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. Author manuscript; available in PMC: 2012 Feb 1.
Published in final edited form as: Eur J Neurosci. 2010 Dec 29;33(3):530–538. doi: 10.1111/j.1460-9568.2010.07527.x

Figure 1.

Figure 1

Triad arpeggios used to evoke brainstem responses. (A) Four sequences were created by concatenating three 100 ms pitches together (B) whose F0s corresponded to either prototypical (major, minor) or mistuned (detuned up, detuned down) versions of musical chords. Only the pitch of the chordal third differed between arpeggios as represented by the grayed portion of the time-waveforms (A) and F0 tracks (B). The F0 of the chordal third varied according to the stimulus: major =277 Hz, minor = 262 Hz, detuned up =287 Hz, detuned down = 252 Hz. Detuned thirds represent a 4% difference in F0 from the actual major or minor third, respectively. (C) Musical notation for the four stimulus conditions. F0, fundamental frequency.