This study investigated the application of the self-generation effect to enhance the recognition and retention of Blissymbols in
persons with severe aphasia. A 2 × 2 × 3 factorial design of two treatment types (self-generation and non-generation) was used to
teach two sets of Blissymbols. These were administered during 3 training days, between which were withdrawal periods of 1 day
and 7 days. Recognition and retention probes were administered at intervals during the training. ANOVA analysis showed that
the self-generation treatment produced no immediate recognition advantage; however, better retention of symbol recognition may
have occurred over time. Hence, the potential application of the self-generation effect in enhancing the retention of Blissymbols in
persons with severe aphasia may warrant further investigation.
This research was a PhD study submitted to the Center
for Augmentative and Alternative Communication,
University of Pretoria, South Africa.