Figure 1

Behavioral and EEG/event-related brain potential (ERP) results.

(a) Thresholds of single participants (black diamond = congenital cataract group, cc; gray dots = developmental cataract group, dc; white triangles = matched controls, mc) in the behavioral biological motion (BM) detection task²²; higher values indicate higher sensitivity. The three groups did not differ in detecting BM. (b) Hit rates in the EEG biological motion task are separately shown for all groups. The three groups did not differ in their ability to detect the visual targets. (c) Relative power change of the evoked theta response (4–7 Hz; averaged across posterior electrodes, TP8/9, P7/8 and O1/2). Data are shown separately for each group (cc, dc, mc) and condition (BM and scrambled biological motion, SBM). Evoked theta activity was higher for BM than for SBM in all three groups; in addition, the mc group showed higher evoked theta response compared to both dc and cc groups. (d) Mean amplitudes of the N1 wave of the event-related potentials elicited by BM and SBM stimuli, displayed separately for the cc, dc and mc groups. The N1 was enhanced to biological compared to scrambled biological motion stimuli irrespectively of group (data of cc and mc groups from²⁰). *indicates significant condition and/or group effects.