A patient diagnosed with schizophrenia has auditory hallucinations, delusions of grandeur, poor personal hygiene, and threatening behavior. Which assessment finding would the nurse regard as a negative symptom of schizophrenia?

Choice A reason: Auditory hallucinations are positive symptoms of schizophrenia, driven by mesolimbic dopamine excess, causing sensory perceptions without stimuli. They reflect hyperactive neural signaling, not the diminished motivation or functioning characteristic of negative symptoms, making this incorrect. Choice B reason: Threatening behavior is a positive symptom, reflecting dopamine-driven impulsivity and agitation in schizophrenia’s mesolimbic pathway. Negative symptoms involve deficits like apathy, not active behaviors, making this choice unrelated to negative symptom criteria. Choice C reason: Delusions of grandeur are positive symptoms, stemming from excessive dopamine in the mesolimbic system, causing exaggerated beliefs. Negative symptoms involve reduced emotional or behavioral expression, not active psychotic beliefs, making this choice incorrect. Choice D reason: Poor personal hygiene is a negative symptom of schizophrenia, reflecting reduced motivation and self-care due to prefrontal cortex dopamine hypofunction. This deficit in volition and functioning aligns with negative symptoms, distinguishing it from positive symptoms like hallucinations.