Abstraction of temporal attributes.

Four experiments demonstrated cross-modal transfer (CMT) of classification rules for temporal intervals. In Exp I, 20 male albino Norway rats learned a temporal discrimination between a 2- and an 8-sec signal in one modality (vision or audition). Results show positive transfer to a temporal discrimination between a 2- and an 8-sec signal in the other modality when the response rule was maintained, and negative transfer when the response rule was reversed. Exp II with 20 Ss demonstrated positive CMT in a temporal generalization procedure. Exp III demonstrated CMT of both duration and temporal location in a procedure in which 20 Ss were exposed to 3 successive signal durations. Exp IV demonstrated CMT of both duration and temporal order in a procedure in which 5 Ss were exposed to simultaneously presented signal durations, one auditory and one visual. It is concluded that rats can abstract temporal attributes from modality-specific aspects of a signal. (38 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)