Frustración: Áreas cerebrales implicadas en la emoción negativa tras devaluación de recompensa.
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2022-12-14
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(ES) El presente Trabajo de Fin de Grado tuvo como objetivo analizar el efecto de contraste
sucesivo consumatorio (CSNc) y sus bases biológicas, a través del análisis de la expresión del
marcador de actividad neuronal c-Fos. El CSNc se asocia con emoción negativa y frustración.
En el estudio con los siguientes grupos experimentales (32%-32%, 32%-2%, 2%-2%), todos los
grupos tuvieron acceso 5 minutos al día, durante 10 días, a una solución de sacarosa con una
concentración establecida para cada grupo; en la segunda fase se devaluó la concentración de
sacarosa al grupo 32%-2% durante una sesión, Se esperaba que el grupo 32%-2% disminuyera
su consumo de sacarosa y existieran cambios en la expresión de c-Fos en regiones cerebrales
como el núcleo de la Amígdala central, la corteza Cingulada anterior y el núcleo Accumbens.
Los resultados confirmaron el deterioro comportamental. Se inició asimismo el análisis
histológico de las muestras cerebrales
(EN) The objective of this Final Degree Project was to analyze the effect of successive consummatory contrast (CSNc) and its biological bases, through the analysis of the expression of the neuronal activity marker c-Fos. The CSNc is associated with negative emotion and frustration. In the study with the following experimental groups (32%-32%, 32%-2%, 2%-2%), all groups had access 5 minutes a day, for 10 days, to a sucrose solution with a concentration established for each group; In the second phase, the sucrose concentration was devalued in the 32%-2% group during one session. It was expected that the 32%-2% group would decrease their sucrose consumption and there would be changes in the expression of c-Fos in brain regions such as the central amygdala nucleus, the anterior cingulate cortex, and the nucleus accumbens. The results confirmed the behavioral deterioration. It began with the histological analysis of brain samples
(EN) The objective of this Final Degree Project was to analyze the effect of successive consummatory contrast (CSNc) and its biological bases, through the analysis of the expression of the neuronal activity marker c-Fos. The CSNc is associated with negative emotion and frustration. In the study with the following experimental groups (32%-32%, 32%-2%, 2%-2%), all groups had access 5 minutes a day, for 10 days, to a sucrose solution with a concentration established for each group; In the second phase, the sucrose concentration was devalued in the 32%-2% group during one session. It was expected that the 32%-2% group would decrease their sucrose consumption and there would be changes in the expression of c-Fos in brain regions such as the central amygdala nucleus, the anterior cingulate cortex, and the nucleus accumbens. The results confirmed the behavioral deterioration. It began with the histological analysis of brain samples