objective: the present study aimed to clarify dissociative symptoms in patients with schizophrenia and its association with negative and positive symptom of schizophrenia. methods: based on the 4th edition of diagnostic and statistical manual of mental disorders (dsm-iv) criteria, 80 schizophrenic subjects were randomly selected from patients who referred to the clinics of psychiatry hospital i...

Hughlings Jackson の重要な考え方の 1 つである陰性症候と陽性症候について, 類似の用語との違いを含めて概説する。神経系は階層構造をもち, ある階層が障害されると, その層の機能は消失または減退し, それまでできていたことができなくなる (陰性症候) 。一方, 壊れた階層より下の階層の機能は上からの抑制が外れるために過剰に発現し, それまでみられなかった現象が生じる (陽性症候) 。このように脳損傷により陰性症候と陽性症候の両者が現れることを神経症候の二重性と呼ぶ。陰性症候と陽性症候を分けて考えること, その背後にある神経系の階層構造のダイナミックな変化を意識することは, 高次脳機能障害の複雑な症候を理解するのに役立つと考えられる。

background: knowledge is limited concerning the role of temperament and character factors on schizophrenia. recent studies suggest that dimensions of temperament and character influence symptoms and functions in schizophrenia.  the purpose of this study was to determine the relationship between temperament and character with positive and negative symptoms in patients with schizophrenia. methods...

Objective: This study aimed to investigate the role of negative and positive affectivity, selffocused attention, and attentional control in social anxiety symptoms.  Methods: A sample of 382 students of Isfahan University was selected and the participants completed Social Phobia Inventory (SPIN), Positive and Negative Affect Schedule (PANAS), Attentional Control Scale (ACS), and Focus...