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Fig. 3 | BMC Psychology

Fig. 3

From: Enhanced early visual processing in response to snake and trypophobic stimuli

Fig. 3

a The early posterior negativity (EPN) in response to snake (red line), trypophobic (blue line), poisonous animal (green line) and bird pictures (black line) across the five occipital electrodes (O1/2, Oz, PO3/4). The depicted waveform for each condition is the grand average of 24 participants with approximately 450 epochs per participant. Negativity is up. b Topographic maps of the differences in EPN mean amplitudes (225–300 ms) between snake vs. bird pictures (left), trypophobic vs. bird pictures (middle), and poisonous animal vs. bird pictures (right)

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