Posts Tagged ‘Dopamine’

The Link Between Marijuana and Schizophrenia

Two components of marijuana have different effects on symptoms of psychosis. Delta-9 tetrahydocannabinol (THC) causes hallucinations and, in high enough doses, can cause temporary psychotic experiences, even in healthy people. Another chemical, cannabidiol (CBD), has anti-psychotic effects. Scientists hope to replicate the antipsychotic effects of CBD without triggering the risks of THC. – Ilene 

The Link Between Marijuana and Schizophrenia

TIME photos

[click on image for TIME's photo series "The Great American Pot Smoke-Out"]

By Maia Szalavitz, courtesy of TIME 

Since the days of Reefer Madness, scientists have sought to understand the complex connection between marijuana and psychosis. Cannabis can cause short-term psychotic experiences, such as hallucinations and paranoia, even in healthy people, but researchers have also long noted a link between marijuana use and the chronic psychotic disorder, schizophrenia.

Repeatedly, studies have found that people with schizophrenia are about twice as likely to smoke pot as those who are unaffected. Conversely, data suggest that those who smoke cannabis are twice as likely to develop schizophrenia as nonsmokers. One widely publicized 2007 review of the research even concluded that trying marijuana just once was associated with a 40% increase in risk of schizophrenia and other psychotic disorders. 

But here’s the conundrum: while marijuana went from being a secret shared by a small community of hepcats and beatniks in the 1940s and ’50s to a rite of passage for some 70% of youth by the turn of the century, rates of schizophrenia in the U.S. have remained flat, or possibly declined. For as long as it has been tracked, schizophrenia has been found to affect about 1% of the population. 

One explanation may be that the two factors are coincidental, not causal: perhaps people who have a genetic susceptibility to schizophrenia also happen to especially enjoy marijuana. Still, some studies suggest that smoking pot can actually trigger the disease earlier in individuals who are predisposed, and yet researchers still aren’t seeing increases in the overall schizophrenia rate or decreases in the average age of onset. 

In recent months, new research has explored some of these issues. One study led by Dr. Serge Sevy, an associate professor of psychiatry at the Albert Einstein College of Medicine in New York City, looked at 100 patients between the ages of 16 and 40 with schizophrenia, half of whom smoked marijuana. Sevy and colleagues found that among the marijuana users, 75% had…
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Michael Shermer on Self-Deception

Very interesting video. Michael Shermer discusses belief. Belief is the natural state of things, the default option of our minds. Science is not natural, it’s more difficult. It’s uncomfortable to not believe things. We have a "belief engine" in our brains. We find patterns and make connections. Like Pavlov’s dogs and Skinner’s rats.

Michael calls this pattern finding process "patternicity"--our tendency to find meaningful patterns in both meaningful and meaningless noise. L-Dopa (turns into dopamine) causes subjects to see more patterns, dopamine appears to be associated with patternicity. Neuroleptic drugs (dopamine antagonists) reduce psychotic behavior, reducing patternicities--delusions, paranoia, hallucinations--false or psychotic patterns. Watch the whole video… – Ilene 

Michael Shermer on Self-Deception

Courtesy of Miss Trade, Trading for the Masses

Fantastic Speech for Traders to watch especially Technical Traders. See what you want or what is real? What is real?

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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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Phil's Favorites

As schools prepare to reopen during COVID-19, are the kids alright?

 

As schools prepare to reopen during COVID-19, are the kids alright?

A seven-year-old boy waits at the bus stop in Dallas, Ga., for the first day of school on Aug. 3, 2020. Canadian schools are reopening in September, but is anyone really thinking about the well-being of the children? (AP Photo/Brynn Anderson)

Courtesy of Sydney Chapados, Carleton University

As September approaches and schools prepare to reopen, there are concerns for children, including the risk they might spread COVID-19, ...



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Biotech/COVID-19

As schools prepare to reopen during COVID-19, are the kids alright?

 

As schools prepare to reopen during COVID-19, are the kids alright?

A seven-year-old boy waits at the bus stop in Dallas, Ga., for the first day of school on Aug. 3, 2020. Canadian schools are reopening in September, but is anyone really thinking about the well-being of the children? (AP Photo/Brynn Anderson)

Courtesy of Sydney Chapados, Carleton University

As September approaches and schools prepare to reopen, there are concerns for children, including the risk they might spread COVID-19, ...



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ValueWalk

Emerging Market Airports - Broyhill Asset Management

By Jacob Wolinsky. Originally published at ValueWalk.

Broyhill Asset Management investment thesis on Mexico’s airports.

The economic impacts of COVID-19 have been felt far and wide. The pandemic has indiscriminately affected both developing and emerging economies. The virus has shuttered some businesses but has also created some interesting opportunities for the long-term, value-oriented investor.

Emerging market air travel has been hard hit by the global pandemic. But air travel is key to economic development.  Airports are recognized as critical infrastructure, supporting employment and fostering growth in tourism, trade, and business.

Broyhill Asset Management’s investment thesis below, highlights how private airports carry lower risk than airlines, generate highe...



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Kimble Charting Solutions

History Says Gold Correction Could Lead to Big Rally!

Courtesy of Chris Kimble

Over a decade ago, Gold rallied past its 1980 highs and over $1000/oz at (1) on today’s chart.

That rise to new highs was met with a 30 percent correction at (2), followed by a blast off rally to new highs.

Is gold setting up for a repeat of its past?

Gold recently rallied past its 2011 highs and above $2000/oz. Could Gold soon turn lower for a sharp correction before another blast off toward $3000?

If so, Gold bulls should look for a pullback, before blasting higher. Stay tuned!

This article was first written fo...



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Zero Hedge

El Erian: Reading The Dollar Doldrums

Courtesy of ZeroHedge View original post here.

Authored by Mohamed El-Erian via Project Syndicate,

A sharp decline in the relative value of the dollar this year has been met with cheers from those hoping for a short-term boost to the US economy, and with hand-wringing by those worried about the currency's global standing. But while both views reflect underlying truths, neither tells the whole story.

...



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The Technical Traders

Adaptive Fibonacci Price Modeling System Suggests Market Peak May Be Near

Courtesy of Technical Traders

Our Adaptive Fibonacci Price Modeling system is suggesting a moderate price peak may be already setting up in the NASDAQ while the Dow Jones, S&P500, and Transportation Index continue to rally beyond the projected Fibonacci Price Expansion Levels.  This indicates that capital may be shifting away from the already lofty Technology sector and into Basic Materials, Financials, Energy, Consumer Staples, Utilities, as well as other sectors.

This type of a structural market shift indicates a move away from speculation and towards Blue Chip returns. It suggests traders and investors are expecting the US consumer to come back strong (or at least hold up the market at...



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Chart School

Silver Big Channel

Courtesy of Read the Ticker

Big channels are the sand pit of price action. Lets review some big trends of these past months.


GLD
- Moving higher to upper solid red line channel


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XAU
- Ready to pause, or simply explode.



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SILVER
- Ready to pause, or simply explode.


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Digital Currencies

Raoul Pal: "It May Not Be Worth Owning Any Asset Other Than Bitcoin"

Courtesy of ZeroHedge View original post here.

Authored by Turner Wright via CoinTelegraph.com,

Raoul Pal, CEO and founder of Real Vision, says Bitcoin may soon become his only asset for long-term investments.

image courtesy of CoinTelegraph ...



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Lee's Free Thinking

Texas, Florida, Arizona, Georgia - The Branch COVIDIANS Are Still Burning Down the House

 

Texas, Florida, Arizona, Georgia – The Branch COVIDIANS Are Still Burning Down the House

Courtesy of Lee Adler, WallStreetExaminer 

The numbers of new cases in some of the hardest hit COVID19 states have started to plateau, or even decline, over the past few days. A few pundits have noted it and concluded that it was a hopeful sign. 

Is it real or is something else going on? Like a restriction in the numbers of tests, or simply the inability to test enough, or are some people simply giving up on getting tested? Because as we all know from our dear leader, the less testing, the less...



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Members' Corner

Coronavirus, 'Plandemic' and the seven traits of conspiratorial thinking

 

Coronavirus, 'Plandemic' and the seven traits of conspiratorial thinking

No matter the details of the plot, conspiracy theories follow common patterns of thought. Ranta Images/iStock/Getty Images Plus

Courtesy of John Cook, George Mason University; Sander van der Linden, University of Cambridge; Stephan Lewandowsky...



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Insider Scoop

Economic Data Scheduled For Friday

Courtesy of Benzinga

  • Data on nonfarm payrolls and unemployment rate for March will be released at 8:30 a.m. ET.
  • US Services Purchasing Managers' Index for March is scheduled for release at 9:45 a.m. ET.
  • The ISM's non-manufacturing index for March will be released at 10:00 a.m. ET.
  • The Baker Hughes North American rig count report for the latest week is scheduled for release at 1:00 p.m. ET.
...

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Promotions

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Feb. 26, 1pm EST

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Phil will discuss positions, COVID-19, market volatility -- the selloff -- and more! 

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Mike will show off the TradeExchange's new platform which you can try for free.  

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Mapping The Market

How IPOs Are Priced

Via Jean Luc 

Funny but probably true:

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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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