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

like?

On May 24, 10:40 am, likeprestige <plastic...@live.com.au> wrote:
> Things need to be added as well as _subtracted_.
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> On May 25, 12:20 am, Pontus Granström <lepon...@gmail.com> wrote:
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> > Yes, I think there are many things that should be added to the FAQ!
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> > On 5/24/11, likeprestige <plastic...@live.com.au> wrote:
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> > > FAQ?
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> > > 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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