Which of the following is considered a negative symptom of schizophrenia?

Poverty of speech, also known as alogia, is recognized as a negative symptom of schizophrenia. Negative symptoms refer to deficits or reductions in normal emotional and behavioral functioning. They can impact a person's ability to express themselves and engage socially.

In the case of poverty of speech, individuals may exhibit a lack of verbal communication that reflects their thoughts and emotions, which can significantly hamper their social interactions and relationships. This symptom highlights a decrease in the ability to convey ideas and can manifest as short, terse responses to questions, indicating a reduction in expressive capacity.

Other options, such as delusions, disorganized speech, and hallucinations, fall under positive symptoms of schizophrenia. Positive symptoms are characterized by the presence of abnormal thoughts or behaviors, including distortions in perception or reality. Delusions involve false beliefs, disorganized speech refers to incoherent or nonsensical speech patterns, and hallucinations involve perceiving things that are not actually present, such as hearing voices. Each of these reflects an excess or distortion of normal functions rather than a reduction, which distinguishes them clearly from negative symptoms like poverty of speech.