This study examined the cognitive processes in interpretation through employing Think-aloud Protocols (TAPs) among Iranian translators. The participants included 10 professional and nonprofessional translators selected through Nelson Proficiency Test. TAP and retrospective interview were used as the major instruments in order to collect the data from self-reports protocols<strong>. </strong>In order to assess the translators' mind activity in the flow of interpretation, they were administered a translation test of approximately 150 words concerning a general subject. Then, the applied cognitive processes (attention, comprehension, memory processes, and problem solving) by the participants were determined and examined. Also, for identifying the significance of differences between the translators concerning the cognitive processes, a chi-square nonparametric test was run. Analyzing the translators' performance during think aloud activity of interpretation revealed that both professional and nonprofessional translators have used the same cognitive processes and the results of the chi-square test revealed there was no significant difference between them at the level of comprehension, memory processes, and problem solving. However, significant difference was observed at the attention level. The findings can help the instructors to become aware about mental abilities and are beneficial for students and translators to improve their translation ability.
