AUDITORY MOTION AND VISUAL REPRESENTATIONAL MOMENTUM: EFFECTS OF RESPONSE METHOD

  • Nuno A. De Sá Teixeira
  • Timothy L. Hubbard

Abstract

Whether representational momentum results primarily from low-level mechanisms or from high-level mechanisms, and whether representational momentum for a stimulus in one modality is influenced by a stimulus in another modality, have been debated. These issues were examined in two experiments. A smoothly moving visual stimulus that ascended or descended in the picture plane was paired with a smoothly moving auditory stimulus that ascended or descended in frequency space, and visual motion and auditory motion were congruent (both ascending or both descending) or incongruent (one ascending and one descending). Representational momentum for the visual stimulus was measured by a motor localization task (cursor positioning, Experiment 1) or an identification task (probe judgment, Experiment 2). A main effect of congruency did not occur. An interaction between congruency and visual movement direction occurred in identification but not in localization. An account involving differences between visual pathways for action and for identification is suggested.

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