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Relationship between preference and gaze in modified food using eye tracker.

Yuka Yasui1, Junko Tanaka1, Masaki Kakudo1

  • 1Department of Fixed Prosthodontics and Occlusion, Osaka Dental University, Osaka, Japan.

Journal of Prosthodontic Research
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PubMed
Summary
This summary is machine-generated.

Individuals gazed longer at foods they preferred. Higher preference correlated with increased gaze time and food intake, with regular food forms being most favored.

Keywords:
Eye trackingGaze pointModified foodPreference

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Area of Science:

  • Sensory Science
  • Food Science
  • Human-Computer Interaction

Background:

  • Understanding food preference is crucial for dietary interventions and food product development.
  • Eye-tracking technology offers objective insights into attention and preference.

Purpose of the Study:

  • To investigate the relationship between food preference and visual attention using eye-tracking.
  • To explore how different food forms (regular, chopped, blended) influence gaze and intake.

Main Methods:

  • 37 healthy volunteers participated in the study.
  • Participants viewed and consumed test foods (rice, salmon, squash) in various forms.
  • Eye-tracking measured gaze fixation count and duration before eating.

Main Results:

  • Higher food preference significantly correlated with increased gaze point fixations and duration.
  • Maximum food intake was associated with highly preferred food forms.
  • Regular food forms were most preferred among the tested forms.

Conclusions:

  • Visual attention, as measured by gaze behavior, is linked to food preference.
  • The findings suggest that people look more at foods they like, especially in their regular form.