Advance specification and programming interactions: A reply to Rosenbaum,Barnes, and Slotta (1988)

Summary Choice reaction time often depends on the relation between the responses from which subjects have to choose. Rosenbaum, Barnes, and Slotta (1988) criticized the interpretation of a particular set of such effects which can be observed when subjects have to choose between left-hand and right-hand responses that have same or different spatio-temporal patterns. This set of effects had been interpreted in terms of a programming interactions (PI) hypothesis rather than in terms of the more popular advance specification (AS) hypothesis which is the foundation of a major portion of motor-programming research. It is made clear that the controversy is not about whether the one or the other hypothesis is correct in general, but about whether there are exceptions which cannot be interpreted in terms of the AS hypothesis. Further it is argued that the particular set of effects represents such an exception. It is shown that Rosenbaum et al. claim that the data are consistent with the AS hypothesis and inconsistent with the PI hypothesis is untenable.Supported by Deutsche Forschungsgemeinschaft (grant He 1187/3-1)