visual complexity

Independent variables in this research were four Architectural images in two dual group members of simple, complex and Islamic, non-Islamic, to examine the effect of two factors of complexity level and the subjective familiarity of the participants on two dependent variables of perceived time duration and heart rate. Also, the between factor effect of the two dependent variables, of produced time and the heart rate examined. The research design was causal-comparative, and the study population was all students of different faculties of the Tabriz Islamic Art University during the first and second semesters of the academic year2016-2017. The sample size consisted of two groups of 100 students from the population and participated in two separate experiments.The findings show that the complexity of the images affects both the production time of individuals and their heart rate. Familiarity factor of the Islamic and non-Islamic images had only a significant effect on the heart rate. Findings in many respects are consistent with the results of previous studies and show the need for the introduction of "ecological" and closer to the real environment subjects into the field time perception.