Submission 562
Perfectionistic Error Processing: Modelling Erroneous Response and Error Evaluation
SymposiumTalk-03
Presented by: Jutta Stahl
Error processing is an essential metacognitive function that plays an essential role in everyday life. Previous research has shown that individuals differ in various indicators of error processing. For example, those with high perfectionistic concerns (ECP) exhibit reduced early error-related brain activity, whereas individuals with high perfectionistic standards (PSP) show increased late error-related brain activity and better behavioural adaptation (post-error behaviour). In the present work, we present modelling data from two distinct decision processes: (a) correct and incorrect responses in a two-choice task (Study 1, n = 100), and (b) evaluation decisions following responses in a main task, in which participants evaluated whether their own response was correct or incorrect (Study 2, N = 137). Using a hierarchical drift diffusion model (HDDM), we modelled both types of decisions—the choice leading to an error or a correct response, and the accuracy evaluation of one’s own response. The HDDM results revealed a reduced drift rate in the main task for individuals high in ECP when block feedback was provided, whereas participants high in PSP showed the highest drift rate under this condition (Study 1). In the response evaluation task (Study 2), higher PSP scores were associated with higher drift rates and higher starting points. These findings are discussed within the framework of the capacity hypothesis for ECP and the optimization hypothesis for PSP.