W. Todd Maddox, Maia M. Reeves, Bo Zhu, Jennifer Pacheco, & David M. Schnyer ... [2] Ashby, F.G., Alfonso-Reese, L.A., Turken, A.U., & Waldron, E.M. (1998).
Aging Effects on Rule-Based and Information-Integration Category Learning W. Todd Maddox, Maia M. Reeves, Bo Zhu, Jennifer Pacheco, & David M. Schnyer The University of Texas at Austin
Block-By-Block Accuracy 1
•Each participant completed the II and RB task (below) separated by at least 1 week. •Each task involved 6 100-trial blocks of categorization.
•Rule-based (RB) category learning is mediated by an explicit hypothesis-testing system that relies on frontal regions, whereas information-integration (II) learning is mediated by an implicit, procedural system that relies on striatal regions[2,3].
Young Elderly
0.9
Rule-Based
0.8 0.7 0.6 0.5 0.4 1
2
3
4
Rule-Based
120
Young Elderly
0.9
Information-Integration
0.8
0.6 0.5 0.4 2
3
4
6
Rule-Based
Information-Integration
.59* .74** .79** -.26
.65* .75** .78** -.70**
*= p < .05; ** p < .01
Orientation (degrees)
• Elderly performed worse than Young in RB and II (p
