2. Single image test with variables of viewing duration (A), frequency (B), and latency (C). Snake-control comparison with variables of viewing duration (D), frequency (E), and latency (F). Four image comparison with variables of viewing duration (G), frequency (H), and latency (I).

All variables were subjected to square root transformation and represented as means±SEM. SQRT: Square root transformation, ^*: P<0.05, ^**: P<0.01.