Resum
Few studies have investigated the role of the BDNF-val66met polymorphism in fear conditioning in humans, and previous results have been inconsistent. In the present study, we examined whether the BDNF-val66met was associated with differences in the acquisition and generalization of fear during a differential conditioning paradigm in a large sample of participants (N=141). Using three different indexes of fear learning (fear-potentiated startle, skin conductance response, and online risk ratings) no effects of the BDNF-val66met were found either on the acquisition or the generalization of conditioned fear. Taken together with previous data, our study suggests that the BDNF-val66met polymorphism has no effect on the acquisition or generalization of fear. © 2012 Society for Psychophysiological Research.
Idioma original | Anglès |
---|---|
Pàgines (de-a) | 713-719 |
Revista | Psychophysiology |
Volum | 49 |
DOIs | |
Estat de la publicació | Publicada - 1 de gen. 2012 |