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Influence of individual differences in Behavioral Inhibition System on the magnitude and time course of the fear-potentiated startle |
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| Authors: | Miquel-Angel Fullana Xavier Caseras Jordi Riba Manel Barbanoj Rafael Torrubia |
| Affiliation: | aDepartament de Psiquiatria i de Medicina Legal, Universitat Autònoma de Barcelona, Catalonia, Spain bInstitut de Neurociències, Universitat Autònoma de Barcelona, Catalonia, Spain cCentre d'Investigació de Medicaments, Institut de Recerca, Hospital de la Santa Creu i Sant Pau, Departament de Farmacologia i Terapèutica, Universitat Autònoma de Barcelona, Catalonia, Spain |
| Abstract: | Previous research has shown that the startle reflex is potentiated during experimentally induced anxiety (fear-potentiated startle). In the present study, the magnitude and time course of the startle blink reflex were examined among 35 undergraduates scoring one standard deviation above (n = 14) or below (n = 21) the mean in a self-report measure of sensitivity to punishment (SP) in a paradigm involving the anticipation of electric shocks. Contrary to our predictions, SP did not relate to differences in the magnitude or in the time course of fear-potentiated startle. Our data do not support an association between this individual differences variable and the fear-potentiated startle. |
| Keywords: | Startle reflex Personality Fear BIS |
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