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Behavioral performance of the landmark task in terms of reaction time and accuracy. Participants showed a slight leftward bias in the landmark condition (2.5, 5, 7.5% indicate the bias degree to the midpoint of the horizontal line), and no speed-accuracy trade-off was observed. The error bar represents a 95% confidence interval. *p < 0.05, **p < 0.01, ***p < 0.001.
