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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Neuropsychologia. 2012 Sep 27;50(14):3313–3319. doi: 10.1016/j.neuropsychologia.2012.09.038

Table 1.

(a) Mean age and IQ scores (verbal, performance, and full-scale) were not significantly different between control and autism groups. Standard deviations are given in the parentheses, (b) Means, standard deviations, and ranges for the autism group on clinical measures (ADOS = Autism Diagnostic Observation Schedule; ADI-R = Autism Diagnostic Interview - Revised; RSB = restricted and stereotyped behaviors).

Control Group (n = 19)* Autism Group (n = 15)* T-Test
Age 31.9 years (11.9) 30.5 years (11.5) t(32) = 0.36, p = 0.72
Verbal IQ 111.5 (10.9) 109.0 (16.8) t(28) = 0.49, p = 0.63
Performance IQ 107.2 (12.8) 104.9 (12.3) t(28) = 0.49, p = 0.63
Full Scale IQ 110.2 (10.2) 107.1 (11.7) t(28) = 0.78, p = 0.44
Mean (SD) Range
ADOS: Communication 3.7 (1.3) 2–6
ADOS: Social 7.7 (3.0) 5–14
ADOS: RSB 1.3 (1.3) 0–4
ADI-R A: Social 20.8 (5.0) 12–28
ADI-R B: Communication 15.8 (3.6) 10–22
ADI-R C: RSB 6.3 (2.9) 2–12
*

IQ scores were not available from 3 control participants and 1 ASD participant.

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    We examined whether perception of basic facial emotions is impaired in autism.

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    The autism group had overall reduced selectivity in ratings of emotional facial expressions.

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    In addition, there was reduced test-retest reliability in the autism group.

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    Subtle yet significant abnormality exists in adults with high-functioning autism.