AbstractThe idea of ​​mental imagery has always been a controversial topic in the field of psychology. Many psychologists have argued that such a concept is impossible to measure because it cannot be directly observed. Even if they are right about this, it is not impossible to measure how quickly mental rotations of images are processed in our brains. Subjects in this experiment were presented with two shapes simultaneously, via a computer screen, and were asked to judge, as quickly as possible, whether the two shapes presented were identical or mirror images. Two different forms were used in this experiment, each given as often as the other. During each trial, one shape remained stationary and the other was rotated to varying degrees of 0, 60, 120, and 180 degrees. As the rotation angle increased, reaction times were calculated to see if this had an impact on the speed of the reaction. As expected, reaction times increased along with angular disparity.Rotation of mental images: measured by reaction timesThere are a limited number of ways to discover and understand how the human mind works and reacts to things. We cannot sit back and directly observe the brain and eyes working together (James, Schneider & Rodgers, 1994). The concept behind mental image rotation attempts to achieve this by measuring reaction times as an object's angular disparity increases. Thus, demonstrating the time it takes for the eye and brain to make a connection when presented with a stimulus. Although our experiment was limited to calculating reaction times to mental rotations of images, Wohlschlager and Wohlschlager (1998) took this concept a step further to see whether mental rotation of objects and manual rotation of objects shared a common thought process in our brain. Wohlschlager & Wohlschlager (1998) based their ideas for this study on a theory, most impressively demonstrated by Cooper (1976), stating that the resemblance of mental rotation to external physical rotation calls for a mental process that mimics rotation external physics. However, there is a main difference between motion perception and mental rotation. While the perception of movement is a rather automatic process, mental rotation is strategic and shares certain characteristics with voluntary actions (Wohlschlager & Wohlschlager, 1998). In conducting their experiment...... middle of article...... 4, and 3 and 4, we see no statistical significance. The difference in degrees of rotation was not as great between these groups. Another aspect of the results that I would like to point out is that our experiment only used 10 subjects, who were not chosen at random. Only 20 subjects were used in the experiment conducted by Desrocher, Smith and Taylor (1995). I do not think that these numbers of subjects (20 and 10) are sufficient to have conclusive results. In order to obtain an accurate sample of the population, more participants should have been used in both experiments. This fact alone could be the reason why some of the results of Desrocher, Smith and Taylor (1995) were not consistent with other results. Although the objectives of the two experiments I discussed were different, the results were the same regardless of the nature of the experiment. differences could have been. In all experiments, including the one I performed, the results were consistent. The results confirm the formulated hypothesis: as the angular rotation increases, the reaction time also increases. So,..