The less complex temporal patterns of restingstate EEG activity, the lower the visual temporal order threshold.
Acta Neurobiol Exp (Wars)
; 83(4): 359-376, 2023 Nov 30.
Article
em En
| MEDLINE
| ID: mdl-38224285
ABSTRACT
Speech understanding, watching a movie, listening to music etc., requires perception of the temporal order of at least two incoming events. A history of performing these tasks may be reflected in spontaneous brain activity. Here, we examined the relationship between the complexity (temporal dynamics) of restingstate EEG (rsEEG) signal, assessed using the multivariate MultiScale Entropy (mMSE) algorithm, and the perception of event ordering, indexed by a visual temporal order threshold (TOT), i.e., the minimum duration necessary to correctly identify the beforeafter relation between two stimuli. Healthy adolescents and young adults performed a psychophysical task measuring the TOT and underwent an eyesclosed rsEEG study. The features of mMSE vectors, namely the area under curve (AUC) that represents total signal complexity, as well as the MaxSlope and the AvgEnt, corresponding to the entropy at fine and coarsegrained timescales, respectively, were obtained for the central (midline), anterior, middle and posterior channel sets. The greater the AUC and AvgEnt values in the central, left and right posterior areas, and the higher AUC in the right middle region, the higher the TOT. The most significant relationships were found for the midline electrodes (Fz, Cz, Pz, Oz). There were no significant correlations between the MaxSlope values and the TOT. To the best of our knowledge, this is the first study demonstrating that spontaneous EEG signal complexity is associated with the temporal order perception of two stimuli presented in rapid succession. Our findings may indicate that low total and coarse entropy levels of rsEEG signal are beneficial for visual temporal order judgments.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Percepção do Tempo
/
Encéfalo
Tipo de estudo:
Prognostic_studies
Limite:
Adolescent
/
Adult
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Humans
Idioma:
En
Revista:
Acta Neurobiol Exp (Wars)
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Polônia