p052fig02.02 Feature-category resonances enable us to rapidly learn how to recognize objects without experiencing catastrophic forgetting.  Attentive matching between bottom-up feature pattern inputs and top-down expectations prevent catastrophic forgetting by focussing object attention upon expected patterns of features, while suppressing outlier features that might otherwise have caused catastophic forgetting if they were learned also.<BR>||  Adaptive Resonance. Attended feature clusters reactivate bottom-up pathways.  Activated categories reactivate their top-down pathways.  Categories STM, Feature patterns STM.  Feature-Category resonance [synchronize, amplify, prolong]s system response.  Resonance triggers learning in bottom-up and top-down adaptive weights: <I>adaptive</i> resonance!