Search Strategy

An electronic search was conducted using PubMed and PsycINFO. The following relevant keywords were used as search terms: (“first episode psychosis” OR “first episode schizophrenia” OR “recent onset psychosis” OR “recent onset schizophrenia” OR “early psychosis” OR “early schizophrenia”) AND (“cognition” OR “neurocog*” OR “neuropsych*” OR “cognitive function” OR “IQ” OR “memory” OR “attention” OR “executive function” OR “reasoning” OR “problem-solving” OR “learning” OR “verbal fluency” OR “processing speed” OR “social cog*” OR “emotion perception” OR “affect perception” OR “emotion recognition” OR “Theory of Mind” OR “ToM” OR “mentalising” OR “social knowledge” OR “social perception” OR “social judgment”) AND (“social function*” OR “social outcome*” OR “global function*” OR “global outcome*” OR “community function*” OR “community outcome*” OR “occupational function*” OR “occupational outcome*” OR “work function*” OR “work outcome*” OR “vocational function*” OR “vocational outcome*” OR “recovery” OR “quality of life” OR “employment” OR “global assessment of function” OR “social and occupational functioning assessment scale” OR “functioning scale” OR “disability”). The keywords were searched in titles, abstracts, and indexed terms. Searches were limited to original articles written in English and published in peer-reviewed journals from January 2000 to March 2020. Additional articles were identified by hand-searching the references of retrieved articles and reviews.