Abnormal auditory forward masking pattern in the brainstem response of individuals with Asperger syndrome

Figures & data

Figure 1 Graphical representation of the forward masking stimulus.

Table 1 Peak III amplitude (μV) of right side forward masking ABRs for subjects with Asperger syndrome and matched control groups

	Controls (n = 16)	ADHD (n = 16)	Schizophrenia (n = 16)	Asperger syndrome (n = 16)
Amplitude peak III (mean ± SD)	0.33 ± 0.16	0.39 ± 0.22	0.42 ± 0.28	0.17 ± 0.10
P value	<0.005	<0.005	<0.005	–

Abbreviations: SD, standard deviation; ABRs, auditory brainstem responses; ADHD, attention deficit hyperactivity disorder.

Figure 2 Averaged ABRs with forward masking stimulus for male subjects with Asperger syndrome (n = 5; soild line) and matched healthy controls (n = 5; dotted line).