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. Author manuscript; available in PMC: 2017 Jan 24.
Published in final edited form as: J Alzheimers Dis. 2017;55(3):933–949. doi: 10.3233/JAD-160359

Figure 2. Schematic representation of the experimental music battery.

Figure 2

Examples of stimuli used for all tests in the music experimental battery. Roman numerals I to V code the presentation order of tests comprising the battery. For all deviance detection tasks, deviant notes are shown in red; for the timbral deviant detection task, the red notes signify a change in spectral envelope. For illustrative purposes, local and global deviants are shown here within the same trial; however, the experimental stimuli as presented contained only a single deviant type (condition) per trial. The tune recognition tests comprised a test of musical scene analysis (decision on familiarity of tunes presented with polyphonic harmony; target shown on top stave for each example) and a baseline test of tune recognition (decision on familiarity of tunes presented in isolation, acting as a control for the tune streaming task); examples represent Auld Lang Syne in natural and pseudo-reversed forms (see section 2.2 and supplementary material for details).