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. Author manuscript; available in PMC: 2017 Aug 21.
Published in final edited form as: J Comp Psychol. 2014 Oct 6;129(1):42–51. doi: 10.1037/a0037991

Table 2. Stimuli Used During Training and Test in Experiments 2 and 3.

Training and Test
Set A Set B
Intervals Ratio Intervals Ratio
Major 7th (C-B) 15:8 Tritone (C-F#) 45:32
Minor 9th (C-C'#) 15:32 Minor 2nd (C-C#) 16:15
Major 2nd (C-D) 9:8 Minor 7th (C-B♭) 16:9

Note. Chords, with notes in parenthesis and frequency ratio, used in experiments 2 and 3. Rats and human participants were trained to discriminate between two sets of dissonant chords. In the test phase, subjects were required to discriminate between the same two sets of dissonant chords but implemented at different octaves.