Table 1.

Summary of auditory processing abnormalities in humans with FXS determined using auditory ERP.

ERP component	Changes in FXS patients	Reference
N1	Enhanced peak amplitudes, reduced hemispheric asymmetry, reduced habituation	Rojas et al. (2001), Castren et al. (2003), Van der Molen et al. (2012a,b), Schneider et al. (2013)
P2	Enhanced peak amplitude	Van der Molen et al. (2012b)
MMN	Reduced peak amplitude	Van der Molen et al. (2012b)
N2	Enhanced peak amplitude, reduced sensitization, longer latencies	Castren et al. (2003), Van der Molen et al. (2012a,b)
P3	Reduced peak amplitude, longer latencies, abnormal waveform shape	Van der Molen et al. (2012a,b), St. Clair et al. (1987)