McIntosh et. al (2007) assessed electrodermal responses in 19 children with sensory-modulation disruptions and 19 typically developing control children. 4 members in the SMD group did not have electrodermal responses to sensory stimuli. Excluding the 4 non-responders in the SMD group and their matched controls, the researchers found that the children in the SMD group showed more electrodermal responses and responses higher in magnitude than the control children. Something important to note about this study is that children with autism were excluded from the study.