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?

more about " Michael Shermer on Self-Deception", posted with vodpod 


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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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Zero Hedge

Trump's $50 Billion Farm Deal Is Fantasy After Trade War Market Shifts

Courtesy of ZeroHedge View original post here.

Industry insiders have told South China Morning Post (SCMP) that President Trump's alleged $50 billion agriculture deal with China is merely a fantasy, used to stimulate his Farm Belt supporters ahead of an election year, and even used as a communication tool to drive the stock market to new highs. Still, the likelihood of it actually happening is very low.

SCMP notes that China has never confirmed the $50 to ...



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Phil's Favorites

What is an oligarch?

 

What is an oligarch?

Boris Yeltsin shakes hands with Russia’s most powerful businessmen in Moscow. AP Photo

Courtesy of Joel Samuels, University of South Carolina

With the impeachment hearings for President Donald Trump under way, several American diplomats and ...



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The Technical Traders

When Oil Collapses Below $40 What Happens? PART III

Courtesy of Technical Traders

This, the final section of this multi-part research article, will continue our exploration of the consequences that may result from our ADL predictive modeling system’s suggestion that Oil may continue to fall to levels below $40 over the next few months. 

In Part I and ...



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Biotech

Why telling people with diabetes to use Walmart insulin can be dangerous advice

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

 

Why telling people with diabetes to use Walmart insulin can be dangerous advice

A vial of insulin. Prices for the drug, crucial for those with diabetes, have soared in recent years. Oleksandr Nagaiets/Shutterstock.com

Courtesy of Jeffrey Bennett, Vanderbilt University

About 7.4 million people ...



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Insider Scoop

Glass House Group Appoints Graham Farrar As President

Courtesy of Benzinga

Glass House Group, a California-based cannabis and hemp company, earlier this week appointed Graham Farrar as president.

In his new role, Graham will oversee the company’s short and long-term business strategies, budgets and operations, and report up to Glass House Group CEO Kyle Kazan.

A long-time entrepreneur and an original team member of both Sonos (NASDAQ: SONO...



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Chart School

Dow Jones cycle update and are we there yet?

Courtesy of Read the Ticker

Today the Dow and the SP500 are making new all time highs. However all long and strong bull markets end on a new all time high. Today no one knows how many new all time highs are to go, maybe 1 or 100+ more to go, who knows! So are we there yet?

readtheticker.com combine market tools from Richard Wyckoff, Jim Hurst and William Gann to understand and forecast price action. In concept terms (in order), demand and supply, market cycles, and time to price analysis. 

Cycle are excellent to understand the wider picture, after all markets do not move in a straight line and bear markets do follow bull markets. 



CHART 1: The Dow Jones Industrial average with the 900 period cycle.

A) Red Cycle:...

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Digital Currencies

Is Bitcoin a Macro Asset?

 

Is Bitcoin a Macro Asset?

Courtesy of 

As part of Coindesk’s popup podcast series centered around today’s Invest conference, I answered a few questions for Nolan Bauerly about Bitcoin from a wealth management perspective. I decided in December of 2017 that investing directly into crypto currencies was unnecessary and not a good use of a portfolio’s allocation slots. I remain in this posture today but I am openminded about how this may change in the future.

You can listen to this short exchange below:

...



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Kimble Charting Solutions

Silver Testing This Support For The First Time In 8-Years!

Courtesy of Chris Kimble

Its been a good while since Silver bulls could say that it is testing support. Well, this week that can be said! Will this support test hold? Silver Bulls sure hope so!

This chart looks at Silver Futures over the past 10-years. Silver has spent the majority of the past 8-years inside of the pink shaded falling channel, as it has created lower highs and lower lows.

Silver broke above the top of this falling channel around 90-days ago at (1). It quickly rallied over 15%, before creating a large bearish reversal pattern, around 5-weeks after the bre...



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Lee's Free Thinking

Today's Fed POMO TOMO FOMC Alphabet Soup Unspin

Courtesy of Lee Adler

But make no mistake, if the Fed wants money rates to stay down by another quarter, it will need to imagineer even more money.

That’s on top of the $281 billion it has already imagineered into existence since addressing its “one-off” repo market emergency on September 17. This came via  “Temporary” Repo Man Operations money, and $70.6 billion in Permanent Open Market Operations (POMO) money.

By my calculations that averages out to $7.4 billion per business day. That works out to a monthly pace of $155 billion or so.

If they keep this up, it will be more than enough to absorb every penny of new Treasury supply. That supply had caused the system to run out of money in mid September.  This flood of paper had been inundati...



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Mapping The Market

How IPOs Are Priced

Via Jean Luc 

Funny but probably true:

...

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Members' Corner

Despacito - How to Make Money the Old-Fashioned Way - SLOWLY!

Are you ready to retire?  

For most people, the purpose of investing is to build up enough wealth to allow you to retire.  In general, that's usually enough money to reliably generate a year's worth of your average income, each year into your retirement so that that, plus you Social Security, should be enough to pay your bills without having to draw down on your principle.

Unfortunately, as the last decade has shown us, we can't count on bonds to pay us more than 3% and the average return from the stock market over the past 20 years has been erratic - to say the least - with 4 negative years (2000, 2001, 2002 and 2008) and 14 positives, though mostly in the 10% range on the positives.  A string of losses like we had from 2000-02 could easily wipe out a decades worth of gains.

Still, the stock market has been better over the last 10 (7%) an...



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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.

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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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