Electroencephalographic Study of Gamma Rhythm in the Autobiographical Memory Evocation Mediated by Musical Stimuli - World Journal of Neuroscience

WJNS > Vol.9 No.3, August 2019

Electroencephalographic Study of Gamma Rhythm in the Autobiographical Memory Evocation Mediated by Musical Stimuli ()

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DOI: 10.4236/wjns.2019.93013 649 Downloads 1,457 Views

Author(s)

Maria Clara Motta Barbosa Valente¹, Matheus Simões Oliveira², Karlos Eduardo Alves Silva¹, Berkmis Viana Santos¹, Janise Dal Pai³, Reginaldo Melo Filho¹, Fany Pereira de Araújo Soares¹, Júlia Maria Pacheco Lins², Kristiana Cerqueira Mousinho², Milton Vieira Costa¹, Euclides Maurício Trindade-Filho^1,2

Affiliation(s)

¹Neurosciences and Cognition Laboratory, Universidade Estadual de Ciências da Saúde de Alagoas (UNCISAL), Maceió, AL, Brazil.
²Centro Universitário CESMAC, Maceió, AL, Brazil.
³Neurology and Neurosurgery Department, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.

ABSTRACT

Listening to music, or part of it, may stir the memory of a past moment, along with its associated emotions, such occurrences are known as autobiographical memories. Electroencephalographic (EEG) studies have shown alterations in memory recall and musical processing. However, no research was found showing a relation among music, autobiographical memories and associated emotions. The purpose of this study was to identify cortical areas involved in the evocation of autobiographical memory (associated with positive and negative events) mediated by musical stimuli. For that, gamma rhythm was analyzed through EEG recordings performed by 45 male volunteers while they were submitted to two stimuli: 1) the music capable of recalling memories associated to a positive event; 2) the music capable of evoking memories associated to a negative event. Gamma band analysis was used in search of greater brain electrical activity. As results, researchers observed increased activity in right brain hemisphere during the musical processing, besides its hypoactivation when volunteers were submitted to musical stimuli related to memories of negative events.

KEYWORDS

Electroencephalogram, Music, Emotions, Gamma Rhythm

Share and Cite:

Valente, M. , Oliveira, M. , Silva, K. , Santos, B. , Pai, J. , Filho, R. , Soares, F. , Lins, J. , Mousinho, K. , Costa, M. and Trindade-Filho, E. (2019) Electroencephalographic Study of Gamma Rhythm in the Autobiographical Memory Evocation Mediated by Musical Stimuli. World Journal of Neuroscience, 9, 199-207. doi: 10.4236/wjns.2019.93013.

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