In recent years, neuroscience research spent much effort in revealing brain activity related to metacognition. Despite this endeavor, it remains unclear exactly when metacognitive experiences develop during task performance. To investigate this, the current study used EEG to temporally and spatially dissociate task-related activity from metacognitive activity. In a masked priming paradigm, metacognitive experiences of difficulty were induced by manipulating congruency between prime and target. As expected, participants more frequently rated incongruent trials as difficult and congruent trials as easy, while being completely unable to perceive the masked primes. Results showed that both the N2 and the P3 ERP components were modulated by congruency, but that only the P3 modulation interacted with metacognitive experiences. Single-trial analysis additionally showed that the magnitude of the P3 modulation by congruency accurately predicted the metacognitive response. Source localization indicated that the N2 task-related activity originated in the ACC, whereas the P3-interplay between task-related activation and metacognitive experiences originated from the precuneus. We conclude that task-related activity can be dissociated from later metacognitive processing.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.neuropsychologia.2016.01.003 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Neural Correlates of Physical Exercise-Induced General Cognitive Gains: A Systematic Review and Meta-Analysis of Functional Magnetic Resonance Imaging Studies.
Neurosci Biobehav Rev
January 2025
School of Psychology, Research Center for Exercise and Brain Science, Shanghai University of Sport, Shanghai 200438, China. Electronic address:
The general-domain effect of physical exercise-induced cognitive gains in behavioral outcomes is well-documented, but a consensus on the neural correlates remains elusive. This meta-analysis aims to identify the neural correlates of physical exercise-induced general cognitive gains by examining task-related brain activation consistently modulated by physical exercise and its relationship to those gains. Our analysis of 52 studies with 1,503 participants shows that physical exercise enhances task performance (Hedges' g = 0.
View Article and Find Full Text PDFPrecuneus activity during retrieval is positively associated with amyloid burden in cognitively normal older carriers.
J Neurosci
January 2025
German Center for Neurodegenerative Diseases (DZNE), Magdeburg 39120, Germany
The precuneus is a site of early amyloid-beta (Aβ) accumulation. Previous cross-sectional studies reported increased precuneus fMRI activity in older adults with mild cognitive deficits or elevated Aβ. However, longitudinal studies in early Alzheimer's disease (AD) are lacking and the relationship to the Apolipoprotein-E () genotype is unclear.
View Article and Find Full Text PDF"Actor-critic" dichotomous hyperactivation and hypoconnectivity in obsessive-compulsive disorder.
Neuroimage Clin
December 2024
Coimbra Institute for Biomedical Imaging and Translational Research (CIBIT), University of Coimbra, 3000-548 Coimbra, Portugal; Institute for Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, 3000-548 Coimbra, Portugal; Faculty of Medicine, Institute of Physiology, University of Coimbra, 3004-531 Coimbra, Portugal. Electronic address:
Dysfunctional response inhibition, mediated by the striatum and its connections, is thought to underly the clinical manifestations of obsessive-compulsive disorder (OCD). However, the exact neural mechanisms remain controversial. In this study, we undertook a novel approach by positing that a) inhibition is a dynamic construct inherently susceptible to numerous failures, which require error-processing, and b) the actor-critic framework of reinforcement learning can integrate neural patterns of inhibition and error-processing in OCD with their behavioural correlates.
View Article and Find Full Text PDFMonocular eye-cueing shifts eye balance in amblyopia.
J Vis
January 2025
McGill Vision Research, Department of Ophthalmology & Visual Sciences, McGill University, Montreal, QC, Canada.
Here, we investigate the shift in eye balance in response to monocular cueing in adults with amblyopia. In normally sighted adults, biasing attention toward one eye, by presenting a monocular visual stimulus to it, can shift eye balance toward the stimulated eye, as measured by binocular rivalry. We investigated whether we can modulate eye balance by directing monocular stimulation/attention in adults with clinical binocular deficits associated with amblyopia and larger eye imbalances.
View Article and Find Full Text PDFUsing space-filling curves and fractals to reveal spatial and temporal patterns in neuroimaging data.
J Neural Eng
January 2025
Center for Complex Systems and Brain Sciences, Universidad Nacional de San Martin Escuela de Ciencia Y Tecnologia, 25 de Mayo y Francia, San Martín, Buenos Aires, 1650, ARGENTINA.
Objective Magnetic resonance imaging (MRI), functional MRI (fMRI) and other neuroimaging techniques are routinely used in medical diagnosis, cognitive neuroscience or recently in brain decoding. They produce three- or four-dimensional scans reflecting the geometry of brain tissue or activity, which is highly correlated temporally and spatially. While there exist numerous theoretically guided methods for analyzing correlations in one-dimensional data, they often cannot be readily generalized to the multidimensional geometrically embedded setting.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!