Fig 1.
Identity task whole figure upright (WFU) pair and headless inverted (HLI) pair along with interest areas (IAs) surrounding the heads, bodies, and feet.
Fig 2.
Posture task whole figure upright (WFU) pair and headless inverted (HLI) pair along with interest areas (IAs) surrounding the heads, bodies, and feet.
Fig 3.
Design difference between the intermixed and blocked groups.
The presentation order of identity and posture tasks was counterbalanced across participants.
Fig 4.
Intermixed group’s box and violin plots of efficiency scores for the four conditions: Whole figure upright (WFU), whole figure inverted (WFI), headless upright (HLU), headless inverted (HLI) in the identity task and posture task; dots denote means; *** = p < .001; ** = p < .01; * = p < .05.
Table 1.
Behavioural results: Main effects and interactions.
Fig 5.
Blocked group’s box and violin plots of efficiency scores for the four conditions: Whole figure upright (WFU), whole figure inverted (WFI), headless upright (HLU), headless inverted (HLI) in the identity task and posture task; dots denote means; *** = p < .001; ** = p < .01.
Fig 6.
Intermixed and blocked groups’ box and violin plots of dwell time (DT) proportions (square-root transformed) to the heads in the whole figure upright and whole figure inverted conditions in the identity and posture tasks; dots denote means; *** = p < .001.
Table 2.
Head IAs dwell time proportion comparisons.
Table 3.
Body IAs dwell time proportion comparisons.
Fig 7.
Intermixed and blocked groups’ box and violin plots of dwell time (DT) proportions (outliers removed) to the bodies in the whole figure upright (WFU), whole figure inverted (WFI), headless upright (HLU), and the headless inverted (HLI) conditions in the identity and posture tasks; dots denote means; *** = p < .001; ** = p < .01.
Fig 8.
Intermixed and blocked groups’ box and violin plots of dwell time (DT) proportions to the feet in the whole figure upright (WFU), whole figure inverted (WFI), headless upright (HLU), and the headless inverted (HLI) conditions in the identity and posture tasks; dots denote means; *** = p < .001; ** = p < .01.
Table 4.
Feet IAs dwell time proportion comparisons.
Table 5.
Spearman’s ρ correlations between efficiency scores and proportional dwell time to heads, bodies, and feet.