What Does it Take for Sour Grapes to Remain Sour? Persistent Effects of Behavioral Inhibition in Go/No-Go Tasks on the Evaluation of Appetitive Stimuli
Recent studies have provided contradictory results on whether the pairing of appetitive stimuli with no-go responses in go/no-go tasks leads to a devaluation of these stimuli. The authors of the present studies argue that devaluation effects after pairings of appetitive stimuli (e.g., unhealthy snacks or fruit) with no-go responses are usually short-lived but can become persistent if the stimuli form a meaningful category of appetitive stimuli that one should usually avoid (e.g., unhealthy snacks). In three studies, the authors found no persistent devaluation effects for appetitive stimuli that were paired with no-go responses when the pairings conveyed no meaning beyond the completion of the go/no-go task (e.g., pairing of no-go responses with fruit or pairing of no-go responses with a mixture of healthy and unhealthy stimuli). However, persistent devaluation effects after a delay of 10 min were found when no-go responses were consistently paired with unhealthy snacks contrasted against fruit.