Domain-specific impairment in metacognitive accuracy following anterior prefrontal lesions

Stephen M. Fleming, Jihye Ryu, John G. Golfinos, Karen E. Blackmon

Research output: Contribution to journalArticlepeer-review

203 Citations (Scopus)

Abstract

Humans have the capacity to evaluate the success of cognitive processes, known as metacognition. Convergent evidence supports a role for anterior prefrontal cortex in metacognitive judgements of perceptual processes. However, it is unknown whether metacognition is a global phenomenon, with anterior prefrontal cortex supporting metacognition across domains, or whether it relies on domain-specific neural substrates. To address this question, we measured metacognitive accuracy in patients with lesions to anterior prefrontal cortex (n = 7) in two distinct domains, perception and memory, by assessing the correspondence between objective performance and subjective ratings of performance. Despite performing equivalently to a comparison group with temporal lobe lesions (n = 11) and healthy controls (n = 19), patients with lesions to the anterior prefrontal cortex showed a selective deficit in perceptual metacognitive accuracy (meta-d'/d', 95% confidence interval 0.28-0.64). Crucially, however, the anterior prefrontal cortex lesion group's metacognitive accuracy on an equivalent memory task remained unimpaired (meta-d'/d', 95% confidence interval 0.78-1.29). Metacognitive accuracy in the temporal lobe group was intact in both domains. Our results support a causal role for anterior prefrontal cortex in perceptual metacognition, and indicate that the neural architecture of metacognition, while often considered global and domain-general, comprises domain-specific components that may be differentially affected by neurological insult.

Original languageEnglish
Pages (from-to)2811-2822
Number of pages12
JournalBrain
Volume137
Issue number10
DOIs
Publication statusPublished - Oct 2014
Externally publishedYes

Keywords

  • Cognitive control
  • Consciousness
  • Neuropsychology
  • Prefrontal cortex
  • Temporal lobe

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