Modifying Deutsch’s scale illusion for application in music
Fig 11
Mean ratios of melodies perceived clearly when compared to other versions.
The results were almost identical regardless of the passage. Compared to ratio of the dichotic versions 2TL and CN, the ratio was lower when "jagged" tone patterns were heard diotically (2TLR, 2TLL, CNR, and CNL). The ratio of version 2TL was lower than that of DO when subjects heard the "Lightly Row" or "Jingle Bells" passage. In the case of "Cherry Blossoms," the ratio of 2TL was not statistically different from that of DO. There were no statistically significant differences between the ratios for DO and CN for all three passages. In the graphs, the results of Experiment 2a are drawn as a reference (dotted bars). *: p < 0.05. ns: not significant.