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Neural Correlates of Beat-Patterns with Multiple Metrical Levels: Beat Perception and Sensorimotor Synchronisation Investigated with EEG (CROSBI ID 397193)

Ocjenski rad | diplomski rad

Schlichting, Nadine Neural Correlates of Beat-Patterns with Multiple Metrical Levels: Beat Perception and Sensorimotor Synchronisation Investigated with EEG / Palmović, Marijan (mentor); Beč, . 2015

Podaci o odgovornosti

Schlichting, Nadine

Palmović, Marijan

engleski

Neural Correlates of Beat-Patterns with Multiple Metrical Levels: Beat Perception and Sensorimotor Synchronisation Investigated with EEG

Music and beat perception are strongly connected to movement, a phenomenon known as sensorimotor synchronisation. How are we able to synchronise movements to external events, given perceptual processing and action planning delays? Neurophysiologically, simple metronome-like beat sounds entrain neural oscillations, so that the brain oscillates with the same frequency as the beat frequency. But in our everyday environment beats rarely occur without being embedded in rhythmical and metrical structures (e.g. music). The current study seeks to examine how more complex rhythmical sounds are creating temporal expectancies and how multiple explicit metrical structures are represented in the brain. Electroencephalogram recordings were obtained while participants listened to beat-sounds varying in metrical complexity and inter-beat- intervals. Their task was to synchronise finger movements to the first-level beat. When tapping along to the faster beat performance was almost equally good in all conditions. Importantly, additional metrical levels embedded in the beat sounds increased synchronisation accuracy for longer interbeat-intervals. Looking at the frequency spectres of the obtained EEG data, entrained oscillations emerged at the beat and meter frequencies, though results are clouded by harmonic distortions. Taken together, results highlight the dynamic, proactive and predictive character of brain functions spanning across multiple distant brain areas.

beats; multiple metrical levels; beat perception; eeg; frequency analysis

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Podaci o izdanju

65

30.07.2015.

obranjeno

Podaci o ustanovi koja je dodijelila akademski stupanj

Beč

Povezanost rada

Informacijske i komunikacijske znanosti, Psihologija