“…Second, communication and emotional difficulties present among individuals on the autism spectrum with or without an intellectual disability make identifying and expressing cognitive and emotional inner states more difficult. This includes expressing feelings of sadness, worthlessness, or suicidal thoughts (Matheis & Turygin, 2016; Mayes et al, 2011; Stewart et al, 2006). Third, individuals on the autism spectrum may experience specific MDD symptoms different to those reported by the general population, such as regressive behaviors, changes in autistic symptomatology, or increased irritability and aggressiveness (Chandrasekhar & Sikich, 2015; Ghaziuddin et al, 2002; Gotham et al, 2014; Perry et al, 2001; Stewart et al, 2006).…”