Re: PNB vs DNB - Interesting results

Yeah, i havent practice at it........i just 'tried' it to see.........

On May 21, 12:28 pm, Ian <unfunfowns...@gmail.com> wrote:
> So I decided to try position-n-back for a while in order to help train
> myself in that area, as I am weaker in it than with audio, according
> to my dnb results.
>
> I've come across something interesting, and I am wondering if this
> holds true for others as well.
>
> I am only marginally better at PNB than DNB. I average P8B at high 60s
> to very low 70s, where as I average D8B at mid 50s to low 60s. I would
> have expected to be able to do around P10B or so, as I thought D8B
> suggested I was keeping roughly 10 items in my head at once. (Not 16
> items, as I can only do D8B at around 60% accuracy on average (I vary
> from 50-70% and generally fall around 56-64%.). 16 Items would be if I
> did D8B at 95%+.)
>
> Now there may be a more reasonable explanation, and that is time.
> Perhaps I am able to keep 10 items in my head at once, but only for a
> very short period of time. Since the time between stimulus for DNB and
> PNB is still the same (3 seconds), just the number changes, it's
> possible that at 24 seconds (8 positons * 3 second delay each) I have
> already lost quite a bit of information in my WM. Perhaps I can even
> calculate the time at which information starts to decay for me. If so,
> I can adjust the stimulus delay so that I can take in more stimuli
> within the decay time. Of course, if the rate of presentation is too
> fast, then the information will decay even faster.
>
> I will try a 2.5 second delay and note the results.
>
> Anyway, has anyone else here encountered the same phenomena? How do
> your PNB results scale to your DNB results? Was it as you expected?

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