Figure 1.
Example of a melody in the On-Line Identification Test of Congenital Amusia.
Conditions for the melody are shown: no incongruity (A), time incongruity (B: ∥ refers to the silence of 5/7 of the beat duration), mistuned pitch incongruity (C: the circled note refers to the mistuned pitch), and out-of-key pitch incongruity (D).
Table 1.
Comparison of Hong Kong and Canadian Younger Participants (18–39 years old only).
Figure 2.
Comparisons of Hong Kong and Canadian participants (younger participants only) on the Online Amusia Test.
Error bars indicate standard error of the mean. Only the Out-of-Key condition shows a significant group difference (**p<.001); note that after controlling for age, education, and musical training differences, the group difference in the Out-of-Key condition remained. The Global Score also showed a significant group difference (*p = .007).
Figure 3.
Hong Kong and Canadian younger participants' Out-of-Key performance divided by group.
Musical training is classified into 5 levels: 1 = less than one year, 2 = 1–3 years, 3 = 4–6 years, 4 = 7–10 years, and 5 = more than 10 years.
Table 2.
Percentage of participants from each group who performed below three arbitrary cutoff criteria (based on Global Score).
Table 3.
Percentage of responses (proportion of participants) to questions relevant for the identification of amusic individuals.
Table 4.
Demographic information and results for participants from Experiment 2.