• Diagnosis of Autism Spectrum Spectrum Disorder (ASD) based on clinical interview and Diagnostic and Statistical Manual, 5th edition (DSM-5) and confirmed using the Autism Diagnostic Interview Revised (ADI-R) and the Autism Diagnostic Observation Schedule (ADOS) and/or Brief Observation of Symptoms of Autism (BOSA) and/or Childhood Autism Rating Scale- Second Edition (CARS-2).

• Outpatients between 2.0 and 4.11 years of age of either gender,

• Children of all cognitive levels will be included as long as they are able to participate in the testing procedures to the extent that valid standard scores can be obtained

• Language delay as measured by the Preschool Language Scale, 5th Edition (PLS-5) \[at least 1 standard deviation behind for children age 2 and 3 years; and 2 standard deviations behind for children age 4\],

• Stable psychotropic medication(s) or biomedical intervention(s) for at least 1 month prior to baseline measurements with no anticipated changes during study participation,

• Stable treatment \[Applied Behavior Analysis (ABA), Floortime, or other interventions\], speech therapy, and school placement for at least 1 month prior to baseline measurements with no expected changes during study participation,

• No more than 60 minutes of 1:1 speech therapy per week,

• The child's exposure to the English language must be sufficient that administration of standardized tests in English is appropriate for measuring progress,

• The availability of at least one parent who can consistently participate in the training sessions and related activities, and

• Successful completion of baseline brain scan.