The processing of perceptual similarity with different features or spatial relations as revealed by P2/P300 amplitude

• Published in: International journal of psychophysiology Vol. 95; no. 3; pp. 379 - 387
• Main Authors: Chen, Qingfei, Liang, Xiuling, Li, Peng, Ye, Chun, Li, Fuhong, Lei, Yi, Li, Hong
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.03.2015
• Subjects: Brain Mapping; Difference judgment; Electroencephalography; ERPs; Event-Related Potentials, P300 - physiology; Female; Humans; Judgment - physiology; Male; P300; Pattern Recognition, Visual - physiology; Photic Stimulation; Reaction Time - physiology; Similarity judgment; Space Perception - physiology; Time Factors; Young Adult; Similarity judgment; ERPs; P2; P300; Difference judgment

Visual features such as “color” and spatial relations such as “above” or “beside” have complex effects on similarity and difference judgments. We examined the relative impact of features and spatial relations on similarity and difference judgments via ERPs in an S1–S2 paradigm. Subjects were require...