engleski

Changes of Cerebral Haemodynamics During Music Perception in Musically Educated and Musically Non-Educated Listeners

Background: Several studies have shown that the perception of musical information differs between musically educated and musically non-educated individuals. The aim of our study was to determine the differences and and lateralization of changes in mean blood flow velocity (MBFV) in the middle cerebral artery (MCA) during auditory stimulation between musically educated and musically non- educated listeners. Methods: Using transcranial Doppler (TCD) we assessed MBFV in 61 healthy right-handed subjects (18 musical educated, 43 musically noneducated). The ability to play an instrument was considered the minimum criterion for musical education. First the left MCA was insolated and the subjects listened 2 minutes to a relaxing musical piece, after a pause the same was repeated with the right MCA. Half ~f the subjects were asked to relax during listening to music (passive group), the other half was asked to pay attention to the musical sounds (active group). Mann-Withney-U test was used for statistical analysis. Results: In both, musically educated and non-educated groups left MCA was activated earlier (p=0.046) and had higher MBFV (p=0.013). There was no difference in habituation in the left MCA between these two groups. In right MCA habituation was obtained earlier in musically educated than in musically non-educated group (p=0.019). Musically educated active listeners had higher MBFV in right MCA than passive listeners (p=0.028). Conclusion: Our data suggest that music perception requires bilateral activation of cerebral hemispheres. The left hemisphere is firstly and predominantly activated regardless of musical education, while right hemisphere is associative and Is connected to experience of music.

Music ; transcranial Doppler (TCD) ; musical education

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