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How highlighted utensils influence consumption in a dark setting.

F Marijn Stok^1,2, Astrid F Junghans³, Denise T D de Ridder³

¹a Department of Psychology , Universität Konstanz , Konstanz , Germany.

Psychology & Health

|August 29, 2018

Summary

Eating in the dark reduces food consumption, not just due to internal cues but also because of increased maneuvering difficulty. Utensil highlighting can mitigate this effect.

Keywords:

Eating in the dark affordances body environment interaction consumption eating behaviour embodied cognition

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Area of Science:

Psychology
Human-Computer Interaction
Food Science

Background:

Previous research indicates reduced food consumption in dark environments compared to normal lighting.
This phenomenon is often attributed to heightened attention to internal physiological cues.
An alternative explanation suggests increased difficulty in maneuvering within a dark setting.

Purpose of the Study:

To investigate whether increased difficulty of maneuvering in the dark contributes to reduced food consumption.
To examine the interplay between lighting conditions and utensil visibility on eating behavior.

Main Methods:

A between-subjects design with two factors: lighting (dark vs. normal vision) and utensil highlighting (highlighted vs. non-highlighted).
Participants consumed yogurt under different conditions.
Perceived difficulty of maneuvering and yogurt consumption were measured.

Main Results:

Participants consumed slightly less yogurt in the dark and reported greater difficulty maneuvering.
A significant interaction revealed that highlighting utensils increased consumption and decreased perceived difficulty.
Maneuvering difficulty did not mediate the combined effect of lighting and highlighting on consumption.

Conclusions:

Maneuvering difficulty is a crucial factor to consider in studies of eating behavior in low-light conditions.
Visual information is essential for object interaction, supporting embodied cognition theories.
Even limited visual detail of objects may suffice to engage the motor system during eating.