Table 3.

Means ± SD of median Reaction Times (ms) of community-dwelling non-diabetic elderlies (n = 130) and co-aged diabetics (n = 22, within brackets) calculated for the four types of switch and non-switch trials used to compute RT differences as estimates of switch costs.

Type of trial	RT ± SD	RT difference
Switch to global (STG)	697 ± 187 (811 ± 210)	Switch to global: 87 ± 158 (155 ± 172)
Non-switch global (NSG)	610 ± 142 (656 ± 185)
Switch to local (STL)	754 ± 233 (837 ± 231)	Switch to local: -6 ± 156 (5 ± 165)
Non-switch local (NSL)	760 ± 223 (832 ± 235)

Data are collapsed across SOAs.