Round-up of recent arti­cles on neu­ro­science, brain devel­op­ment and cog­ni­tive health:

Encephalon 68: A car­ni­val of neu­ro­science:

Chris hosts a great col­lec­tion of neu­ro­science and psy­chol­ogy posts in his sig­na­ture Q&A style.

Bilin­gual Babies Get Head Start — Before They Can Talk:

- Unlike the mono­lin­gual group, the bilin­gual group was able to suc­cess­fully learn a new sound type and use it to pre­dict where each char­ac­ter would pop up.

- The bilin­gual babies’ skill applies to more than just switch­ing between lan­guages. Mehler likened this appar­ently enhanced cog­ni­tive abil­ity to a brain select­ing “the right tool for the right oper­a­tion” also called exec­u­tive function.

- In this basic process, the brain, ever flex­i­ble, nim­bly switches from one learned response to another as sit­u­a­tions change.

- Mono­lin­gual babies hone this abil­ity later in their young lives, Mehler suggests.”

Study shows how kids’ stress hurts mem­ory:

“Now, research is pro­vid­ing what could be cru­cial clues to explain how child­hood poverty trans­lates into dim­mer chances of suc­cess: Chronic stress from grow­ing up poor appears to have a direct impact on the brain, leav­ing chil­dren with impair­ment in at least one key area — work­ing memory.”

Return­ing troops get­ting tested for brain injuries:

- “More than 150,000 ser­vice mem­bers from the Marines, Air Force, Army and Navy have under­gone the test­ing that became manda­tory last year. Those who suf­fer a con­cus­sion or sim­i­lar head injury will get a follow-up test.”

Dia­betes ‘impact on brain power’:

- “Fail­ure to con­trol type 2 dia­betes may have a long-term impact on the brain, research has suggested.

- Lead researcher Dr Jackie Price said: “Either hypos lead to cog­ni­tive decline, or cog­ni­tive decline makes it more dif­fi­cult for peo­ple to man­age their dia­betes, which in turn causes more hypos.

- “A third expla­na­tion could be that a third uniden­ti­fied fac­tor is caus­ing both the hypos and the cog­ni­tive decline.”

Learn­ing can be inci­den­tal. We all mem­o­rize facts with­out pay­ing much atten­tion to these facts or with­out will­ing to mem­o­rize them. How­ever, when one really wants to mem­o­rize a fact, it is cru­cial to pay atten­tion. Many stud­ies have shown that com­pared to full atten­tion con­di­tions, divid­ing atten­tion dur­ing study time leads to poor mem­ory performance.

This exer­cise will help you prac­tice focus­ing your attention.

It may seem easy but make sure you count twice!

Count the num­ber of “Y” in this text:

Yes­ter­day, Lucy went all the way to Boston. She wanted to buy new shoes. She had to go in many shops before she found the shoes she wanted. She was happy to stop at a restau­rant to have some tea and cook­ies before she took the train back home.

Count the num­ber of “F” in this text:

Fin­ished files are the result of years of sci­en­tific study com­bined with the expe­ri­ence of years.

Count the num­ber of “E” in this text:

Last sum­mer, Jean and Har­riet spent their vaca­tion in Michi­gan. They rented a cabin on the lake. The cabin had two bed­rooms and a nice deck. They used to spend a lot of time on the deck, just look­ing at how the light would change on the water. Sev­eral times, they bor­rowed bikes from their neigh­bors and spent a few hours explor­ing the vil­lages not far from their cabin.

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Solu­tions

There are 7 “Y” in the first text.

There are 6 “F” in the sec­ond text (got them?)

There are 38 “E” in the third text.

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For many other Brain Teasers, click Here.
For many other teasers and arti­cles by Dr. Mich­e­lon, click Here.

– Pas­cale Mich­e­lon, Ph. D., is Sharp­Brains’ Research Man­ager for Edu­ca­tional Projects. Dr. Mich­e­lon has a Ph.D. in Cog­ni­tive Psy­chol­ogy and has worked as a Research Sci­en­tist at Wash­ing­ton Uni­ver­sity in Saint Louis, in the Psy­chol­ogy Depart­ment. She con­ducted sev­eral research projects to under­stand how the brain makes use of visual infor­ma­tion and mem­o­rizes facts. She is now an Adjunct Fac­ulty at Wash­ing­ton University.

Neu­ro­feed­back — also known as EEG Biofeed­back — is an approach for treat­ing ADHD in which indi­vid­u­als are pro­vided real-time feed­back on their brain­wave pat­terns and taught to alter their typ­i­cal EEG pat­tern to one that is con­sis­tent with a focused, atten­tive state. This is typ­i­cally done by col­lect­ing EEG data from indi­vid­u­als as they focus on stim­uli pre­sented on a com­puter screen. Their abil­ity to con­trol the stim­uli, for exam­ple, keep­ing the smile on a smi­ley face, is con­tin­gent on main­tain­ing the par­tic­u­lar EEG state being trained. Accord­ing to neu­ro­feed­back pro­po­nents, learn­ing how to do this dur­ing train­ing gen­er­al­izes to real world sit­u­a­tions and this results in improved atten­tion and reduced hyperactive/impulsive behavior.

Neu­ro­feed­back treat­ment for ADHD has been con­tro­ver­sial in the field for many years and remains so today. Although a num­ber of pub­lished stud­ies have reported pos­i­tive results many promi­nent ADHD researchers believe that prob­lems with the design of these stud­ies pre­clude con­clud­ing that neu­ro­feed­back is an effec­tive treat­ment. These lim­i­ta­tions have included the absence of ran­dom assign­ment, the lack of appro­pri­ate con­trol groups, raters who are not ‘blind’ to children’s treat­ment sta­tus, and small sam­ples. For addi­tional back­ground, you can find a recent review I wrote on exist­ing research sup­port for neu­ro­feed­back treat­ment of ADHD — along with links to exten­sive reviews of sev­eral recently pub­lished stud­ies -: How Strong is the Research Sup­port for Neu­ro­feed­back in Atten­tion Deficits?

- Results from a New Study of Neurofeedback -

Recently, a study of neu­ro­feed­back treat­ment for ADHD was pub­lished that addresses sev­eral lim­i­ta­tions that have under­mined prior research [Gevensleben, et al., (2009). Is neu­ro­feed­back an effi­ca­cious treat­ment for ADHD? A ran­dom­ized con­trolled clin­i­cal trial. Jour­nal of Child Psy­chol­ogy and Psychiatry.]

The study was con­ducted in Ger­many and began with 102 chil­dren aged 8 to 12. All had been care­fully diag­nosed with ADHD and approx­i­mately over 90% had never received med­ica­tion treat­ment. About 80% were boys. Chil­dren were ran­domly assigned to Read the rest of this entry »

A cou­ple of very well curated col­lec­tions of recent blog posts:

Encephalon #64: hosted by Neu­r­o­critic, cov­er­ing neu­ro­science and psy­chol­ogy. Please make sure to visit when you have some time to spare…because you will quickly become addicted to the qual­ity con­tent and superb presentation.

It’s Grand Rounds, What Do You Think? GOSH!: hosted by Kim at Emergi­Blog, with an inter­dis­ci­pli­nary, “Napoleon Dyna­mite”, frame. Doesn’t seem to make sense? well, pay a visit.

In 1993, Para­mount Pic­tures released Search­ing for Bobby Fis­cher, which depicts Joshua Waitzkin’s early chess suc­cess as he embarks on a jour­ney to win his first National chess cham­pi­onship. This movie had the effect of weak­en­ing his love for the game as well as the learn­ing process. His pas­sion for learn­ing was reju­ve­nated, how­ever, after years of med­i­ta­tion, and read­ing phi­los­o­phy and psy­chol­ogy. With this rekin­dling of the learn­ing process, Wait­zkin took up the mar­tial art Tai Chi Chuan at the age of 21 and made rapid progress, win­ning the 2004 push hands world cham­pi­onship at the age of 27.

After read­ing Joshua’s most recent book The Art of Learn­ing, I thought of a mil­lion top­ics I wanted to dis­cuss with him–topics such as being labelled a “child prodigy”, bloom­ing, cre­ativ­ity, and the learn­ing process. Thank­fully, since I was pro­fil­ing Wait­zkin for an arti­cle I was for­tu­nate enough to get a chance to have such a con­ver­sa­tion with him. I hope you find this dis­cus­sion just as provoca­tive and illu­mi­nat­ing as I did.

The Child Prodigy

S. Why did you leave chess at the top of your game?

J. This is a com­pli­cated ques­tion that I wrote about very openly in my book. In short, I had lost the love. My rela­tion­ship to the game had become externalized-by pres­sures from the film about my life, by los­ing touch with my nat­ural voice as an artist, by mis­takes I made in the growth process. At the very core of my rela­tion­ship to learn­ing is the idea that we should be as organic as pos­si­ble. We need to cul­ti­vate a deeply refined intro­spec­tive sense, and build our rela­tion­ship to learn­ing around our nuance of char­ac­ter. I stopped doing this and fell into cri­sis from a sense of alien­ation from an art I had loved so deeply. This is when I left chess behind, started med­i­tat­ing, study­ing phi­los­o­phy and psy­chol­ogy, and ulti­mately moved towards Tai Chi Chuan.

S. Do you think being a child prodigy hurt your chess career in any way?

J. I have never con­sid­ered myself a prodigy. Oth­ers have used that term, but I never bought in to it. From a young age it was always about embrac­ing the bat­tle, lov­ing the game, and over­com­ing adver­sity. Grow­ing up as Read the rest of this entry »

Wel­come to the 61st edi­tion of Encephalon, the blog car­ni­val that offers some of the best neu­ro­science and psy­chol­ogy blog posts every other week.

We do have an excel­lent set of arti­cles today. cov­er­ing much ground. Enjoy the reading:

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Neu­ro­science and Society

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Alzheimer’s Dis­ease and Neu­rocog­ni­tive Health Read the rest of this entry »

Mike hosts a great new edi­tion of Encephalon neu­ro­science & psy­chol­ogy blog car­ni­val, avail­able here: #59 edi­tion.

Fyi, Kim at Change of Shift will pub­lish the next edi­tion of MetaCar­ni­val next Mon­day, Decem­ber 1st.