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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The PhilStockWorld.com Weekly Trading Webinar - 04-24-19

For LIVE access on Wednesday afternoons, join us at Phil's Stock World – click here.

 

Major Topics

00:04:59 - Money Talk Portfolio
00:33:34 - IBM
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01:09:03 - WPM
01:12:53 - UNG | Natural Gas
01:21:17 - CLNY
01:24:18 - Petroleum Status Report
01:28:53 - Manufacturing Jobs | Oils | Iran
01:31:32 - IPO on Beef
01:34:50 - Disney
 

Phil's Weekly Trading Webinars provide a great opportunity to learn what we...



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Zero Hedge

TPG To Strip Manager Embroiled In College Bribery Scandal Of Shares Worth Millions Of Dollars

Courtesy of ZeroHedge. View original post here.

As Lori Loughlin and Mossimo Giannulli plead not guilty in the hopes that their 'we didn't think we were doing anything wrong' defense manages to win over a jury of their not-quite-peers, private equity firm TPG Capital has taken the unprecedented step of stripping a former employee who was embroiled in the scandal of assets worth tens of millions of dollars.

According to Axios, after a brief interna...



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Biotech

No cure for Alzheimer's disease in my lifetime

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

 

No cure for Alzheimer's disease in my lifetime

In most cases, scientists are still unsure of what causes Alzheimer’s disease. FGC / Shutterstock.com

Courtesy of Norman A. Paradis, Dartmouth College

Biogen recently announced that it was abandoning its late stage drug for Alzheimer’s, ...



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Insider Scoop

Earnings Scheduled For April 25, 2019

Courtesy of Benzinga.

Companies Reporting Before The Bell
  • Bristol-Myers Squibb Company (NYSE: BMY) is expected to report quarterly earnings at $1.07 per share on revenue of $5.71 billion.
  • 3M Company (NYSE: MMM) is estimated to report quarterly earnings at $2.49 per share on revenue of $8.04 billion.
  • Comcast Corporation (NASDAQ:...


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Chart School

Trump China trade deal currency component

Courtesy of Read the Ticker.

The coming Trump trade deal could have an interesting component effecting the US dollar.

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Fundamentals are important, and so is market timing, here at readtheticker.com we believe a combination of Gann Angles, ...

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Digital Currencies

5 Cryptocurrency Tax Questions To Ask On April 15th

Courtesy of ZeroHedge. View original post here.

Authored by David Kemmerer via CoinTelegraph.com,

Depending on what country you live in, your cryptocurrency will be subject to different tax rules. The questions below address implications within the United States, but similar issues arise around the world. As always, check with a local tax professional to assess your own particular tax situation.

...



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Kimble Charting Solutions

Silver Bear Market Faces Big Price Support Test!

Courtesy of Chris Kimble.

When silver, gold, and the precious metals industry were red-hot bullish in the 2000’s, investors could do no wrong.

You could buy SILVER at just about any price and it would go higher.

In today’s chart, you can see three large green bullish ascending triangles from the 2000’s that lead to big gains. But that was the bull market before the current bear market.

The tables have turned since the 2011 price top. Silver quickly formed a bearish descending triangle and fell another 50 percent when that broke down. This sent a vicious bear mark...



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ValueWalk

More Examples Of "Typical Tesla "wise-guy scamminess"

By Jacob Wolinsky. Originally published at ValueWalk.

Stanphyl Capital’s letter to investors for the month of March 2019.

rawpixel / Pixabay

Friends and Fellow Investors:

For March 2019 the fund was up approximately 5.5% net of all fees and expenses. By way of comparison, the S&P 500 was up approximately 1.9% while the Russell 2000 was down approximately 2.1%. Year-to-date 2019 the fund is up approximately 12.8% while the S&P 500 is up approximately 13.6% and the ...



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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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Mapping The Market

It's Not Capitalism, it's Crony Capitalism

A good start from :

It's Not Capitalism, it's Crony Capitalism

Excerpt:

The threat to America is this: we have abandoned our core philosophy. Our first principle of this nation as a meritocracy, a free-market economy, where competition drives economic decision-making. In its place, we have allowed a malignancy to fester, a virulent pus-filled bastardized form of economics so corrosive in nature, so dangerously pestilent, that it presents an extinction-level threat to America – both the actual nation and the “idea” of America.

This all-encompassing mutant corruption saps men’s souls, crushes opportunities, and destroys economic mobility. Its a Smash & Grab system of ill-gotten re...



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OpTrader

Swing trading portfolio - week of September 11th, 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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Promotions

Free eBook - "My Top Strategies for 2017"

 

 

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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.

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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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