What is autism? -- The autism spectrum (AS) : where we are to date -- Consideration of cognitive theories of autism spectrum -- Cognitive theory : theory of mind (ToM) -- Cognitive theory : executive functioning (EF) and autism spectrum -- Cognitive theory : weak central coherence (WCC) and autism spectrum -- Cognitive theory : enhanced perceptual functioning and autism (EPF) -- The cognitive theory of single attention and associated cognition in autism (SAACA) -- Relavency of SAACA