Testing the perceptual equivalence hypothesis in mental rotation of 3D stimuli with visual and tactile input.

Previous studies on mental rotation (i.e., the ability to imagine objects undergoing rotation; MR) have mainly focused on visual input, with comparatively less information about tactile input.

Stimulus-response links and the backward crosstalk effect - A comparison of forced- and free-choice tasks.

In dual-tasks, characteristics of Task 2 responses can already affect performance in the preceding Task 1. This is called the backward crosstalk effect (BCE). To account for the BCE, it has been suggested that the appearance of the Task 2 stimulus automatically projects activation onto the corresponding response through (transient or direct) stimulus-response (S-R) links.