Keywords: Medicine and Nursing ; Neurosciences ; schizophrenia ; ERP ; mismatch negativity ; MMN ; P3a ; illness duration ; real-life functioning ; motivation circuits ; negative symptoms ; RDoC ; positive valence system ; salience system ; deficit syndrome ; diagnosis ; cognitive function ; social skills training ; physical comorbidities ; childhood abuse ; internalized stigma ; neutrophil-to-lymphocyte ratio ; antipsychotics ; hypothyroidism ; inflammatory markers ; expressive deficits ; experiential deficits ; functioning ; quality of life ; first psychotic episode ; first episode ; emotional processing ; social cognition ; MCCB ; MSCEIT ; real-world studies ; real-world effectiveness ; tolerability ; treatment adherence ; second-generation antipsychotics ; long-acting injectable antipsychotics ; delusional disorders ; psychosis ; sex ; women ; psychopathology ; construct ; schizophrenia spectrum ; renaming ; rethinking ; revising ; effort expenditure ; recent-onset schizophrenia ; persistent negative symptoms ; motivation ; neuropeptide S ; cognitive functioning ; rehabilitation ; AEP ; QEEG ; switch ; extrapyramidal symptoms ; treatment ; cognitive deficits ; self-evaluation of negative symptoms ; health-related quality of life