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

Dow Drops Below 30,000, Global Rally Fizzles Ahead Of Data Deluge

Courtesy of ZeroHedge View original post here.

US index futures dropped alongside shares in Europe with Dow Jones futures sliding back under 30,000...

... as a furious three-day rally paused ahead of a slew of pre-holiday economic indicators. Data, from jobless claims to consumer confidence and personal income, are due before markets close and traders head off for Thanksgiving.Ppositive vaccine news and the formal start of President-elect Joe Biden’s transition to power - including the selection of Jan...



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ValueWalk

Which Of Workhorse Or Nikola Stock Would Grow The Most

By Benzinga. Originally published at ValueWalk.

Every week, Benzinga conducts a sentiment survey to find out what traders are most excited about, interested in or thinking about as they manage and build their personal portfolios.

Q3 2020 hedge fund letters, conferences and more

We surveyed a group of over 300 Benzinga investors on whether shares of Workhorse Group Inc (NASDAQ:WKHS) or Nikola Corporation (NASDAQ:NKLA) stock would grow the most by 2025.

Over the next five years, which stock will have the largest percentage ...



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Phil's Favorites

Oxford-AstraZeneca vaccine is cheaper than Pfizer's and Moderna's and doesn't require supercold temperature

 

Oxford-AstraZeneca vaccine is cheaper than Pfizer's and Moderna's and doesn't require supercold temperature

Now there is a third possible vaccine for fighting the COVID-19 pandemic. Jakub Porzycki/NurPhoto via Getty Images

Courtesy of Sanjay Mishra, Vanderbilt University

The biopharmaceutical company AstraZeneca has released data on what is now the third promising vaccine candidate against COVID-19 – and it has several advantages over those of its competitors, ...



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Biotech/COVID-19

Oxford-AstraZeneca vaccine is cheaper than Pfizer's and Moderna's and doesn't require supercold temperature

 

Oxford-AstraZeneca vaccine is cheaper than Pfizer's and Moderna's and doesn't require supercold temperature

Now there is a third possible vaccine for fighting the COVID-19 pandemic. Jakub Porzycki/NurPhoto via Getty Images

Courtesy of Sanjay Mishra, Vanderbilt University

The biopharmaceutical company AstraZeneca has released data on what is now the third promising vaccine candidate against COVID-19 – and it has several advantages over those of its competitors, ...



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Politics

TRUMP CONCEDES (SORT OF)

 

TRUMP CONCEDES (SORT OF)

Courtesy of Teri Kanefield

The Trump Legal team filed more documents today in the appellate court. I tweeted a bit about how silly they were (let me know if you all want me to march through them). Then this happened:

Trump giving the go-ahead for the transition to get underway was (I believe) the closest he will get to conceding the election. Two amusing things happened. First, Trump tweeted this about 10 minutes after Emily Murphy submitted a letter saying she would move forward, and that she has made her decisions solely on her own and not at anyone’s direction. Looks like Trump wanted people to think that she was, in fact, acting at his direction.

The other amusing part was that Tr...



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Chart School

RTT browsing latest..

Courtesy of Read the Ticker

Please review a collection of WWW browsing results. The information here is delayed by a few months, members get the most recent content.



Date Found: Friday, 12 June 2020, 08:06:43 PM

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Comment: Interesting (2)



Date Found: Saturday, 13 June 2020, 12:27:02 AM

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Comment: Recession Forecasts Time Frame



Date Found: Monday, 15 June 2020, 11:07:52 PM

...

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Kimble Charting Solutions

Transports Sending Strong Bullish Message To Other Dow Indices?

Courtesy of Chris Kimble

Are Transportation stocks about to send a quality bullish message to other Dow indices this month? Sure could be!

This 3-pack looks at the Dow Jones Industrials, Transports, and Utilities indices on a monthly basis.

One week from the end of a month, the DJ Transports are attempting an important bullish breakout at (1). Unless a sharp reversal takes place in the next week, Transports could close out the month at new monthly closing highs!

The Dow is attempting to close at all-time highs this month, while the Dow Utilities Index remains a few percent below 2020 highs....



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Digital Currencies

Dalio Admits "I Might Be Missing Something" As Bitcoin Surges Above $18,000

Courtesy of ZeroHedge

Since the US election, Bitcoin prices (in USD) have surged a stunning 40%, also lurching higher after each vaccine headline hit.

Source: Bloomberg

Getting ever closer to its all-time record high...

Source: Bloomberg

As crypto prices soared overnight, Bridgewater Associates founder Ray Dalio stepped back into the fray, saying in a Twitter thread that “I might be missing something about Bitco...



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Mapping The Market

COVID-19 Forces More Than Half of Asset Management Firms to Accelerate Adoption of Digital Marketing Technology

By Jacob Wolinsky. Originally published at ValueWalk.

There is no doubt that the use of technology to support client engagement initiatives brings both opportunities and threats but this has been brought into sharp focus this year with the COVID-19 pandemic.

The crisis has brought to the fore the need for firms to enable flexibility in client engagement – the expectation that providers will communicate to clients on their terms, at their speed and frequency and on their preferred channels, is now a given. This is even more critical when clients are experiencing unparalleled anxiety from both market conditions and their own personal circumstances.

...

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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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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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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

Click HERE to join the PSW weekly webinar at 1 pm EST.

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

This week, we also have a special presentation from Mike Anton of TradeExchange.com. It's a new service that we're excited to be a part of! 

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

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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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