Fig 1.
Individual data for examination-induced changes in state anxiety from rest session to the exam session.
(A) Increasing from low to moderate anxiety levels. (B) Increasing from low to high anxiety levels. (C) Increasing from moderate to high anxiety levels. (D) Absence of qualitative changes in anxiety.
Table 1.
Comparison between the two conditions of the study for heart rate variability analysis.
Fig 2.
Poincaré plots during the rest (A) and exam sessions (B).
Fig 3.
Guzik’s indexes for the rest session (panel A) and exam session (panel B).
Fig 4.
Correlation between the dynamics of state anxiety (DYN SA = SA at exam − SA at rest) and Largest Lyapunov exponent (LLE; DIN LLE = LLE at exam − LLE at rest).
Table 2.
Pearson correlations between Poincaré plot dimensions, measures of entropy, short- and long-term exponents, Largest Lyapunov exponent, pointwise correlation dimension, and heart rate.
Table 3.
Heart rate-corrected measures of heart rate variability.