Comparing coordinated responding in pairs of rats when both operants and aggregate products are selected by intermittent temporal consequences*

Abstract

Three pairs of rats worked in two adjacent operant chambers separated by a Plexiglas wall. In some experimental conditions, lever-presses were independent operants maintained by either a fixed-interval (FI) or variable interval (VI) schedule. In other conditions, each rat lever-press was part of two interlocked behavior contingencies as part of a metacontingency: its aggregate product, a brief flash of light, was maintained either by a FI or a VI schedule of mutual water presentation. The results clearly show that the interlocking of behavioral contingencies in the design of an experimental metacontingency established a pattern of cooperation between the rats.