Exploring hand movement dynamics during the Simon task: a mouse tracking study.

İkizoğlu, Hatice Buke
Understanding how the cognitive system processes information in real-time is one of the key concerns for researchers in experimental psychology and cognitive science. Several measures and software tools have been proposed to explore different aspects of cognitive processing phenomena. One of these methods, mouse-tracking, allows researchers to collect data about the dynamic unfolding of motor responses by recording the participants’ mouse movements during cognitive tasks. In the present study, we replicated the Simon effect, which is known as the “stimulus-response compatibility effect” in a Mouse tracking paradigm. We investigated the impact of design factors on Mouse-tracking data by placing the response alternatives at the bottom corners rather than at the top. We also performed an additional experiment, including the reverse Simon Effect. Consistent with previous studies, the mouse tracker experiments conducted in this thesis showed a significant stimulus-response compatibility effect while the response directions towards the left and right corners are not entirely symmetric in the conflict cases. On the other hand, switching the response mapping to top-to-bottom has increased the asymmetry between left and right cases during conflict trials. Lastly, the reversal effect was observed vividly in the case of y-flips, which seemed to be the best indicator for the process of adjusting to the new color-response pairing.