Figure 6.

Subjective feelings discriminated by patterns of cardiac autonomic nervous modulations in the music session. Participants were classified into four patterns from the plus and/or minus sign of ΔLF/HF and ΔHF. (A–D) Class I: decrease in ΔLF/HF and increase in ΔHF (four participants). (E–H) Class II: increase in ΔLF/HF and decrease in ΔHF (five participants). (I–L) Class III: increase in ΔLF/HF and increase in ΔHF (six participants). Class IV: decrease in ΔLF/HF and decrease in ΔHF (one participant, data not shown). Four participants were assigned as outliers, and their data were removed before the analysis. Black and red closed circles are shown for the silent and music sessions, respectively. Data are represented as mean ± SEM and analyzed using two-way ANOVA. ^**p < 0.05 and ^*p < 0.1: significantly different between the silent session and the music session at the same time. ^†††p < 0.01, ^††p < 0.05, and ^†p < 0.1: trend significantly different than at the zero point at the beginning of the music session. Data in the silent session did not show any significant differences.