Baqiyatallah University of Medical Sciences International Journal of Behavioral Sciences 2322-1194 10 3 2016 11 01 Evaluation of Positive and Negative Symptoms and Perception of Time in Patients with Chronic Schizophrenia 125 129 67955 EN Esmaeil Sadri Damirchi mohaghegh ardabili university-Education and Psychology faculity Lale Zeynalzade Fard MA in Clinical Psychology. Islamic Azad University, Ardabil Branch. Ardabil. Iran Azar Balakhani Tole Gilani MA in Clinical Psychology. Islamic Azad University, Ardabil Branch. Ardabil. Iran Jabrail Valizade MA in Clinical Psychology. Islamic Azad University, Ardabil Branch. Ardabil. Iran 0000-0003-0568-052X Journal Article 2016 05 24    The purpose of this study was to evaluate the positive and negative symptoms and the perception of time in patients with chronic schizophrenia in Isar psychiatric hospital and rehabilitation centers of Ardabil in 2014. The research design was descriptive and correlational. Therefore, 100 patients were selected through convenience sampling method. Positive and Negative Symptom Scale and Time Perception Scale have been applied for data collection. Data analysis was achieved through Pearson correlation coefficient and multiple regression analysis and results showed that there was no significant correlation between positive symptoms and agitation whit perception of time in patients with schizophrenia (p>0.05). In other words, positive symptoms and agitation do not affect the perception of time in these patients. But, there was a significant correlation between negative symptoms and disorganization with perception of time (p>0.05). Thus, with increasing of severity of negative symptoms and disorganization, the perception of time was reduced. Also, there was no negative significant correlation between anxiety and depression with visual stimuli, but there was no significant relationship between these components and auditory stimuli (p>0.05). In the other words, with increasing levels of anxiety and depression the perception of time was reduced (estimated time to visual stimuli). But increased rates of anxiety and depression have no effect on the perception of time (estimated auditory stimuli). The positive and negative symptoms have the ability to predict visual stimuli and auditory stimuli in 25% and 16%, respectively. As a result, in patients with schizophrenia according to the positive and negative symptoms the response time  to the audio and visual stimulus is different. https://www.behavsci.ir/article_67955_2c9ef150b5e90fb54ba9a184e3547de1.pdf