Top-down and bottom-up treatment approaches compared in a single case of pure alexia

Le résumé fourni par la source

Background The purpose of this study was to determine which of two evidence-based treatment options (top-down or bottom-up) held the greatest promise as a long-term rehabilitation strategy for a patient with severe pure alexia.Aims A single-subject, alternate treatment, multiple baselines across behaviors design was applied to a patient with pure alexia in 22 sessions over a six-week period. Five different behaviors were measured three times prior to the beginning and at the end of treatment. The same baselines measures were used as probes after each treatment session. Each of the two treatments (top down and bottom up) was administered in a block of 8, 1-h sessions delivered over 2-week periods.Main Contribution Both bottom-up and top-down treatments resulted in large effects for trained stimuli. There also was a generalization of treatment effects following the combined delivery of the two treatments.Conclusions This is only the second report comparing the relative effectiveness of bottom-up and top-down treatment approaches for pure alexia. Results indicated that both treatment approaches were similarly beneficial for this patient who presented with a severe form of this disorder.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.