Is 9 louder than 1? Audiovisual cross-modal interactions between number magnitude and judged sound loudness.

The cross-modal impact of number magnitude (i.e. Arabic digits) on perceived sound loudness was examined.

The effects of numerical magnitude, size, and color saturation on perceived interval duration.

The relative magnitude (or intensity) of an event can have direct implications on timing estimation. Previous studies have found that greater magnitude stimuli are often reported as longer in duration than lesser magnitudes, including Arabic digits (Xuan, Zhang, He, & Chen, 2007). One explanation for these findings is that different quantitative dimensions (size, intensity, number) are processed and represented according to a common analog magnitude system (Walsh, 2003).