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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Phil's Favorites

After JPMorgan Chase Admits to Its 4th and 5th Felony Charge, Its Board Gives a $50 Million Bonus to Its CEO, Jamie Dimon

Courtesy of Pam Martens

Jamie Dimon Being Sworn In at House Financial Services Committee Hearing, May 27, 2021

The unthinkable is happening with alarming regularity at the Frankenbank JPMorgan Chase. Over the last seven years, with Chairman and CEO Jamie Dimon at the helm, JPMorgan Chase has managed to do what no other federally-insured American bank has managed to do in the history of banking in the United States. The bank has admitted to ...



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Zero Hedge

Scaled-Back Olympics Opening Ceremony Marred By Protests As Sponsors Flee

Courtesy of ZeroHedge View original post here.

The 2020(1) Summer Games officially commenced Friday in Tokyo where a scaled back opening ceremony went off without a hitch: it began with the Japanese flag being carried out by a group of children, before dancers representing traditional carpenters re-enacted the construction of traditional wooden dwellings common in Japan.

A wooden set of Olympic rings featured in the ceremony was reportedly constructed from the wood of trees planted in the summer of 1964, the last time Tokyo hosted the Games. Japan's emperor was on hand to officially open the Games a...



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Digital Currencies

Sam Bankman-Fried, Founder and CEO of FTX, Joins Howard Lindzon to Discuss Futures, the Global Scale of Crypto and More

 

Sam Bankman-Fried, Founder and CEO of FTX, Joins Me on Panic with Friends to Discuss Futures, the Global Scale of Crypto and More (EP.159)

Courtesy of Howard Lindzon

?I am really excited to share this ‘Panic’ podcast with Sam Bankman-Fried, the founder and CEO of the crypto currency exchange FTX.

Listen right now here on Megaphone.

I rec...



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Biotech/COVID-19

US is split between the vaccinated and unvaccinated - and deaths and hospitalizations reflect this divide

 

US is split between the vaccinated and unvaccinated – and deaths and hospitalizations reflect this divide

As coronavirus cases surge, unvaccinated people are accounting for nearly all hospitalizations and deaths. Fat Camera/E+ via Getty Images

Courtesy of Rodney E. Rohde, Texas State University and Ryan McNamara, University of North Carolina at Chapel Hill ...



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Chart School

Investing with Channels - Review

Courtesy of Read the Ticker

The US has a lot of debt, to sell more units of the debt to non US buyers the FED and Treasury must get the unit price of the debt down.

This video assumes a 'risk on' bullish bias into the Nov 2022 US mid terms. The bias assumes a US dollar trending down from it current high price of $93 on the DXY.






Chart 1 - US Dollar Channels


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Chart 2 - Ethereum/USD


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Politics

New York defines illegal firearms use as a 'public nuisance' in bid to pierce gun industry's powerful liability shield

 

New York defines illegal firearms use as a ‘public nuisance’ in bid to pierce gun industry’s powerful liability shield

Illegal gun use is now a public nuisance in New York. AP Photo/Bebeto Matthews

Courtesy of Timothy D. Lytton, Georgia State University

Could calling the illegal use of firearms a “public nuisance” bring an end to the gun industry’s immunity from civil lawsuits? ...



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Kimble Charting Solutions

Crude Oil Cleared For Blast Off On This Dual Breakout?

Courtesy of Chris Kimble

Is Crude Oil about to blast off and hit much higher prices? It might be worth being aware of what could be taking place this month in this important commodity!

Crude Oil has created lower highs over the past 13-years, since peaking back in 2008, along line (1).

It created a “Double Top at (2), then it proceeded to decline more than 60% in four months.

The countertrend rally in Crude Oil has it attempting to break above its 13-year falling resistance as well as its double top at (3).

A successful breakout at (3) would suggest Crude Oil is about to mo...



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ValueWalk

Managing Investments As A Charity Or Nonprofit

By Anna Peel. Originally published at ValueWalk.

Maintaining financial viability is a constant challenge for charities and nonprofit organizations.

Q4 2020 hedge fund letters, conferences and more

The past year has underscored that challenge. The pandemic has not just affected investment returns – it’s also had serious implications for charitable activities and the ability to fundraise. For some organizations, it’s even raised doubts about whether they can continue to operate.

Finding ways to generate long-term, sustainable returns for ...



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Mapping The Market

Suez Canal: Critical Waterway Comes to a Halt

 

Suez Canal: Critical Waterway Comes to a Halt

Courtesy of Marcus Lu, Visual Capitalist

The Suez Canal: A Critical Waterway Comes to a Halt

On March 23, 2021, a massive ship named Ever Given became lodged in the Suez Canal, completely blocking traffic in both directions. According to the Suez Canal Authority, the 1,312 foot long (400 m) container ship ran aground during a sandstorm that caused low visibility, impacting the ship’s navigation. The vessel is owned by Taiwanese shipping firm, Evergreen Marine.

With over 2...



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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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