Poster C118, Sunday, March 26, 5:00 – 7:00 pm, Pacific Concourse
What do the power and time development of EEG oscillations tell us? Time frequency analysis and event related synchronization in dance experts’ perception of music.
Mari-Anne Rosario1, Hiroko Nakano1; 1Saint Mary's College of California, Moraga CA USA
We report a spectral analysis of the electroencephalographic (EEG) activity of Argentine Tango dancers with an enthusiasm for tango music and general non-dancers with an enthusiasm for classical and jazz music, to investigate the effect of dance expertise on music listening. EEGs were measured as participants listened to music from their preferred genre, alternate genres, and silence. Event-related-synchronization (ERS) in the high-alpha and beta bands showed an expertise effect: Dancers showed higher ERS for the preferred condition than alternate. Non-dancers did not show a difference. ERS in high-alpha and beta in Dancers were positively correlated with years of dance experience. Non-dancers did not show a similar correlation. These results suggest that dance experts listen to music differently from non-dance experts, with alpha activity reflecting a greater ease of processing of music structures and beta activity reflecting attentive processes to tempo and rhythm associated with body movements. ERS in the gamma band revealed a preferred music effect, independent of dance experience. Both groups displayed higher ERS in the preferred condition, consistent with theories that gamma reflects the recognition and integration of familiar or meaningful stimuli. Time-frequency analysis (TFA) revealed a preferred music effect, independent of dance experience. In high-alpha, the preferred condition displayed a slower increase than alternate. In beta, the preferred condition increased and alternate decreased. In gamma, the preferred condition displayed a slower decrease than alternate. Both groups displayed similar rates of ERS change, suggesting that dancers are neither faster nor slower than non-dancers in responding to music.
Topic Area: PERCEPTION & ACTION: Other