Fig. 2From: Multisensory inclusive design with sensory substitutionDiagram to show how cross-modal associations can arise when two sensory forms overlap, in line with the metamodal hypothesis. For example, Sensory form A could be pitch (the perception of auditory frequency) and Sensory form B could be visuospatial elevation. The overlapping space would include forms that are “high” such as a high-pitched sound and an object high in elevation (cf. Melara & O’Brien, 1987).Back to article page