Behavioral and Brain Sciences

Open Peer Commentary
Schyns, P. G., et al.: The development of features in object concepts

The other hard problem: How to bridge the gap between symbolic and subsymbolic cognition

Axel Cleeremans a1
a1 Cognitive Science Research Unit, Université Libre de Bruxelles CP 122, 1050 Bruxelles, Belgium [email protected]


The constructivist notion that features are purely functional is incompatible with the classical computational metaphor of mind. I suggest that the discontent expressed by Schyns, Goldstone & Thibaut about fixed-features theories of categorization reflects the growing impact of connectionism. Their perspective is similar to recent research on implicit learning, consciousness, and development. A hard problem remains, however: how to bridge the gap between subsymbolic and symbolic cognition.