Rosalie’s research focuses on the cognitive processes underlying food acceptance in young children, with a focus on sensory perception and decision-making. She examines the causality of the relations by influencing the cognitive processes through experimental manipulations and testing the change in food acceptance. In a first study, she investigated the effect of choice on young children’s acceptance of an unfamiliar vegetable. Using a blind choice paradigm, she observed that when children were given the autonomy to select from three cups, revealing the vegetable themselves, their acceptance of the vegetable was significantly higher compared to children with no choice. Additionally, in a recently completed study, Rosalie examined whether exposing children to challenging textures through sensory play could enhance their acceptance of foods with a similar texture. Notably, children who are more sensitive to tactile perception, appear to be pickier in eating.

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