“…Although it is not the main objective of this study to answer questions concerning what are the potential factors that might modulate the strength of the senses-intelligence link proposed by Galton, the effects of two additional variables were examined. Given that some studies have shown that aging might strengthen the sensory-cognitive link (e.g., Lindenberger & Baltes, 1994;Salthouse et al, 1996) and that other studies (e.g., Deary, Egan, Gibson, Austin, Brand, & Kellaghan, 1996;Detterman & Daniel, 1989;Legree, Pifer, & Grafton, 1996) have reported findings supporting Spearman's dedifferentiation hypothesis (i.e., ability structure tends to be more correlated at the low ability level), we further analyzed the links between g and the sensory measures with respect to age and ability level. With respect to age, the participants were separated into a younger subsample (30 to 40 years old) and an older subsample (41 to 51 years old).…”