Interaction Among Musical, Cerebral and Autonomous Rhythms

Several studies have documented beneficial effects of music. There is considerable interest in determining how these effects come about. We have previously shown an overall increase in coherence between EEGs and autonomic variables such as heart rate, blood pressure and respiration when subjects listed to songs. In the present study we determined the coherence among different locations of EEG, heart rate and respiration with envelopes of the songs that the subjects listened to. The data used in this paper were ECG, EEGs (6 locations), finger plethysmograph blood pressure and respiration recorded from 14 healthy subject. To measure synchronization, coherence, i.e. magnitude squared coherence (MSC) was computed. In order to determine coherence of EEGs and songs with other variables with lower frequency content, we used the envelopes of the EEGs and songs, i.e. computed coherences in the low frequency components of these signals. Similar to coherencies between EEG and autonomic rhythms, we observed an overall increase in coherence among different locations of EEG. In addition, different levels of synchronization of heart rate, respiration, systolic and diastolic blood pressures and brain electrical response recorded by surface EEGs, were observed with different type of songs. Our results showed that slow tempo song had the largest impact in making all these variables synchronized to its envelope profile, and when the tempo of song was fast this level of synchronization was significantly smaller. During listening to music, the synchronization, among EEGs was more significant in T3 (with other EEGs), but the synchronization with songs’ envelope profile was more significant in T4. Also, songs with expected similar cognitive effects produced higher synchronization levels of the all measured physiological variables with their envelope profiles. These results show the important role of tempo and cognition of songs in synchronizing different physiological variables with songs’ envelopes and in suggesting interdependencies among multiple cortical areas.

[1]  中村 聡.  Analysis of music-brain interaction with simultaneous measurement of regional cerebral blood flow and electroencephalogram beta rhythm in human subjects , 2000 .

[2]  R. Ilmoniemi,et al.  Functional Specialization of the Human Auditory Cortex in Processing Phonetic and Musical Sounds: A Magnetoencephalographic (MEG) Study , 1999, NeuroImage.

[3]  B. Schack,et al.  Dynamic power and coherence analysis of ultra short-term cognitive processes — A methodical study , 2005, Brain Topography.

[4]  S. Koelsch,et al.  Electric brain responses to inappropriate harmonies during listening to expressive music , 2002, Clinical Neurophysiology.

[5]  S. Bressler.  Large-scale cortical networks and cognition , 1995, Brain Research Reviews.

[6]  Hung-Wen Chiu,et al.  Discovering EEG Signals Response to Musical Signal Stimuli by Time-frequency analysis and Independent Component Analysis , 2005, 2005 IEEE Engineering in Medicine and Biology 27th Annual Conference.

[7]  T. Bullock,et al.  Lateral coherence of the electrocorticogram: a new measure of brain synchrony. , 1989, Electroencephalography and clinical neurophysiology.

[8]  D. Schön,et al.  The music of speech: music training facilitates pitch processing in both music and language. , 2004, Psychophysiology.

[9]  Mohammad Javad Mollakazemi,et al.  Eigen Decomposition of Cardiac Synchronous EEGs for Investigation of Neural Effects of Tempo and Cognition of Songs , 2018, 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC).

[10]  W Singer,et al.  Visual feature integration and the temporal correlation hypothesis. , 1995, Annual review of neuroscience.

[11]  S A Shea,et al.  Behavioural and arousal‐related influences on breathing in humans , 1996, Experimental physiology.

[12]  Richard S. J. Frackowiak,et al.  The structural components of music perception. A functional anatomical study. , 1997, Brain : a journal of neurology.

[13]  Mohammad Javad Mollakazemi,et al.  Target Frequency Band of Cognition and Tempo of Music: Cardiac Synchronous EEG , 2018, 2018 IEEE International Symposium on Signal Processing and Information Technology (ISSPIT).

[14]  P. Fries.  A mechanism for cognitive dynamics: neuronal communication through neuronal coherence , 2005, Trends in Cognitive Sciences.

[15]  H. Petsche,et al.  Interdependencies in the spontaneous EEG while listening to music. , 2001, International journal of psychophysiology : official journal of the International Organization of Psychophysiology.

[16]  L Bernardi,et al.  Cardiovascular, cerebrovascular, and respiratory changes induced by different types of music in musicians and non-musicians: the importance of silence , 2005, Heart.