Personal tools
 
You are here: McMaster Institute for Music and the Mind > Publications > Simultaneous pitches are encoded separately in auditory cortex: an MMNm study

Takako Fujioka, Laurel J Trainor, and Bernhard Ross (2008)

Simultaneous pitches are encoded separately in auditory cortex: an MMNm study

NeuroReport, 19(3):361-366.

This study examined whether two simultaneous pitches have separate memory representations or an integrated representation in preattentive auditory memory.Mismatch negativity fields were examined when a pitch change occurred in either the higher-pitched or the lower-pitched tone at 25% probability each, thus making the total deviation rate of the two-tone dyad 50%. Clear MMNm was obtained for deviants in both tones confirming separate memory traces for concurrent tones. At the same time, deviants to the lower-pitched, but not higher-pitched, tone within the two-tone dyad elicited a reduced MMNm compared to when each tone was presented alone, indicating that the representations of two pitches are not completely independent.

automatic medline import
 

Document Actions