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Unraveling the neural foundations of perceptual decision making in the schizophrenia spectrum

Caracterización de los fundamentos neuronales de la toma de decisiones perceptuales en el espectro de la esquizofrenia
Authors: Soler Pons, Carina;

Unraveling the neural foundations of perceptual decision making in the schizophrenia spectrum

Abstract

[ES] La percepción visual puede interpretarse como un problema de inferencia estadística, cuya resolución conduce a la adquisición de la versión más probable de la realidad perceptual. Por lo tanto, es posible referirse a esta función como una forma perceptual de toma de decisiones. El objetivo de este trabajo es estudiar la relación entre la electrofisiología características del cerebro, especialmente el papel del ritmo theta, y las peculiaridades del estilo cognitivo de individuos con diferentes grados de rasgos de esquizofrenia. Para ello, se realiza a un grupo de participantes una tarea de detección perceptiva, construida según la teoría de detección de señales (SDT), y se analiza su respuesta a través de los datos registrados en su electroencefalograma (EEG). Específicamente, el estímulo está precedido por información sobre su probabilidad real de aparición para notar el efecto diferente de las expectativas apriorísticas en la toma de decisiones perceptivas. Los resultados preliminares muestran una cierta correlación entre esta información y los cambios en la sensibilidad y el criterio de las respuestas, particularmente en los participantes con rasgos SPQ, en los que también hay una modulación del ritmo theta dependiente de la expectativa.

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Keywords

EEG., Perceptual Decision-making, Modelo de codificación predictiva, Schizophrenic Spectrum Disorder (SSD), Theta, Inferencia perceptiva, TECNOLOGIA ELECTRONICA, Teoría de detección de señales (SDT), Toma de decisiones perceptual, Predictive Coding Model, Signal Detection Theory (SDT), Grado en Ingeniería Biomédica-Grau en Enginyeria Biomèdica, Trastorno del espectro esquizofrénico (SSD), Perceptual Inference

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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