Tones and numbers: a combined EEG-MEG study on the effects of musical expertise in magnitude comparisons of audiovisual stimuli.
Τίτλος | Tones and numbers: a combined EEG-MEG study on the effects of musical expertise in magnitude comparisons of audiovisual stimuli. |
Publication Type | Journal Article |
Year of Publication | 2014 |
Authors | Paraskevopoulos, E., Kuchenbuch A., Herholz S. C., Foroglou N., Bamidis P., & Pantev C. |
Journal | Hum Brain Mapp |
Volume | 35 |
Issue | 11 |
Pagination | 5389-400 |
Date Published | 2014 Nov |
ISSN | 1097-0193 |
Λέξεις κλειδιά | Acoustic Stimulation, Adult, Brain, Brain Mapping, Electroencephalography, Evoked Potentials, Female, Functional Laterality, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Magnetoencephalography, Male, Mathematics, Music, Photic Stimulation, Pitch Perception, Young Adult |
Abstract | This study investigated the cortical responses underlying magnitude comparisons of multisensory stimuli and examined the effect that musical expertise has in this process. The comparative judgments were based on a newly learned rule binding the auditory and visual stimuli within the context of magnitude comparisons: "the higher the pitch of the tone, the larger the number presented." The cortical responses were measured by simultaneous MEG\EEG recordings and a combined source analysis with individualized realistic head models was performed. Musical expertise effects were investigated by comparing musicians to non-musicians. Congruent audiovisual stimuli, corresponding to the newly learned rule, elicited activity in frontotemporal and occipital areas. In contrast, incongruent stimuli activated temporal and parietal regions. Musicians when compared with nonmusicians showed increased differences between congruent and incongruent stimuli in a prefrontal region, thereby indicating that music expertise may affect multisensory comparative judgments within a generalized representation of analog magnitude. |
DOI | 10.1002/hbm.22558 |
Alternate Journal | Hum Brain Mapp |
PubMed ID | 24916460 |