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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: Neurosci Biobehav Rev. 2018 Feb 20;87:106–117. doi: 10.1016/j.neubiorev.2018.01.008

Figure 2. Histogram of (A) all 67 experiments included in this meta-analysis and (B) 24 counterbalanced experiments.

Figure 2

Experiments are classified by average age and verbal intelligence standard score of ASD participants. Average or above-average verbal intelligence (“Average VIQ”) is defined by average standard scores of 90 or above. Below average verbal IQ (“Low VIQ”) is defined by average standard scores below 80. Samples that fall between average standard scores of 80 and 90, around the cutoff score for disability (85) are considered as “Combined Low and Average” VIQ samples. Experiments are also classified based on the auditory feature which is deviating (“Deviant Type”) and the nature of the stimuli (“Speech” or “Nonspeech”). The “Other” category includes experiments that deviated stimuli based on “emotional content” (e.g., cheerful, angry, commanding, or sad), gap, or location.