Estudio de la interacción entre procesos lingüísticos y emocionales en el cerebro humano
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2022
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26/05/2022
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Universidad Complutense de Madrid
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Abstract
La literatura científica de los últimos años ha investigado los efectos de las emociones sobre el lenguaje, no solo en el aspecto semántico de esta, sino además sobre los procesamientos sintácticos, supuestamente encapsulados y ajenos a cualquier modulación exterior, hasta hace poco. Un grupo de estos estudios ha tratado de determinar qué rol juega cada una las dimensiones emocionales (valencia y activación) en estos efectos. Los resultados hasta la fecha han sido muy heterogéneos, debido en parte al uso de diferentes diseños experimentales. Por ello, aún no se conoce con precisión en qué medida la valencia y la activación emocional son responsables de estas modulaciones. Esta tesis tiene como objetivo examinar los correlatos electrofisiológicos de los efectos que la valencia tiene en la comprensión del lenguaje, bajo un diseño experimental que iguala las condiciones positiva, negativa y neutra, con independencia de la activación, también estudiada. Para ello, se igualan los estímulos de las tres condiciones de valencia a una misma activación. Con el desarrollo de dos tareas (lectura de palabras emocionales vs. Stroop emocional)durante la presentación del estímulo se logran estudiar los efectos bajo niveles de activación diferentes, así como también diferente esfuerzo cognitivo y diferente carga memorística y grado de acceso al contenido semántico...
Current scientific literature has investigated the effects of emotions on language, not only in its semantic aspect, but also on syntactic processing, supposedly encapsulated and unrelated to any external modulation, until recently. Some ofthese studies have tried to establish the distinctive role of the emotional dimensions (valence and arousal) on these effects. The results to date have been very mixed, due in part to the use of different experimental designs. Therefore, it is not yet known precisely to what extent valence and emotional arousal are responsible for these modulations. This thesis aims to examine the electrophysiological correlates of valence dimension on language comprehension, under an experimental design that equates the positive, negative and neutral conditions, regardless of activation, also studied. For this, the stimuli of the three levels of valence are equated to the same activation. With the development of two tasks during the presentation of the stimulus (emotional words reading vs. emotional Stroop), it is possible to study the effects under different activation levels, as well as different cognitive effort and different memory load, and degree of access to semantic content...
Current scientific literature has investigated the effects of emotions on language, not only in its semantic aspect, but also on syntactic processing, supposedly encapsulated and unrelated to any external modulation, until recently. Some ofthese studies have tried to establish the distinctive role of the emotional dimensions (valence and arousal) on these effects. The results to date have been very mixed, due in part to the use of different experimental designs. Therefore, it is not yet known precisely to what extent valence and emotional arousal are responsible for these modulations. This thesis aims to examine the electrophysiological correlates of valence dimension on language comprehension, under an experimental design that equates the positive, negative and neutral conditions, regardless of activation, also studied. For this, the stimuli of the three levels of valence are equated to the same activation. With the development of two tasks during the presentation of the stimulus (emotional words reading vs. emotional Stroop), it is possible to study the effects under different activation levels, as well as different cognitive effort and different memory load, and degree of access to semantic content...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Psicología, leída el 26-05-2022