Persona:
Montoro Martínez, Pedro Raúl

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ORCID
0000-0002-5665-8587
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Montoro Martínez
Nombre de pila
Pedro Raúl
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2023 - 20242
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Autor: Hinojosa, José Antonio × Tiene archivos: true ×

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Mostrando 1 - 2 de 2
  • Miniatura
    Publicación
    Consciousness Under the Spotlight: The Problem of Measuring Subjective Experience
    (Wiley, 2024-10-24) Jiménez. Mikel; Prieto Lara, Antonio; Hinojosa, José Antonio; Montoro Martínez, Pedro Raúl; Mohamad El Haj
    The study of consciousness is considered by many one of the most difficult contemporary scientific endeavors and confronts several methodological and theoretical challenges. A central issue that makes the study of consciousness so challenging is that, while the rest of science is concerned with problems that can be verified from a “third person” view (i.e., objectively), the study of consciousness deals with the phenomenon of subjective experience, only accessible from a “first person” view. In the present article, we review early (starting during the late 19th century) and later efforts on measuring consciousness and its absence, focusing on the two main approaches used by researchers within the field: objective (i.e., performance based) and subjective (i.e., report based) measures of awareness. In addition, we compare the advantages and disadvantages of both types of awareness measures, evaluate them according to different methodological considerations, and discuss, among other issues, the possibility of comparing them by transforming them to a common sensitivity measure (d′). Finally, we explore several new approaches—such as Bayesian models to support the absence of awareness or new machine-learning based decoding models—as well as future challenges—such as measuring the qualia, the qualitative contents of awareness—in consciousness research.
  • Miniatura
    Publicación
    Masked priming under the Bayesian microscope: Exploring the integration of local elements into global shape through Bayesian model comparison
    (Elsevier, 2023-10) Jiménez, Mikel; Prieto Lara, Antonio; Gómez, Pablo; Hinojosa, José Antonio; Montoro Martínez, Pedro Raúl
    To investigate whether local elements are grouped into global shapes in the absence of awareness, we introduced two different masked priming designs (e.g., the classic dissociation paradigm and a trial-wise probe and prime discrimination task) and collected both objective (i.e., performance based) and subjective (using the perceptual awareness scale [PAS]) awareness measures. Prime visibility was manipulated using three different prime-mask stimulus onset asynchronies (SOAs) and an unmasked condition. Our results showed that assessing prime visibility trial-wise heavily interfered with masked priming preventing any prime facilitation effect. The implementation of Bayesian regression models, which predict priming effects for participants whose awareness levels are at chance level, provided strong evidence in favor of the hypothesis that local elements group into global shape in the absence of awareness for SOAs longer than 50 ms, suggesting that prime-mask SOA is a crucial factor in the processing of the global shape without awareness.