Tuesday, 24 May 2011

Re: Title: Changes in cortical activity after training of working memory — a single-subject analysis

He's going to bring up some of the anecdotes, like he did before. In
all honesty I'd agree, since a majority of those anecdotes came riding
off the tailcoats of the n-back hype. I would think that they'd be
subject to some confirmation bias in which case.

On May 25, 5:07 am, "Mike L." <cool2bwi...@gmail.com> wrote:
> like?
>
> On May 24, 10:40 am, likeprestige <plastic...@live.com.au> wrote:
>
>
>
> > Things need to be added as well as _subtracted_.
>
> > On May 25, 12:20 am, Pontus Granström <lepon...@gmail.com> wrote:
>
> > > Yes, I think there are many things that should be added to the FAQ!
>
> > > On 5/24/11, likeprestige <plastic...@live.com.au> wrote:
>
> > > > FAQ?
>
> > > > On May 24, 11:19 pm, likeprestige <plastic...@live.com.au> wrote:
> > > >> Title: Changes in cortical activity after training of working memory —
> > > >> a single-subject analysis
>
> > > >> Abstract: Working memory (WM) capacity is an important factor for a
> > > >> wide range of cognitive skills. This capacity has generally been
> > > >> assumed to be fixed. However, recent studies have suggested that WM
> > > >> can be improved by intensive, computerized training [Klingberg T,
> > > >> Fernell E, Olesen P, Johnson M, Gustafsson P, Dahlström K, et al.
> > > >> Computerized training of working memory in children with ADHD — a
> > > >> randomized, controlled trial. J Am Acad Child Adolesc Psych
> > > >> 2005;44:177--86]. A recent study by Olesen, Westerberg and Klingberg
> > > >> [Olesen P, Westerberg H, Klingberg T. Increased prefrontal and
> > > >> parietal brain activity after training of working memory. Nat Neurosci
> > > >> 2004;7:75--9] showed that group analysis of brain activity data show
> > > >> increases in prefrontal and parietal cortices after WM training. In
> > > >> the present study we performed single-subject analysis of the changes
> > > >> in brain activity after five weeks of training.
> > > >> Three young, healthy adults participated in the study. On two separate
> > > >> days before practice and during one day after practice, brain activity
> > > >> was measured with functional magnetic resonance imaging (fMRI) during
> > > >> performance of a WM and a baseline task. Practice on the WM tasks
> > > >> gradually improved performance and this effect lasted several months.
> > > >> The effect of practice also generalized to improve performance on a
> > > >> non-trained WM task and a reasoning task. After training, WM-related
> > > >> brain activity was significantly increased in the middle and inferior
> > > >> frontal gyrus. The changes in activity were not due to activations of
> > > >> any additional area that was not activated before training. Instead,
> > > >> the changes could best be described by small increases in the extent
> > > >> of the area of activated cortex. The effect of training of WM is thus
> > > >> in several respects similar to the changes in the functional map
> > > >> observed in primate studies of skill learning, although the
> > > >> physiological effect in WM training is located in the prefrontal
> > > >> association cortex.
>
> > > > --
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