Schizophrenia is characterized not only by a number of clinical symptom but also by board cognitive impairment deficiency in a few elementary functions may underlie impairment in various neuropsychologic domains as well as impede daily-life functioning is woking memory according to baddeley’s model working memory is in charge of the simultaneous manipulation and storage of the information the central executive component of working memory which involves attentional and inhibitory processes enable the manipulation of the information working memory is trus distinct from short-term