陰いん性せい症しょう状じょう

noun

negative symptom

Medical term, especially in psychiatry, for symptoms that reflect a loss or decrease of normal functions (e.g., flat affect, social withdrawal, poverty of speech). Often contrasted with 陽性症状 (positive symptoms).

• 統とう合ごう失しっ調ちょう症しょうの陰いん性せい症しょう状じょうには、感かん情じょうの平へい板ばん化かや意い欲よくの低てい下かが含ふくまれる。

  Negative symptoms of schizophrenia include flat affect and decreased motivation.