TY - JOUR PY - 2010// TI - Fear generalization in humans: Impact of verbal instructions JO - Behaviour research and therapy A1 - Vervliet, Bram A1 - Kindt, Merel A1 - Vansteenwegen, Debora A1 - Hermans, Dirk SP - 38 EP - 43 VL - 48 IS - 1 N2 - Fear generalization lies at the heart of many anxiety problems, but little is known about the factors that can influence this phenomenon. The present study investigated whether verbal instructions about specific stimulus features can influence conditioned fear generalization. All participants were fear conditioned to a yellow triangle, using an electric shock. Participants had received pre-experimental instructions saying that the shapes (or colours) of the stimuli were informative for the occurrence of shock (group Shape and group Colour, respectively). Next, generalization was tested to presentations of a blue triangle (same shape) as well as a yellow square (same colour). Fear reactions were measured through skin conductance and online ratings of shock-expectancy. The results showed strongest generalization to the same shape stimulus in group Shape, versus the same colour stimulus in group Colour. Hence, the same learning experience can have opposite effects in terms of fear generalization, depending on verbally transmitted information about the relative importance of individual stimulus features.

Language: en

LA - en SN - 0005-7967 UR - http://dx.doi.org/10.1016/j.brat.2009.09.005 ID - ref1 ER -