When feeling is for seeing: comparing the effects of motivated perception between fear and anger on ambiguous threatening stimuli.

We do not see the world as it is: distortions of visual perception can occur depending on the goals we wish to achieve ("wishful seeing"). Following functionalist theories of emotions (e.g., "feeling is for doing"), visual perception biases could also be involved in the link between emotion and specific behavior. Previous research has shown that anger can modify visual perception towards ambiguous menacing stimuli, or that fear can similarly direct our attention and perception towards threatening stimuli (e.g., weapons). The aim of our research was to replicate these effects by directly comparing the effects of these two emotions on perceptual biases and by relying on general mixed models to control Type I errors and reduce the risk related to the non-independence between observations. Our results partially replicate a perceptual bias toward threatening objects for both emotions although this effect depends on the type of stimulus and of the emotional dimension involved. These results are discussed in terms of the impact of emotions in attentional and perceptual processes and in relation to alternative theoretical explanations for motivated perception.