Sixteen male dyslexic children were seen again when adults and matched with 14 student volunteers for a 21-day trial of piracetam. It was found, using a double-blind cross-over technique, that dyslexics significantly increased their verbal learning by 15.0% and students by 8.6% (over and above their placebo increase).
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Wilsher, C., Atkins, G. & Manfield, P. Piracetam as an aid to learning in dyslexia. Psychopharmacology 65, 107–109 (1979). https://doi.org/10.1007/BF00491989
- Verbal learning