The subjective experience of committed errors and the Discrepancy-Attribution hypothesis

In routine sequential behavior, we sometimes become aware of having committed an error. However, often we do not. Here, we investigated the processes underlying conscious error detection within a typing paradigm. Our assumption according to the Discrepancy-Attribution hypothesis is that the (explicit) judgment of having made an error is due to a perceived discrepancy between expected and actually experienced performance which then is attributed to an error. In 4 experiments, participants were instructed to type single words without seeing what they were typing and, afterwards, to judge whether typing was correct. Experiments 1 through 3 tested the assumption that conscious awareness about an error is due to a perceived discrepancy between an expectation and the experienced performance. Experiment 4 investigated the assumption of a separate attribution process triggered by the perceived discrepancy. The results support the Discrepancy-Attribution hypothesis and argue for a two-stage model of conscious error detection.

► We examine the process of explicit error detection during typing.
► Participants typed single words and afterwards judged correctness of typing.
► The first stage of error detection is a perceived performance discrepancy.
► The second stage is an attribution of discrepancy to a self committed error.