In addition to its critical role in encoding individual episodes, the hippocampus is capable of
extracting regularities across experiences. This ability is central to category learning, and a …

Real-world categories often contain exceptions that disobey the perceptual regularities
followed by other members. Prominent psychological and neurobiological theories indicate …

Statistical learning allows us to discover myriad structures in our environment, which is
saturated with information at many different levels—from items to categories. How do …

Reward magnitude is a central concept in most theories of preferential decision making and
learning. However, it is unknown whether variable rewards also influence cognitive …

Learning of exceptions–those items that violate a known regularity–takes longer than
learning of rule-following items. Studies reporting this disparity have used exceptions that …

Abstract 1 For better or worse, humans live a resource constrained existence; only 2 a
fraction of the sensations our body experiences ever reach conscious 3 awareness, and we …

In addition to its critical role in encoding individual episodes, the hippocampus is capable of
extracting regularities across experiences. This ability is central to category learning, and a …

In rule-plus-exception category learning, we must generalize across stimuli to abstract a
category rule while also detecting and remembering irregular exceptions. Existing work has …

The learning of rule-plus-exception categories relies on pattern integration and
differentiation, but how the representations of rule-followers and exceptions develop through …

In order to successfully guide generalization of knowledge, category representation needs to
be both: flexible enough to account for new evidence and stable enough to resist harmful …