FOOD STIMULI AND GENDER

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4.2 Eye-tracking Data
Four eye-tracking parameters were investigated for each food group: total visit
duration (TVD), visit count (VC), total fixation duration (TFD), and fixation count (FC).

4.2.1 Analysis of High and Low-Calorie Groups
For a comparison of gender differences in relation to calorie density, as stated in
hypotheses 1 and 2, the food stimuli presented in this study were divided into high- and lowcalorie groups (see Chapter 2.3). Furthermore, average indices were calculated; each of the
two food groups and the four eye-tracking variables values (TVD, VC, TFD, and FC) were
averaged. A total of eight indices resulted for each combination of the food groups and eye
tracking (ET) variables. The descriptive statistics for each of the indices were calculated
separately for men and women (mean, standard deviation, minimum, and maximum).
In the low-calorie food group, women had a significantly higher mean value (p <
0.05) than men for the ET variables TVD, TFD, and FC. In the high-calorie food group, men
had a significantly higher mean value (p < 0.05) for all of the ET variables. Boxplots of all
parameters are presented in Figure 7. In these boxplots, a gender-specific gaze bias can be
appreciated for all ET variables except for VC in the low-calorie food group.