Abstract

Vicarious learning has become an established indirect pathway to fear acquisition. It is generally accepted that associative learning processes underlie vicarious learning; however, whether this association is a form of conditioned stimulus-unconditioned stimulus (CS-US) learning or stimulus–response (CS-CR) learning remains unclear. Traditionally, these types of learning can be dissociated in a US revaluation procedure. The current study explored the effects of post-vicarious learning US revaluation on acquired fear responses. Ninety-four children (46 males and 48 females) aged 6 to 10 years first viewed either a fear vicarious learning video or a neutral vicarious learning video followed by random allocation to one of three US revaluation conditions: inflation; deflation; or control. Inflation group children were presented with still images of the adults in the video and told that the accompanying sound and image of a very fast heart rate monitor belonged to the adult. The deflation group were shown the same images but with the sound and image of a normal heart rate. The control group received no US revaluation. Results indicated that inflating how scared the models appeared to be did not result in significant increases in children’s fear beliefs, avoidance preferences, avoidance behavior or heart rate for animals above increases caused by vicarious learning. In contrast, US devaluation resulted in significant decreases in fear beliefs and avoidance preferences. Thus, the findings provide evidence that CS-US associations underpin vicarious learning and suggest that US devaluation may be a successful method for preventing children from developing fear beliefs following a traumatic vicarious learning episode with a stimulus.

Highlights

  • Vicarious learning has become an established indirect pathway to fear acquisition

  • There are essentially two possibilities for what associations are formed during vicarious learning: stimulus–response (S-R or CS-CR) learning, in which a conditioned stimulus (CS; e.g., an animal) is associated with an individual’s fear-related conditioned response (CR) to the stimulus; or stimulus-stimulus (CS-US) learning, in which a CS evokes a fear-related response via its association with an unconditioned stimulus (US)

  • The current study explored the effects of US revaluation on fear responses following vicarious learning

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Summary

Introduction

Vicarious learning has become an established indirect pathway to fear acquisition. It is generally accepted that associative learning processes underlie vicarious learning; whether this association is a form of conditioned stimulusunconditioned stimulus (CS-US) learning or stimulus–response (CS-CR) learning remains unclear. Since Rachman’s (1977) original suggestion that fear of an animal, object or situation can be acquired by observing another individual’s fear of it, vicarious learning has become established as an indirect pathway to fear acquisition Evidence of this in children comes from direct experimental investigations showing that vicarious learning can influence fear beliefs (e.g., Askew et al 2008, 2013; Askew and Field 2007; Dunne and Askew 2013), behavioral preferences and avoidance (e.g., Askew et al 2013; Askew and Field 2007; De Rosnay et al 2006; Dubi et al 2008; Dunne and Askew 2013; Egliston and Rapee 2007; Gerull and Rapee 2002), heart rate and attentional bias (e.g., Reynolds et al 2014). If CS-CR associations underpin vicarious learning, the child would associate their own fearful response with the animal

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