evaluating autonomic parameters: the role of ‎sleep ‎duration in emotional responses to music ‎

objective: it has been recognized that sleep has an important effect on emotion processing. the aim ‎of this study was to investigate the effect of previous night sleep duration on autonomic ‎responses to musical stimuli in different emotional contexts.‎ method: a frequency based measure of gsr, pr and ecg signals were examined in 35 healthy ‎students in three groups of oversleeping, lack of sleep and normal sleep. results: the results of this study revealed that regardless of the emotional context of the musical ‎stimuli (happy, relax, fear, and sadness), there was an increase in the maximum power of ‎gsr, ecg and pr during the music time compared to the rest time in all the three ‎groups. in addition, the higher value of these measures was achieved while the ‎participants listened to relaxing music. statistical analysis of the extracted features ‎between each pair of emotional states revealed that the most significant differences ‎were attained for ecg signals. these differences were more obvious in the participants ‎with normal sleeping (p<10-18). the higher value of the indices has been shown, ‎comparing long sleep duration with the normal one.‎ conclusion : there was a strong relation between emotion and sleep duration, and this association can ‎be observed by means of the ecg signals.‎