Posts Tagged ‘memory’

In Pursuit of a Mind Map, Slice by Slice

Mapping the brain at the connectome level seems daunting, but it’s an exciting step in understanding how our brains work. As noted in the article, the connectome is a series of static images, so it would seem that the next stage, perhaps massively more complicated, would be studying the connectome’s action in time. – Ilene

In Pursuit of a Mind Map, Slice by Slice

By ASHLEE VANCENY Times

Excerpts:

Dr. Lichtman and his team of researchers at Harvard have built some unusual contraptions that carve off slivers of mouse brains as part of a quest to understand how the mind works. Their goal is to run slice after minuscule slice under a powerful electron microscope, develop detailed pictures of the brain’s complex wiring and then stitch the images back together. In short, they want to build a full map of the mind.

The field, at a very nascent stage, is called connectomics, and the neuroscientists pursuing it compare their work to early efforts in genetics. What they are doing, these scientists say, is akin to trying to crack the human genome — only this time around, they want to find how memories, personality traits and skills are stored.

[...]

Dr. Lichtman estimates it will be several years before they can contemplate a connectome of a mouse brain, but there are some technological advances on the horizon that could cut that time significantly. Needless to say, a human brain would be far more complex and time-consuming.

“Hopefully, we are returning with a burst of new energy to the question of how the brain is wired up,” said Gary S. Lynch, a well-known brain researcher at the University of California, Irvine. “Lacking a blueprint, we’re never going to get anywhere on the most profound and fun questions that drew everyone to neuroscience in the first place: what is thought, consciousness?”

Full article here: Seeking the Connectome, a Mental Map, Slice by Slice – NYTimes.com.


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How your brain remembers the future

Déjà vu, all over again.

How your brain remembers the future

Image Of Thinking Man's Brain Through Bowler Hat

By NewScientist

IT’S like remembering the future. Our brain generates predictions of likely visual inputs so it can focus on dealing with the unexpected.

Predictable sights trigger less brain activity than unfamiliar stimuli, bolstering the view that the brain is not merely reactive, but generates predictions based on the recent past. "The brain expects to see things and really just wants to confirm it now and again," says Lars Muckli at the University of Glasgow, UK.

[...]

The finding supports the "Bayesian brain" theory, which sees the brain as making predictions about the world which it updates when new information comes in.


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Disorderly genius: How chaos drives the brain

Here’s a fascinating New Scientist article on how your brain works, swinging back and forth between order and chaos, neurons firing away in a blizzard of random activity. – Ilene

Disorderly genius: How chaos drives the brain 

chaotic brain, geniusBy David Robson

HAVE you ever experienced that eerie feeling of a thought popping into your head as if from nowhere, with no clue as to why you had that particular idea at that particular time? You may think that such fleeting thoughts, however random they seem, must be the product of predictable and rational processes. After all, the brain cannot be random, can it? Surely it processes information using ordered, logical operations, like a powerful computer?

Actually, no. In reality, your brain operates on the edge of chaos. Though much of the time it runs in an orderly and stable way, every now and again it suddenly and unpredictably lurches into a blizzard of noise.

Neuroscientists have long suspected as much. Only recently, however, have they come up with proof that brains work this way. Now they are trying to work out why. Some believe that near-chaotic states may be crucial to memory, and could explain why some people are smarter than others.

In technical terms, systems on the edge of chaos are said to be in a state of "self-organised criticality". These systems are right on the boundary between stable, orderly behaviour – such as a swinging pendulum – and the unpredictable world of chaos, as exemplified by turbulence…

 Full article here.

 


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Zero Hedge

Hedge Funds Have Never Been More Concentrated Into The Same Handful Of Stocks

Courtesy of ZeroHedge View original post here.


Sun, 05/24/2020 - 15:25

Six years ago, back in 2013, we presented what we then viewed (and still view) as the best trading strategy of the New Abnormal period, when we said that buying the most shorted names while shorting the names that have the highest hedge fund concentration and institutional ownership is the surest way to generate alpha, to wit:

... in a world in which nothing ...



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Phil's Favorites

A doctor shares 7 steps he'll review to decide when and where it's safe to go out and about

 

A doctor shares 7 steps he'll review to decide when and where it's safe to go out and about

The Inn at Little Washington in Washington, Virginia, shown May 20, 2020, plans to use mannequins in its dining room to enforce social distancing when it reopens at the end of the month. Olivier Douliery/AFP via Getty Images

Courtesy of William Petri, University of Virginia

As we return to some degree of normalcy after weeks of social distancing, we all need a plan. As an immunologist, I’ve given this a lot of ...



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Biotech/COVID-19

A doctor shares 7 steps he'll review to decide when and where it's safe to go out and about

 

A doctor shares 7 steps he'll review to decide when and where it's safe to go out and about

The Inn at Little Washington in Washington, Virginia, shown May 20, 2020, plans to use mannequins in its dining room to enforce social distancing when it reopens at the end of the month. Olivier Douliery/AFP via Getty Images

Courtesy of William Petri, University of Virginia

As we return to some degree of normalcy after weeks of social distancing, we all need a plan. As an immunologist, I’ve given this a lot of ...



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Chart School

Is this your local response to COVID 19

Courtesy of Read the Ticker

This is off topic, but a bit of fun!


This is the standard reaction from the control freaks.








This is the song for post lock down!







What should be made mandatory? Vaccines, hell NO! This should be mandatory: Every one taking their tops off in the sun, they do in Africa!

Guess which family gets more Vitamin D and eats less sugary carbs, TV Show



...



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ValueWalk

Hazelton Capital Partners 1Q20 Commentary: Long Renewable Energy Group

By Jacob Wolinsky. Originally published at ValueWalk.

Hazelton Capital Partners commentary for the first quarter ended April 30, 2020, discussing their current portfolio holdings Renewable Energy Group, Apple and Berkshire Hathaway.

Q1 2020 hedge fund letters, conferences and more

Dear Partner,

Hazelton Capital Partners, LLC (the “Fund”) returned -23.8% from January 1, 2020 through March 31, 2020. By comparison, the S&P 500 returned -19.4% during the same quarter.

Before reviewing the 1st quarter of 2020 and Hazelton Capital Partners’ portfolio, my sincere hope is that everyone, their family, friends, a...



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The Technical Traders

Gold Stocks Are Overbought. You Don't Want Prices to Go Straight Up

Courtesy of Technical Traders

Bill Powers of MiningStockEducation.com talks with a professional trader and market commentator Chris Vermeulen says gold stocks are overbought and need a breather which would be good for the overall upward trend.

Chris shares how he has and is trading the junior gold sector. He called the recent February 24th top in the gold stocks before the March crash. And now he is warning to a top in some gold-stock positions during an expected pullback.

Chris also addresses whether a lot of the gap-up’s in many gold...



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Kimble Charting Solutions

Doc Copper Counter-Trend Rally Could Peak Here, Says Joe Friday

Courtesy of Chris Kimble

Could ole Doc Copper be sending an important message about the overall health of the global economy and the stock market in the next couple of weeks? It appears it could!

This chart looks at Copper futures on a weekly basis over the past 7-years. Doc Copper looks to have double topped in late 2017 and early 2018. After the double top, Copper has continued to create a series of lower highs, which sends a bearish divergence message to stocks.

Numerous highs and lows have taken place along the line (1) over the past 5-years. The rally off the March lows ...



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Digital Currencies

Blockchains can trace foods from farm to plate, but the industry is still behind the curve

 

Blockchains can trace foods from farm to plate, but the industry is still behind the curve

App-etising? LDprod

Courtesy of Michael Rogerson, University of Bath and Glenn Parry, University of Surrey

Food supply chains were vulnerable long before the coronavirus pandemic. Recent scandals have ranged from modern slavery ...



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Members' Corner

Coronavirus, 'Plandemic' and the seven traits of conspiratorial thinking

 

Coronavirus, 'Plandemic' and the seven traits of conspiratorial thinking

No matter the details of the plot, conspiracy theories follow common patterns of thought. Ranta Images/iStock/Getty Images Plus

Courtesy of John Cook, George Mason University; Sander van der Linden, University of Cambridge; Stephan Lewandowsky...



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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! 

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

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Lee's Free Thinking

Why Blaming the Repo Market is Like Blaming the Australian Bush Fires

 

Why Blaming the Repo Market is Like Blaming the Australian Bush Fires

Courtesy of  

The repo market problem isn’t the problem. It’s a sideshow, a diversion, and a joke. It’s a symptom of the problem.

Today, I got a note from Liquidity Trader subscriber David, a professional investor, and it got me to thinking. Here’s what David wrote:

Lee,

The ‘experts’ I hear from keep saying that once 300B more in reserves have ...



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Mapping The Market

How IPOs Are Priced

Via Jean Luc 

Funny but probably true:

...

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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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About Ilene:

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