  2. Market Indexes
  3. Fundamental Analysis
  4. Technical Analysis

1. Macro Economic Indicators

We'll start with reviewing some basic concepts and measurements that have direct effects on the stock market. 

A. Gross Domestic Product (GDP)

...

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Kimble Charting Solutions

Banks at risk if this support gives ways, says Joe Friday

Courtesy of Chris Kimble.

Regional and Large banks have done well since the election. Of late they have lagged the broad market and find themselves testing what could be very important support levels. Below looks at regional bank ETF (KRE).

CLICK ON CHART TO ENLARGE

KRE has experienced a rally that started in February of 2016. This rally picked up speed following the election last November, as KRE almost went verti...



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Insider Scoop

15 Biggest Mid-Day Gainers For Friday

Courtesy of Benzinga.

  • China Digital TV Holding Co., Ltd.(ADR) (NYSE: STV) shares jumped 33.9 percent to $1.70. China Digital TV declared a special cash dividend of US$1.50 per ordinary share.
  • Carver Bancorp Inc (NASDAQ: CARV) shares surged 31 percent to $5.23.
  • CAI International Inc (NYSE: CAI) rose 21.3 percent to $18.75 after the company reported upbeat quarterly profit.
  • Pernix Therapeutics Holdings Inc (NASDAQ: PTX) shares...


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Chart School

Markets Rally, But Still Work To Do.

Courtesy of Declan

A positive response to Friday's selling helped erase those losses, but for many indices it wasn't enough to recover support or reverse technical 'sell' triggers.

The S&P is on the verge of a 'death cross' between 20-day and 50-day MAs as the rally finished just below the 50-day MA. The consolidation channel remains in play and this should see higher prices in the latter part of the year, but for now, it's drifting down in a relatively controlled manner.
 

A second 'bear trap' could be ...



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OpTrader

Swing trading portfolio - week of April 17th, 2017

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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Mapping The Market

Bombing - Right or Wrong?

Courtesy of Jean-Luc

I am telling you Angel – makes no sense… BTW:

Republicans Love Bombing, But Only When a Republican Does It

By Kevin Drum, Mother Jones

A few days ago I noted that Republican views of the economy changed dramatically when Donald Trump was elected, but Democratic views stayed pretty stable. Apparently Republicans view the economy through a partisan lens but Democrats don't.

Are there other examples of this? Yes indeed. Jeff Stein points to polling data about air strikes against Syria:

Democr...



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Biotech

CAR-T & CRISPR - the Future is Now

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

PSW Members....it has been a while since my last post, but since many have all been on the board following the chat, it is time for a scientific lesson in a few of the companies we are long.  In addition, another revolution is coming in the medical field, and it will be touched upon as well.

CAR-T - stands for Chimeric antigen receptors (CARs) and the T is for T-cell.  

From the picture above, T-cells are one cell type of our immune system that fight off infection as well as they are one player at keeping rogue cells from becoming cancerous. Unfortunately, cancer somehow evades the immune system and so it begins.

CAR-T came along in the late1980s via a brilliant scientist, Zelig Eshhar...



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Digital Currencies

Blockchain And Us - The Documentary

Courtesy of Zero Hedge

In 2008, Satoshi Nakamoto invented bitcoin and the blockchain. For the first time in history, his invention made it possible to send money around the globe without banks, governments or any other intermediaries. The concept of the blockchain isn’t very intuitive. But still, many people believe it is a game changer.

The first 40 years of the Internet brought e-mail, social media, mobile applications, online shopping, Big Data, Open Data, cloud computing, and the Internet of Things.

Information technology is at the heart of everything today - good and bad.  

Despite advances in privacy, security, and inclusion, one thing is still missing from the Internet: Trust.

...



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Promotions

Free eBook - "My Top Strategies for 2017"

 

 

Here's a free ebook for you to check out! 

Phil has a chapter in a newly-released eBook that we think you’ll enjoy.

In My Top Strategies for 2017, Phil's chapter is Secret Santa’s Inflation Hedges for 2017.

This chapter isn’t about risk or leverage. Phil present a few smart, practical ideas you can use as a hedge against inflation as well as hedging strategies designed to assist you in staying ahead of the markets.

Some other great content in this free eBook includes:

 

·       How 2017 Will Affect Oil, the US Dollar and the European Union

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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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FeedTheBull - Top Stock market and Finance Sites



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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Ilene is editor and affiliate program coordinator for PSW. She manages the site market shadows, archives, more. Contact Ilene to learn about our affiliate and content sharing programs.

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