The purpose of this study is tTho establish test-retest reliability of electrodermal markers used to quantify physiologic response to sensation using the Sensory Challenge Protocol in children with and without Autism Spectrum Disorder (ASD).

This methodological research design is a prospective exploratory test-retest design assessing the use of electrodermal activity (EDA) as an index of sensory processing. EDA will be measured using skin conductance response (SCR). The purpose of this study is to investigate if using EDA is a reliable measure over time within the context of response to sensation. Scores from test one and test two of each subject will be correlated to determine reliability of EDA measure. Reliability in this context will establish the utility of EDA as an index of sensory processing. Testing will occur two times within a six week period.

Inclusion Criteria: Boys ages 4 - 11 years old.

• Able to sit for 30 minutes and follow simple directions.
• Children with confirmed Autism Spectrum Disorder via school records or parent report.
• Typically developing children free of medical or neurological conditions

Exclusion Criteria:

• Medical or neurological conditions other than Autism.
• Hearing loss or visual impairments.
• Children taking medications known to affect arousal.
• Children who are not able to follow simple commands.

A convenience sample of boys between the ages of 4 - 11 years with and without a diagnosis of Autism Spectrum Disorder were recruited from private and public New Jersey Schools, Barpak Occupational Therapy clinic, Bergenfield, New Jersey and Seton Hall University campus.