Artículo
Startle response and prepulse inhibition modulation by positive- and negative-induced affect
Autor/es | Casa Rivas, Luis Gonzalo de La
Mena, Auxiliadora Puentes, Andrea |
Departamento | Universidad de Sevilla. Departamento de Psicología Experimental |
Fecha de publicación | 2014 |
Fecha de depósito | 2017-02-27 |
Publicado en |
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Resumen | The startle response, a set of reflex behaviours intended to prepare the organism to face a potentially threatening
stimulus, can be modulated by several factors as, for example, changes in affective state, or previous ... The startle response, a set of reflex behaviours intended to prepare the organism to face a potentially threatening stimulus, can be modulated by several factors as, for example, changes in affective state, or previous presentation of a weak stimulus (a phenomenon termed Pre-Pulse Inhibition [PPI]). In this paper we analyse whether the induction of positive or negative affective states in the participants modulates the startle response and the PPI phenomenon. The results revealed a decrease of the startle response and an increase of the PPI effect when registered while the participants were exposed to pleasant images (Experiment 1), and an increase of the startle response and of the PPI effect when they were exposed to a video-clip of unpleasant content (Experiment 2). These data are interpreted considering that changes in affective states correlate with changes in the startle reflex intensity, but changes in PPI might be the result of an attentional process |
Agencias financiadoras | Ministerio de Economía y Competitividad (MINECO). España Junta de Andalucía |
Identificador del proyecto | info:eu-repo/grantAgreement/MINECO/PSI2012-32077
SEJ-02618 |
Cita | Casa Rivas, L.G.d.L., Mena, A. y Puentes, A. (2014). Startle response and prepulse inhibition modulation by positive- and negative-induced affect. International Journal of Psychophysiology, 91 (2), 73-79. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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startle response postprint.pdf | 248.5Kb | [PDF] | Ver/ | |