This app was mentioned in 4 comments, with an average of 1.00 upvote
https://play.google.com/store/apps/details?id=cz.wie.p.nback&hl=en_US
This. Just make sure you use intuition (I.e. 'guessing '),no rehearsal, chunking or subvocalisation anything similar. It's worked for me only if I do it that way. Nback braintraining has been shown often to lead to significant working memory or iq gains. Even those who find a lower or no effect for people without working memory deficits agree that there's a larger effect for ADHDers
I'm using this android app: https://play.google.com/store/apps/details?id=cz.wie.p.nback&hl=en_US
Even though the studies usually use a vocal and a spacial stimuli, form and colour do afaik (though take it with a grain of salt as Im not educated on the matter) not work any less than sound. Atleast in the app I have you can freely choose between a single or combination out of sound, position, number and colour.
I didn't know David Asprey. His diet sounds questionable to me, why fats of all things? Isn't a diet rich in fats gonna lead to plaque build-up and countless microinfarcts in the brain?
To n-back. À session takes around 20 min. Also headache after a session is normal. A good way to start is to look at the most common error pointed out in the quote of one of the Jaeggi who's known as the scientist that drew public attention onto the connection between n-back and working memory :
https://reddit.com/r/DualnBack/comments/3wm8et/how_do_you_remember_signals/d1ehucn?context=3
I have used the following method: 20 min daily x 20 days @2mA. 5 with treatment, 2 days rest. Location - left hairline, right over eyebrow.
If you have an Android device, this N-Back app by Piotr is the best i have tried: https://play.google.com/store/apps/details?id=cz.wie.p.nback
It has all the features u need as well as a nifty tracking chart to see your progress. I would recommemd u use figure n location cue if you were having trouble w the audial cues. Then again, maybe your problems were due to not applying the full 20 minutes. Also, try advancing to a next n level when you consistently reach over 90% success in both parameters or else set it to auto-advance.
I have had several successful cases with this setup, on naive subjects ( both for tDCS & n-back training) as well as myself. I would like to hear how it goes.
Yes, this one does have a lot more options. Thanks for the recommendation. https://play.google.com/store/apps/details?id=cz.wie.p.nback