Analysis of the amplitudes’ behavior and their correlation with the pulsation period in solar flares. (a) Behavior of values of normalized amplitudes during flare. (b) Relationship between amplitude of normalized time series and pulsation period. The period with the strongest maximum in the Lomb-Scargle periodograms among all channels was assumed for each flare. The relationship is expressed as duration = 473.865*period + 125.955. The Pearson correlation coefficient is 0.56, and the Spearman correlation coefficient is 0.40.