Characterization of Electroencephalogram Obtained During the Resolution of Mathematical Operations Using Recurrence Quantification Analysis

Author(s)

Mendes, A. P. ; Jarola, G. M. ; Oliveira, L. M. A. ; Gerhardt, G. J. L. ; Rybarczyk-Filho, J. L. ; dos Santos, L. ; Bastos-Filho, TF ; Caldeira, EMD ; Frizera-Neto, A

• Document type: Journal article
• Source: XXVII BRAZILIAN CONGRESS ON BIOMEDICAL ENGINEERING, CBEB 2020; v. N/A, p. 7-pg., 2022-01-01.

Abstract

This work aims to apply recurrence quantification analysis to characterize electroencephalogram signals, in resting and active state situations involving mathematical operation resolution. The best values of the incorporation parameters (delay time, embedding dimension, and threshold) are investigated to obtain the best ranking results. The measures of the recurrence quantification analysis used are recurrence rate, determinism, overage length of diagonal structures, Shannon entropy, laminarity, and maximum length of vertical structures. To compare between resting and active state, the Mann-Whitney test was performed. The results demonstrate that the resting state is predominant in the alpha and theta experiments. Statistical differences were observed in the comparisons between resting and active state for alpha and theta experiments, active state alpha and active state theta experiments and resting and active state for theta experiments. (AU)

• FAPESP's process: 18/03517-8 - Association between heart rate variability and salivary cortisol for the evaluation of individuals under stress conditions by means of nonlinear analysis and artificial intelligence methods
• Grantee: Laurita dos Santos
• Support Opportunities: Regular Research Grants