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Pediatric schizophrenia (also known as childhood schizophrenia, childhood-onset schizophrenia, and early-onset schizophrenia) is a type of mental disorder that is characterized by degeneration of thinking, motor, and emotional processes, with onset before age 18 (early onset) or before age 13 (very early onset).〔 〕〔 The disease presents symptoms such as auditory and visual hallucinations, strange thoughts or feelings, and abnormal behavior, profoundly impacting the childs ability to function and sustain normal interpersonal relationships. It typically presents after the age of seven.〔 About 50% of young children diagnosed with schizophrenia experience severe neuropsychiatric symptoms. Diagnostic criteria are similar to those of adult schizophrenia. Diagnosis is based on behavior observed by caretakers and, in some cases depending on age, self reports. Schizophrenia has no definite cause; however, certain risk factors such as family history seem to correlate. There is no known cure, but childhood schizophrenia is controllable with the help of behavioral therapies and medications. ==Signs and symptoms== (詳細はlanguage and motor development. Some children engage in activities such as flapping the arms or rocking, and may appear anxious, confused, or disruptive on a regular basis. Children may experience symptoms such as hallucinations, but these are often difficult to differentiate from just normal imagination or child play. It is often difficult for children to describe their hallucinations or delusions, making early-onset schizophrenia especially difficult to diagnose in the earliest stages. The cognitive abilities of children with schizophrenia may also often be lacking, with 20% of patients showing borderline or full intellectual disability. Very early-onset schizophrenia refers to onset before the age of thirteen. The prodromal phase, which precedes psychotic symptoms, is characterized by deterioration in school performance, social withdrawal, disorganized or unusual behavior, a decreased ability to perform daily activities, a deterioration in self-care skills, bizarre hygiene and eating behaviors, changes in affect, a lack of impulse control, hostility and aggression, and lethargy.〔 Auditory hallucinations are the most common positive symptom in children. A child's auditory hallucinations may include voices that are conversing with each other or voices that are speaking directly to the children themselves. Many children with auditory hallucinations believe that if they do not listen to the voices, the voices will harm them or someone else. Tactile and visual hallucinations seem relatively rare. Delusions are reported in more than half of children with schizophrenia, but they are usually less complex than those of adults. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pediatric schizophrenia」の詳細全文を読む スポンサード リンク
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