Journal
JOURNAL OF NEUROSCIENCE
Volume 38, Issue 14, Pages 3534-3546Publisher
SOC NEUROSCIENCE
DOI: 10.1523/JNEUROSCI.2360-17.2018
Keywords
confidence; fMRI; memory; metacognition; MVPA; perception
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Funding
- National Institute of Neurological Disorders and Stroke of the National Institutes of Health [R01NS088628]
- Templeton Foundation [21569]
- Wellcome Trust [WT096185, 203147/Z/16/Z]
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Metacognition is the capacity to evaluate the success of one's own cognitive processes in various domains; for example, memory and perception. It remains controversial whether metacognition relies on a domain-general resource that is applied to different tasks or if self-evaluative processes are domain specific. Here, we investigated this issue directly by examining the neural substrates engaged when metacognitive judgments were made by human participants of both sexes during perceptual and memory tasks matched for stimulus and performance characteristics. By comparing patterns of fMRI activity while subjects evaluated their performance, we revealed both domain-specific and domain-general metacognitive representations. Multivoxel activity patterns in anterior prefrontal cortex predicted levels of confidence in a domain-specific fashion, whereas domain-general signals predicting confidence and accuracy were found in a widespread network in the frontal and posterior midline. The demonstration of domain-specific metacognitive representations suggests the presence of a content-rich mechanism available to introspection and cognitive control.
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