Tehran University of Medical Sciences Iranian Journal of Psychiatry 1735-4587 11 1 2016 02 23 59 63 EN Atefeh Goshvarpour Computational Neuroscience Laboratory, Department of Biomedical Engineering, Faculty of Electrical Engineering, Sahand University of Technology, Tabriz, Iran Ataollah Abbasi Computational Neuroscience Laboratory, Department of Biomedical Engineering, Faculty of Electrical Engineering, Sahand University of Technology, Tabriz, Iran Ateke Goshvarpour Computational Neuroscience Laboratory, Department of Biomedical Engineering, Faculty of Electrical Engineering, Sahand University of Technology, Tabriz, Iran 2016 02 22 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.‎   https://ijps.tums.ac.ir/index.php/ijps/article/view/627 https://ijps.tums.ac.ir/index.php/ijps/article/download/627/547