Discrimination of stress in speech and music: A mismatch negativity (MMN) study

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Abstract
The aim of this study was to determine if duration‐related stress in speech and music is processed in a similar way in the brain. To this end, we tested 20 adults for their abstract mismatch negativity (MMN) event‐related potentials to two duration‐related stress patterns: stress on the first syllable or note (long‐short), and stress on the second syllable or note (short‐long). A significant MMN was elicited for both speech and music except for the short‐long speech stimulus. The long‐short stimuli elicited larger MMN amplitudes for speech and music compared to short‐long stimuli. An extra negativity—the late discriminative negativity (LDN)—was observed only for music. The larger MMN amplitude for long‐short stimuli might be due to the familiarity of the stress pattern in speech and music. The presence of LDN for music may reflect greater long‐term memory transfer for music stimuli.

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