Type

Journal Article

Authors

Ian Robertson

Subjects

Psychiatry

Topics
brain lesions prefrontal cortex deficit awareness error awareness neuroscience insight error monitoring ageing

Metacognitive and online error awareness deficits after prefrontal cortex lesions (2013)

Abstract Awareness of deficits after brain injury represents a significant clinical and theoretical challenge, but relatively little is known about the neuroanatomical correlates of specific types of deficit awareness. We examined the awareness correlates of left versus right prefrontal cortex lesions in comparison to left and right posterior lesions including two types of awareness measures—metacognitive and online error monitoring. Frontal lobe frontal lesion patients exhibited impaired metacognitive awareness and also showed deficits in monitoring errors as they occurred. In addition, frontal lobe lesion patients also showed reduced autonomic response to aware errors. Online and metacognitive awareness were not, however, significantly correlated, suggesting that distinct neuroanatomical systems may underpin these two types of awareness deficit. We hypothesize that while metacognitive awareness depends on both left and right frontal regions, accurate moment-to-moment processing of errors depends more on the right than on the left prefrontal cortex.
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Full list of authors on original publication

Ian Robertson

Experts in our system

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Ian H Robertson
Trinity College Dublin
Total Publications: 142