4. Discussion
The present study investigated the effect of Centella asiatica
extract on the cognitive performance and mood in the elderly.
The results from this study suggest that the ingestion of single
dose of Centella asiatica can modulate only the reaction time of
spatial memory and %accuracy of numeric working memory in
the healthy elderly.
Recently, it was found that the numeric working memory
process involved the function of lateral prefrontal cortex (PFC)
(D’Esposito et al., 1999; Smith and Jonides, 1999) whereas the
spatial memory was reported to involve hippocampus (Moser