January 10th
Jan Wessel
Psychology Dept, UC San Diego
Error awareness, error blindness and unexpected outcomes:The dorso-medial prefrontal cortex and beyond
Abstract. Commiting errors and making mistakes is a part of everyday life. One interesting phenomenon, however, is that not all erroneous actions are immediately recognized by the actor. I will present several studies that outline differences in central and autonomic nervous processing of errors that lead to (or prevent) conscious error recognition. As will be shown, the dorsal part of the medial prefrontal cortex (dmPFC), a central part of the prefrontal performance monitoring network, is a key player in the emergence of (conscious) error recognition. Using event-related brain potentials (ERPs), I will demonstrate that activity in this part of cortex is predictive of the degree of error awareness and of the implementation of appropriate remedial actions. To this end, I will introduce a method for the automated selection of independent source signal components (as identified by Independent Component Analysis) from the scalp EEG, which will then be used to enable single-trial ERP investigations. I will further provide evidence for recent accounts that hypothesize that instead of merely coding the erroneousity of actions, the dmPFC instead recognizes infrequent, unexpected events in general, leading to a broader framework of the implementation of performance monitoring in the prefrontal cortex
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