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(A) a pair of target and foil stimuli and the visualisation of their GIST descriptor; (B) the distribution of the 512 GIST descriptor values for each image; (C) The mean score of target-foil image similarity for the four conditions, based on the GIST algorithmic verification. On the scale of the y-axis (0–1), a higher value represents greater visual similarity between targets and foils. Error bar: 1 SEM.
