The data come from a series of experiments investigating the role of action in object representation. All the experiments involved variants of the Simon task (a type of Stimulus Response Compatibility) where a task irrelevant object property (the cue-property) was used to cue a response that was compatible or incompatible with an object affordance. Participants made speeded responses according to the cue-property of the object. The main interest was to see if the object affordances for action influenced the speed and accuracy with which participants executed their responses. The dataset contains raw experimental data from 12 experiments. The data consist of reaction times and errors by condition. Variable descriptions and level information is included as variable heading and labels within the files. Reaction times corresponding to no response or error response have been coded as system-missing.