(Editor’s Note: inter­view­ing Richard Nis­bett, author of the excel­lent recent book Intel­li­gence and How to Get It: Why Schools and Cul­tures Count, was in my To Do list. I then found that fel­low blog­ger David DiS­alvo was faster than I was and did a great job, so here we bring you David’s inter­view and take).

While the debate over intel­li­gence rages on many fronts, the bat­tle over the impor­tance of hered­ity rages loud­est. It’s easy to see why. If the camp that argues intel­li­gence is 75 to 85 per­cent genet­i­cally deter­mined is cor­rect, then we’re faced with some tough ques­tions about the role of edu­ca­tion. If intel­li­gence is improved very lit­tle by schools, and if the IQ of the major­ity of the pop­u­la­tion will remain rel­a­tively unchanged no mat­ter how well schools per­form, then should school reform really be a priority?

More to the point, if our genes largely deter­mine our IQ, which in turn under­lies our per­for­mance through­out our lives, then what is the role of school? For some in this debate the answer to that ques­tion is sim­ply, “to be the best you can be.” But that seems lit­tle com­fort for those who aspire to “be” more than what their IQ cat­e­gory pre­dicts they will.

Those on the other side of this debate ques­tion whether hered­ity plays as big a role as the strong hered­i­tar­i­ans claim. And for the role it does play, they ques­tion whether hered­itabil­ity implies immutabil­ity. Hered­ity of height, for exam­ple, is about 90 per­cent, and yet aver­age height in sev­eral pop­u­la­tions around the world has been steadily increas­ing due to non-genetic influ­ences, like nutri­tion. If such a strong hered­i­tary trait can be rad­i­cally altered by envi­ron­men­tal factors–and height is but one exam­ple of this–then why is intel­li­gence different?

It is not, argues the camp that might best be described as intel­li­gence opti­mists. For them, the pes­simism that col­ors the strong hered­i­tar­ian posi­tion isn’t only dis­cour­ag­ing, it’s dan­ger­ous. Too much is hang­ing in the bal­ance for pes­simism about the poten­tial of our chil­dren to prevail.

Richard Nis­bett is a cham­pion of the intel­li­gence opti­mist camp, and with his lat­est book, Intel­li­gence and How to Get It: Why Schools and Cul­tures Count , he has emerged as the most per­sua­sive voice mar­shalling evi­dence to dis­prove the heredity-is-destiny argu­ment. Intel­lec­tual advance­ment, Nis­bett argues, is not the result of hard­wired genetic codes, but the province of con­trol­lable fac­tors like schools and social environments–and as such, improv­ing these fac­tors is cru­cially impor­tant. Read the rest of this entry »

Arts edu­ca­tion influ­ences learn­ing and other areas of cog­ni­tion and may deserve a more promi­nent place in schools, accord­ing to a wave of recent neu­ro­science research.One recent study found that chil­dren who receive music instruc­tion for just 15 months show strength­ened con­nec­tions in musi­cally rel­e­vant brain areas and per­form bet­ter on asso­ci­ated tasks, com­pared with stu­dents who do not learn an instrument.

A sep­a­rate study found that chil­dren who receive train­ing to improve their focus and atten­tion per­form bet­ter not only on atten­tion tasks but also on intel­li­gence tests. Some researchers sug­gest that arts train­ing might sim­i­larly affect a wide range of cog­ni­tive domains. Edu­ca­tors and neu­ro­sci­en­tists gath­ered recently in Bal­ti­more and Wash­ing­ton, D.C., to dis­cuss the increas­ingly detailed pic­ture of how arts edu­ca­tion changes the brain, and how to trans­late that research to edu­ca­tion pol­icy and the class­room. Many par­tic­i­pants referred to the results of Dana Foundation-funded research by cog­ni­tive neu­ro­sci­en­tists from seven lead­ing uni­ver­si­ties over three years, released in 2008.

“Art must do some­thing to the mind and brain. What is that? How would we be able to detect that? asked Barry Gor­don, a behav­ioral neu­rol­o­gist and cog­ni­tive neu­ro­sci­en­tist at Johns Hop­kins Uni­ver­sity, who spoke May 8 dur­ing the “Learn­ing and the Brain” con­fer­ence in Wash­ing­ton, D.C. “Art, I sub­mit to you with­out absolute proof, can improve the power of our minds. How­ever, this improve­ment is hard to detect.”

Study links music, brain changes

Among the sci­en­tists try­ing to detect such improve­ment, Ellen Win­ner, a pro­fes­sor of psy­chol­ogy at Boston Col­lege, and Got­tfried Schlaug, a pro­fes­sor of neu­rol­ogy at Beth Israel Dea­coness Med­ical Cen­ter and Har­vard Med­ical School, pre­sented research at the “Learn­ing, Arts, and the Brain sum­mit May 6 in Bal­ti­more. Their work mea­sured, for the first time, changes to the brain as a result of music training.

For four years, Win­ner and Schlaug fol­lowed chil­dren ages 9 to 11, some of whom Read the rest of this entry »

Wel­come to the 70th edi­tion of Encephalon, the blog car­ni­val that offers some of the best neu­ro­science and psy­chol­ogy blog posts every other week.

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Mys­ter­ies of Brain and Mind

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On Neu­rons, Jour­neys, and Chem­i­cal Friends

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On Brain Functions

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Fron­tiers in Perception

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Next edi­tion will be hosted by Neu­roan­thro­pol­ogy on Mon­day, May 25th. If you can’t wait until to read more, you may be inter­ested in the new in-depth fea­ture, Cog­ni­tive Monthly, offered by Cog­ni­tive Daily blog for $2/ month. This month’s issue, “The Illu­sion of The­ater,” dis­cusses the “remark­able sci­ence behind what the­atri­cal pro­fes­sion­als seem, to laypeo­ple, to do intu­itively: cre­ate an envi­ron­ment that encour­ages us to believe that what we see on stage is a true rep­re­sen­ta­tion of reality.”

Work­ing mem­ory is our abil­ity to store and manip­u­late infor­ma­tion for a brief time. It is typ­i­cally mea­sured by dual-tasks, where the indi­vid­ual has to remem­ber an item while simul­ta­ne­ously pro­cess­ing a some­times unre­lated piece of infor­ma­tion. A widely used work­ing mem­ory task is the read­ing span task where the indi­vid­ual reads a sen­tence, ver­i­fies it, and then recalls the final word. Indi­vid­ual dif­fer­ences in work­ing mem­ory per­for­mance are closely related to a range of aca­d­e­mic skills such as read­ing, spelling, com­pre­hen­sion, and math­e­mat­ics. Cru­cially, there is emerg­ing research that work­ing mem­ory pre­dicts learn­ing out­comes inde­pen­dently of IQ. One expla­na­tion for the impor­tance of work­ing mem­ory in aca­d­e­mic attain­ment is that because it appears to be rel­a­tively unaf­fected by envi­ron­men­tal influ­ences, such as parental edu­ca­tional level and finan­cial back­ground, it mea­sures a student’s capac­ity to acquire knowl­edge rather than what they have already learned.

How­ever lit­tle is known about the con­se­quences of low work­ing mem­ory capac­ity per se, inde­pen­dent of other asso­ci­ated learn­ing dif­fi­cul­ties. In par­tic­u­lar, it is not known either what pro­por­tion of stu­dents with low work­ing mem­ory capac­i­ties has sig­nif­i­cant learn­ing dif­fi­cul­ties or what their behav­ioral char­ac­ter­is­tics are. The aim of a recent study pub­lished in Child Devel­op­ment (ref­er­ence below) was to pro­vide the first sys­tem­atic large-scale exam­i­na­tion of the cog­ni­tive and behav­ioral char­ac­ter­is­tics of school-aged stu­dents who have been iden­ti­fied solely on the basis of very low work­ing mem­ory scores.

In screen­ing of over 3000 school-aged stu­dents in main­stream schools, 1 in 10 was iden­ti­fied as hav­ing work­ing mem­ory dif­fi­cul­ties. There were sev­eral key find­ings regard­ing their cog­ni­tive skills. The first is that the major­ity of them per­formed below age-expected lev­els in read­ing and math­e­mat­ics. This sug­gests that Read the rest of this entry »

You may be read­ing all about brain fit­ness and brain train­ing. It seems every week brings a new bar­rage of arti­cles and stud­ies which often con­tra­dict what you read the month before: Does Gingko Biloba help delay Alzheimer’s Dis­ease? Can phys­i­cal exer­cise help you stay sharp as you age? Which computer-based “brain fit­ness pro­grams”, if any, are worth your money?

All this cov­er­age reflects very excit­ing sci­en­tific find­ings but also poses a key dilemma: How to become an informed life­long learner and con­sumer when there are few and con­tra­dic­tory author­i­ta­tive guidelines?

The Sharp­Brains Guide to Brain Fit­ness (to be pub­lished in May 2009; $24.95) aims to fill that void. This guide is the result of over a year of exten­sive research includ­ing more than a hun­dred inter­views with sci­en­tists, pro­fes­sion­als and con­sumers, and a deep lit­er­a­ture review. Below you have some of the main find­ings from our effort. The guide not only cov­ers these aspects in more depth and offers prac­ti­cal guid­ance, but also includes 18 inter­views with promi­nent sci­en­tists to help you under­stand the research better.

Can we intro­duce you to your Brain?

The Guide will start at the obvi­ous start­ing point: The Human Brain. In order to make informed deci­sions about brain health, one needs to first under­stand the basic orga­ni­za­tion of the human brain and how it tends to change as we get older.

* The brain is com­posed of a num­ber of regions serv­ing dis­tinct func­tions. For­get IQ: our life and pro­duc­tiv­ity depend on a vari­ety of brain func­tions, not just one.

* There is noth­ing inher­ently fixed in the tra­jec­tory of how brain func­tions evolve as we age. Your lifestyle, actions, and even thoughts, do matter.

The 4 Pil­lars of Brain Maintenance

Neu­ro­plas­tic­ity is the life­long capac­ity of the brain to change and rewire itself in response to the stim­u­la­tion of learn­ing and expe­ri­ence. The lat­est sci­en­tific research shows that spe­cific lifestyles and actions can, no mat­ter our age, improve the health and level of func­tion­ing of our brains.

What fac­tors seem to have the most influ­ence? Read the rest of this entry »

There’s such a flood of very sig­nif­i­cant research stud­ies, edu­ca­tional resources and arti­cles related to brain health, it’s hard to keep track — even for us!

Let me intro­duce and quote some of the top Brain Health Stud­ies, Arti­cles and Resources pub­lished in March:

1) Cog­ni­tive Decline Begins In Late 20s, Study Sug­gests (Sci­ence Daily)

- “These pat­terns sug­gest that some types of men­tal flex­i­bil­ity decrease rel­a­tively early in adult­hood, but that how much knowl­edge one has, and the effec­tive­ness of inte­grat­ing it with one’s abil­i­ties, may increase through­out all of adult­hood if there are no patho­log­i­cal dis­eases,” Salt­house said.

- How­ever, Salt­house points out that there is a great deal of vari­ance from per­son to person

2) Cere­brum 2009: Emerg­ing Ideas in Brain Sci­ence — new book by the Dana Foun­da­tion that “explores the cut­ting edge of brain research and its impli­ca­tions in our every­day lives, in lan­guage under­stand­able to the gen­eral reader.”

A cou­ple of excel­lent chap­ters of direct rel­e­vance to everyone’s brain health are:
– Chap­ter 4: A Road Paved by Rea­son, by Eliz­a­beth Nor­ton Lasley

- Chap­ter 10: Neural Health: Is It Facil­i­tated by Work Force Par­tic­i­pa­tion?, by Denise Park, Ph.D

3) Stay­ing Sharp DVD Pro­gram: “Dr. Jor­dan Graf­man, chief of the Cog­ni­tive Neu­ro­science Sec­tion at the National Insti­tute of Neu­ro­log­i­cal Dis­or­ders and Stroke out­side of Wash­ing­ton, DC, and a mem­ber of the Dana Alliance for Brain Ini­tia­tives, is your guide as we cover what to expect from the aging brain and what we can do to ‘stay sharp.’

For a free DVD of this pro­gram you can con­tact stayingsharp@dana.org. (they say free in their web­site, I don’t know if that includes ship­ping & handling)

4) Dri­vers to be tested on cog­ni­tive abil­ity start­ing at age 75 (Japan Times)

The out­line of a cog­ni­tive test that dri­vers aged 75 or over will be required to take from June when renew­ing their licenses was released Thursday…The test is intended to reduce the num­ber of traf­fic acci­dents involv­ing elderly dri­vers by mea­sur­ing their cog­ni­tive level.

5) Phys­i­cal Fit­ness Improves Spa­tial Mem­ory, Increases Size Of Brain Struc­ture (Sci­ence Daily)

- “Now researchers have found that elderly adults who are more phys­i­cally fit tend to have big­ger hip­pocampi and bet­ter spa­tial mem­ory than those who are less fit.”

6) Brain Train­ers: A Work­out for the Mind (Sci­en­tific Amer­i­can Mind)

“I recently tried out eight of the lat­est brain fit­ness pro­grams, train­ing with each for a week. The pro­grams ranged widely in focus, qual­ity and how fun they were to use. “Like phys­i­cal exer­cise equip­ment, a brain exer­cise pro­gram doesn’t do you any good if you don’t use it, says Andrew J. Carle, direc­tor of the Pro­gram in Assisted Living/Senior Hous­ing Admin­is­tra­tion at George Mason Uni­ver­sity. And peo­ple tend not to use bor­ing equip­ment. “I remem­ber when Nor­dic­Track was the biggest thing out there. Every­one ran out and bought one, and 90 per­cent of them ended up as a clothes rack in the back of your bedroom.

The reporter used: Posit Science’s Brain Fit­ness Pro­gram Clas­sic, Hap­pyNeu­ron, Nin­tendo BrainAge, CogniFit’s MindFit/ Cog­niFit Per­sonal Coach, Lumos­ity, MyBrain­Trainer, Brain­Twister, Cogmed Work­ing Mem­ory Training.

7) The Lat­est in Men­tal Health: Work­ing Out at the ‘Brain Gym’ (Wall Street Journal)

- “Mar­shall Kahn, an 82-year-old fam­ily doc­tor in Fuller­ton, Calif., says he got such a boost from brain exer­cises he started doing at a “Nifty after Fifty” club that he decided to start see­ing patients again part-time. “Doing all the men­tal exer­cise,” he says, “I real­ized I’ve still got it.”

Debate Over Drugs For ADHD Reignites (Wash­ing­ton Post)

- “New data from a large fed­eral study have reignited a debate over the effec­tive­ness of long-term drug treat­ment of chil­dren with hyper­ac­tiv­ity or attention-deficit dis­or­der, and have drawn accu­sa­tions that some mem­bers of the research team have sought to play down evi­dence that med­ica­tions do lit­tle good beyond 24 months.”

- “The study also indi­cated that long-term use of the drugs can stunt children’s growth.”

Adap­tive train­ing leads to sus­tained enhance­ment of poor work­ing mem­ory in chil­dren (Devel­op­men­tal Science)

Abstract: Work­ing mem­ory plays a cru­cial role in sup­port­ing learn­ing, with poor progress in read­ing and math­e­mat­ics char­ac­ter­iz­ing chil­dren with low mem­ory skills. This study inves­ti­gated whether these prob­lems can be over­come by a train­ing pro­gram designed to boost work­ing mem­ory. Chil­dren with low work­ing mem­ory skills were assessed on mea­sures of work­ing mem­ory, IQ and aca­d­e­mic attain­ment before and after train­ing on either adap­tive or non-adaptive ver­sions of the pro­gram. Adap­tive train­ing that taxed work­ing mem­ory to its lim­its was asso­ci­ated with sub­stan­tial and sus­tained gains in work­ing mem­ory, with age-appropriate lev­els achieved by the major­ity of chil­dren. Math­e­mat­i­cal abil­ity also improved sig­nif­i­cantly 6 months fol­low­ing adap­tive train­ing. These find­ings indi­cate that com­mon impair­ments in work­ing mem­ory and asso­ci­ated learn­ing dif­fi­cul­ties may be over­come with this behav­ioral treatment.

9) Brain cor­tex thin­ning linked to inher­ited depres­sion (Los Ange­les Times)

- “On aver­age, peo­ple with a fam­ily his­tory of depres­sion appear to have brains that are 28% thin­ner in the right cor­tex — the out­er­most layer of the brain — than those with no known fam­ily his­tory of the dis­ease. That cor­ti­cal thin­ning, said the researchers, is on a scale sim­i­lar to that seen in patients with Alzheimer’s dis­ease or schizophrenia.”

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 »

In yesterday’s inter­view with Michael Pos­ner, he says:

- “There is a grow­ing num­ber of stud­ies that show the impor­tance of inter­ac­tion between our genes and each of our envi­ron­ments. Epi­ge­net­ics is going to help us under­stand that ques­tion bet­ter, but let me share a very inter­est­ing piece of research from my lab where we found an unusual inter­ac­tion between genet­ics and parenting.”

- “Good par­ent­ing, as mea­sured by dif­fer­ent research-based scales, has been shown to build good effort­ful con­trol which, as we saw ear­lier, is so impor­tant. Now, what we found is that some spe­cific genes reduced, even elim­i­nated, the influ­ence of the qual­ity of par­ent­ing. In other words, some children’s devel­op­ment really depends on how their par­ents bring them up, whereas oth­ers do not — or do to a much smaller extent.”

Now check out this fas­ci­nat­ing arti­cle in the Econ­o­mist:Domes­ti­ca­tion and intel­li­gence in dogs and wolves | Not so dumb animals

- “Monique Udell of the Uni­ver­sity of Florida … won­dered whether learn­ing rather than evo­lu­tion explained his obser­va­tions. Her team there­fore worked with a mix­ture of pet dogs, dogs from ani­mal shel­ters that had had min­i­mal inter­ac­tion with peo­ple, and wolves raised by humans.”

- “As they report in Ani­mal Behav­iour, the wolves out­per­formed both shel­ter dogs and pets. Indeed, Read the rest of this entry »

Great arti­cle in the New York Times titled Train­ing Young Brains to Behave. A cou­ple of quotes:

- “But just as biol­ogy shapes behav­ior, so behav­ior can accel­er­ate biol­ogy. And a small group of edu­ca­tional and cog­ni­tive sci­en­tists now say that men­tal exer­cises of a cer­tain kind can teach chil­dren to become more self-possessed at ear­lier ages, reduc­ing stress lev­els at home and improv­ing their expe­ri­ence in school. Researchers can test this abil­ity, which they call exec­u­tive func­tion, and they say it is more strongly asso­ci­ated with school suc­cess than I.Q.”

- “We know that the pre­frontal cor­tex is not fully devel­oped until the 20s, and some peo­ple will ask, Read the rest of this entry »

I just read a very inter­est­ing arti­cle in Newsweek: Exec­u­tive Func­tions: The School Skill That May Mat­ter More Than IQ. A few quotes:

- “But recent advances in psy­chol­ogy and brain sci­ence are now sug­gest­ing that a child’s abil­ity to inhibit dis­tract­ing thoughts and stay focused may be a fun­da­men­tal cog­ni­tive skill, one that plays a big part in aca­d­e­mic suc­cess from preschool on. Indeed, this and closely related skills may be more impor­tant than tra­di­tional IQ in pre­dict­ing a child’s school performance.”

- “EF (exec­u­tive func­tions) com­prises not only effort­ful con­trol and cog­ni­tive focus but also work­ing mem­ory and men­tal flex­i­bil­ity the abil­ity to adjust to change, to think out­side the box.”

- “When the teacher holds up a cir­cle they clap, with a tri­an­gle they hop, and so forth. The kids are taught to talk them­selves through the men­tal exer­cise: “OK, now clap.” “Twirl now.” This has been shown to flex and enhance the brain’s abil­ity to switch gears, to sup­press one piece of infor­ma­tion and sub in a new one. It takes dis­ci­pline; it’s the ele­men­tary school equiv­a­lent of say­ing “I really need stop think­ing about next week’s vaca­tion and focus on this report.”

The main points: exec­u­tive func­tions are cru­cial for suc­cess in life, AND they can be trained. I couldn’t agree more with the arti­cle in that cog­ni­tive train­ing should be part of the edu­ca­tion cur­ricu­lum and receive more research dol­lars to deter­mine exactly how to best do so.

I read another very inter­est­ing arti­cle on Alzheimer’s Dis­ease. Which may look like a com­pletely dif­fer­ent topic than the one above…but please bear with me. Read the rest of this entry »