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8 results

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Neural mechanisms of metacognitive improvements under speed pressure

Caleb Stone, Jason Mattingley, Dragan Rangelov · FENS Forum 2024

The ability to accurately monitor the quality of one’s decisions (i.e., metacognition) is critical for adaptive decision-making. Past research has found that metacognition is enhanced when participants respond under speed pressure, possibly due to elaborated post-decisional evidence processing. Here, we investigated the time-course of evidence processing under different speed pressures using time-resolved analysis of electroencephalographic (EEG) data. Forty participants performed a motion discrimination task under short and long response deadlines. Following the initial response, participants

ePoster · Neuroscience

Metacognition encompasses the capability to monitor and control one’s cognitive processes. According to brain imaging, prospective and retrospective second-order judgments recruit widespread portions of prefrontal cortex (PFC), thus leaving the neuronal architecture underlying metacognitive knowledge poorly understood. This pilot experiment makes use of transcranial Direct Current Stimulation (tDCS) targeting the ventromedial PFC (vmPFC) to understand whether this brain region occupies a crucial role in sustaining metacognition. A randomized, double-blind, within-subjects research design was u

ePoster · Cognition

Effect of Different Influences on Temporal Error Monitoring

Tutku Öztel · Koç University, Istanbul

Metacognition has long been defined as “cognition about cognition”. One of its aspects is the error monitoring ability, which includes being aware of one’s own errors without external feedback. This ability is mostly investigated in two-alternative forced choice tasks, where the performance has all or none nature in terms of accuracy. The previous literature documents the effect of different influences on the error monitoring ability, such as working memory, feedback and sensorimotor involvement. However, these demonstrations fall short of generalizing to the real life scenarios where the erro

Wed, Mar 29, 2023 · 04:00 UTC

Seminar · Cognition

Theories of consciousness: beyond the first/higher-order distinction

Jonathan Birch · London School of Economics and Political Science

…mechanism must involve a form of metacognition. The second is Lau's "perceptual reality monitoring" (PRM) theory, a member of the "higher-order" family in which conscious sensory content is not re-represented, only tagged with a te

Sat, Sep 10, 2022 · 01:00 UTC

Seminar · Consciousness

In this talk I will present an account of how an agent designed or evolved to be intelligent may come to enjoy subjective experiences. First, the agent is stipulated to be capable of (meta)representing subjective ‘qualitative’ sensory information, in the sense that it can easily assess how exactly similar a sensory signal is to all other possible sensory signals. This information is subjective in the sense that it concerns how the different stimuli can be distinguished by the agent itself, rather than how physically similar they are. For this to happen, sensory coding needs to satisfy sparsity

Fri, Dec 3, 2021 · 18:00 UTC

Seminar · Consciousness

…studies on the neural mechanism for metacognition on memory in macaque monkeys. In reality, awareness of ignorance is essential not only for the retrospection of the past but also for the exploration of novel unfamiliar environments for the future. However, this proactive feature of

Fri, Sep 3, 2021 · 23:00 UTC

Seminar · Cognition

…functions (such as abstraction or metacognition) may be part of the solution by generating low dimensional representations on which RL can operate. In this talk I will discuss a series of studies in which we used functional magnetic resonance imaging (fMRI) and computational modeling to investigate the neuro-computation

Fri, Jun 18, 2021 · 23:00 UTC

Seminar · Cognition