Prospects for Improving Cognition Throughout the Life Course

摘要

Hertzog et al. do an admirable job describing how cognitivetrajectories can and do differ over the life span in response tovarious types of enrichment, good and poor choices in individualbehavior, and random shocks. They also mention the potentialcontribution of genes to different patterns of decline. But,strikingly, they do not mention the kinds of natural experimentsthat we feel clearly demonstrate how powerful differences inenvironment truly are, and-why study of gene-environmentinterplay might be an important tool for understanding whatenrichment truly requires.