academic-attainment

10% Students may have working memory problems: Why does it matter?

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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 more…] about 10% Stu­dents may have work­ing mem­o­ry prob­lems: Why does it matter?

Brain Health News: Top Articles and Resources in March

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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.”

8) 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.”

8) 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.”