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Author: search.filters.author.Jérôme SackurSubject: search.filters.subject.metacognition

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    Hydrocortisone decreases metacognitive efficiency independent of perceived stress
    (2020)
    REYES MUÑOZ, GABRIEL EDUARDO  
    ;
    VIVANCO CARLEVARI, ANASTASSIA BELEN  
    ;
    Franco Medina
    ;
    Carolina Manosalva
    ;
    Vincent de Gardelle
    <jats:title>Abstract</jats:title><jats:p>It is well established that acute stress produces negative effects on high level cognitive functions. However, these effects could be due to the physiological components of the stress response (among which cortisol secretion is prominent), to its psychological concomitants (the thoughts generated by the stressor) or to any combination of those. Our study shows for the first time that the typical cortisol response to stress is sufficient to impair metacognition, that is the ability to monitor one’s own performance in a task. In a pharmacological protocol, we administered either 20 mg hydrocortisone or placebo to 46 male participants, and measured their subjective perception of stress, their performance in a perceptual task, and their metacognitive ability. We found that hydrocortisone selectively impaired metacognitive ability, without affecting task performance or creating a subjective state of stress. In other words, the single physiological response of stress produces a net effect on metacognition. These results inform our basic understanding of the physiological bases of metacognition. They are also relevant for applied or clinical research about situations involving stress, anxiety, depression, or simply cortisol use.</jats:p>
      1  2Scopus© Citations 14
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    Metacognitive improvement: Disentangling adaptive training from experimental confounds.
    (2022)
    Martin Rouy
    ;
    Vincent de Gardelle
    ;
    REYES MUÑOZ, GABRIEL EDUARDO  
    ;
    Jérôme Sackur
    ;
    Jean Christophe Vergnaud
      1Scopus© Citations 17  3
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    The Confidence Database
    (2020)
    Dobromir Rahnev
    ;
    Kobe Desender
    ;
    Alan L. F. Lee
    ;
    William T. Adler
    ;
    David Aguilar-Lleyda
      11Scopus© Citations 91
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    Meditation focused on self-observation of the body impairs metacognitive efficiency
    (2019)
    Carlos Schmidt
    ;
    REYES MUÑOZ, GABRIEL EDUARDO  
    ;
    Mauricio Barrientos
    ;
    Álvaro I. Langer
    ;
    Jérôme Sackur
    Scopus© Citations 15  1
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      27  1Scopus© Citations 8
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    Introspection during short-term memory scanning
    (2018)
    REYES MUÑOZ, GABRIEL EDUARDO  
    ;
    Jérôme Sackur
    <jats:p> The literature in metacognition has argued for many years that introspective access to our own mental content is restricted to the cognitive states associated with the response to a task, such as the level of confidence in a decision or the estimation of the response time; however, the cognitive processes that underlie such states were deemed inaccessible to participants’ consciousness. Here, we ask whether participants could introspectively distinguish the cognitive processes that underlie two short-term memory tasks. For this purpose, we asked participants, on a trial-by-trial basis, to report the number of items that they mentally scanned during their short-term memory retrieval, which we have named “subjective number of scanned items.” The subjective number of scanned items index was evaluated, in Experiment 1, immediately after a judgment of recency task and, in Experiment 2, after an item recognition task. Finally, in Experiment 3, both tasks were randomly mixed. The results showed that participants’ introspection successfully accessed the complexity of the decisional processes. </jats:p>
      1Scopus© Citations 9  1