Fig. 3.

Relationships between representational rigidity and behavior. (A) We found a negative relationship between the left DG/CA3 slope of activity in older adults and their separation bias on an explicit recognition task designed to tax their pattern separation abilities, suggesting that processing in this region plays a key role in discrimination and that its dysfunction with age may underlie mnemonic deficits. (B) We also found a marginally significant relationship between the left DG/CA3 slope of activity in older adults and their performance on a delayed recall task (verbal list learning), which is a general index of their hippocampal function.