Abstract：
:Why do we indulge in food-seeking and eating behaviors at times when we are already fully sated? In the present study we investigated the hypothesis that food-associated cues in the environment can interfere with goal-directed action by eliciting food-seeking that is independent of the current desirability of the outcome. To this end, we used a computerized task in which participants learned to press keys for chocolate and popcorn rewards. Subsequently, we investigated whether satiation on one of these rewards would bias choice toward the other, still desirable, food reward. We found that satiation did indeed selectively reduce responding on the associated key in the absence of food-associated cues. In contrast, in a Pavlovian-instrumental transfer (PIT) test, satiation failed to reduce cue-elicited food-seeking: in line with our hypothesis, cues that had previously been paired with chocolate and popcorn led to increased responding for the signaled food reward, independent of satiation. Furthermore, we show that food-associated cues will not only bias choice toward the signaled food (outcome-specific transfer), but also enhance the vigor of responding generally (general transfer). These findings point to a mechanism that may underlie the powerful control that cues in our obesogenic environment exert over our behavior.
journal_name
Appetitejournal_title
Appetiteauthors
Watson P,Wiers RW,Hommel B,de Wit Sdoi
10.1016/j.appet.2014.04.005subject
Has Abstractpub_date
2014-08-01 00:00:00pages
139-48eissn
0195-6663issn
1095-8304pii
S0195-6663(14)00170-6journal_volume
79pub_type
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