Publication details
Imaginace jídla a jeho konzumace : čím více na to myslíme, tím méně toho sníme
| Title in English | How imagination influences consummation: The more you think about it, the less you eat |
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| Authors | |
| Year of publication | 2019 |
| Type | Article in Periodical |
| Magazine / Source | E-psychologie |
| MU Faculty or unit | |
| Citation | |
| Web | článek - open access |
| Doi | http://dx.doi.org/10.29364/epsy.340 |
| Keywords | imagination; consumption; habituation; replication; priming; food |
| Attached files | |
| Description | Extended English abstract. Introduction. The study is a replication of an experiment that has supported a hypothesis that people imagining a consumption of food before its real consumption eat less food than without the prior imagination (first experiment from Morwedge et al., 2010). Method. The sample consisted of 77 Czech university students who were randomly assigned into three groups varying by amount of imagined objects being consumed (inserting 33 coins into machine and consuming 0 chocolate lentils / inserting 30 coins and consuming 3 lentils / inserting 0 coins and consuming 33 lentils). The design was almost the same as in the replicated study. Compared to the original study, the manipulation check was done and no compensation has been offered to the participants. Results. Only marginal and insignificant effect of imagined consumption on the consecutive real consumption has been found (ANOVA: F(2, 74) = 1,29, p = 0,281, omega-squared = 0,01). The control of satiety and the control of liking of chocolate lentils did not change the result significantly. Therefore, the analysis did not support the result of the original study. However, the analysis also did not have sufficient power to provide evidence against the effect. Conclusion. The effect found in the original study, as well as unsuccessful replication, might be caused by chance. Another replication with higher test power is necessary to be able to assess whether the effect of imagination on food consumption is real. |