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…
continue reading


Tags: , , , , , ,




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 


Tags: , , , , , , , ,




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…
continue reading


Tags: , , , , , , , ,




 
 
 

Zero Hedge

Minimum Wage, Maximum Discrimination

Courtesy of ZeroHedge View original post here.

Authored by Caleb Fuller via The Mises Institute,

Since the days of Adam Smith, economists hav...



more from Tyler

Phil's Favorites

Two by Two

 

Two by Two

Courtesy of Scott Galloway, No Mercy/No Malice@profgalloway

“The task is...not so much to see what no one has yet seen; but to think what nobody has yet thought, about that which everybody sees.” 

~ Erwin Schrödinger

Just as life is not about what happens to you, but about how you respond to what happens to you, insight is not a function of data, but of how you perceive the data. Plotting data in different ways is illuminating, even fun, and it can lead one t...



more from Ilene

Mapping The Market

Which Governments Ordered Johnson & Johnson's Vaccine?

 

Which Governments Ordered Johnson & Johnson's Vaccine?

Courtesy of Niall McCarthy, Statista

On Wednesday, U.S. regulators announced that Johnson & Johnson's Covid-19 vaccine being developed by its subsidiary Janssen Pharmaceuticals in Belgium is effective at preventing moderate to severe cases of the disease. The jab has been deemed safe with 66 percent efficacy and the FDA is likely to approve it for use in the U.S. within days.

The Ad26.COV2.S vaccine can be stored for up to three months in a refrigerator and requires a single shot, ...



more from M.T.M.

Biotech/COVID-19

Which Governments Ordered Johnson & Johnson's Vaccine?

 

Which Governments Ordered Johnson & Johnson's Vaccine?

Courtesy of Niall McCarthy, Statista

On Wednesday, U.S. regulators announced that Johnson & Johnson's Covid-19 vaccine being developed by its subsidiary Janssen Pharmaceuticals in Belgium is effective at preventing moderate to severe cases of the disease. The jab has been deemed safe with 66 percent efficacy and the FDA is likely to approve it for use in the U.S. within days.

The Ad26.COV2.S vaccine can be stored for up to three months in a refrigerator and requires a single shot, ...



more from Biotech/COVID-19

Digital Currencies

Crypto - It Is Different This Time

 

Crypto – It Is Different This Time

Courtesy of Howard Lindzon

?I have been astonished as you know by the growth of crypto.

I remember back in 2017 when I noticed that Stocktwits message volume on Bitcoin ($BTC.X) surpassed that of $SPY. I knew Bitcoin was here to stay and Bitcoin went on to $19,000 before heading into its bear market.

Today Bitcoin is near $50,000.

Back in November of 2020, something new started to happen on Stocktwits with respect to crypto.

After the close on Friday until the open of the futures on Sunday, all Stocktwits trending tickers turned crypto. The weekend messages on Stocktwits have increased 400 percent.

That has continued each weekend...



more from Bitcoin

ValueWalk

There's A "Chip" Shortage: And TSM Holds All The Cards

By Mauldin Economics. Originally published at ValueWalk.

“You drove 1,000 miles just for this game?” Christmas 1988 was a stressful time for many American parents. Nintendo’s Super Mario Bros. 2 was the must-have toy that year. But copies of the hit videogame were as scarce as hen’s teeth.

Q4 2020 hedge fund letters, conferences and more

ABC News ran a 20/20 special on the shortage called “Nuts for Nintendo.” They chatted to one dad who drove 1,000 miles from Indiana to NYC in the hopes of grabbing a copy.

“I’ve tried 7 stores a day for 3 weeks and sti...



more from ValueWalk

Politics

What is fascism?

 

What is fascism?

A Donald Trump supporter wears a gas mask and holds a bust of him after he and hundreds of others stormed the Capitol building on Jan. 6, 2021. Roberto Schmidt/AFP via Getty Images

Courtesy of John Broich, Case Western Reserve University

Since before Donald Trump took office, historians have debated whether he is a fascist.

As a teacher of World War II history...



more from Politics

Chart School

The Fastest Money

Courtesy of Read the Ticker

The fast money happens near the end of the long trend.

Securities which attract a popular following by both the public and professionals investors tend to repeat the same sentiment over their bull phase. The chart below is the map of said sentiment.
 


 

Video on the subject.


 

Charts in the video



 



 



Changes in the world is the source of all market moves, to ...



more from Chart School

Kimble Charting Solutions

Is Rising Inflation About To Hit U.S. Economy In Big Way?

Courtesy of Chris Kimble

Inflation seems to be a thing of the past… but current trading in bond and commodity markets tell us that it could become a thing of the future!

Inflation hasn’t been an issue, or even on our radar, since the 1980s. Sure, the 2007 surge in oil prices offered some concern but the financial crisis killed any thoughts of inflation.

So what’s got us concerned about inflation in 2021?

Today we take a look at long-term charts of two potential inflation indicators: Crude Oil ...



more from Kimble C.S.

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...



more from Tech. Traders

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...



more from Lee

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.
...

http://www.insidercow.com/ more from Insider

Promotions

Free, Live Webinar on Stocks, Options and Trading Strategies

TODAY's LIVE webinar on stocks, options and trading strategy is open to all!

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.  

...

more from Promotions





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...

Learn more About Phil >>


As Seen On:




About Ilene:

Ilene is editor and affiliate program coordinator for PSW. Contact Ilene to learn about our affiliate and content sharing programs.