ABSTRACT
Schmajuk and DiCarlo (1992) presented a neural network model that describes complex classical conditioning paradigms as well as spatial learning. In the context of the network, the hippocampus is assumed to control (a) stimulus configuration in cortical regions, and (b) stimulus selection in subcortical areas. According to the model, whereas aspiration or colchicine-kainic acid lesions of the hippocampus eliminate both cortical configuration and subcortical stimulus selection, ibotenic acid lesions of the hippocampus abolish only cortical configuration. The model correctly describes most of the effects of hippocampal aspiration and ibotenic acid lesions in both classical conditioning and spatial learning paradigms.
