What negative symptom is characterized by lack of emotions in schizophrenia?

Flat affect is a negative symptom of schizophrenia that is characterized by a significant reduction in emotional expression. This can manifest as an inability to exhibit appropriate facial expressions, gestures, or emotional tones in speech. Individuals exhibiting flat affect may appear emotionally detached and may not display the typical range of feelings one would expect in social situations.

In contrast, the other symptoms listed do not directly pertain to the emotional blunting typically seen with flat affect. Catatonia refers to motor disturbances and may involve a lack of movement or response. Strange behaviors encompass a wide range of unusual actions that do not specifically indicate a lack of emotions. Grossly disorganized behavior involves significant disarray in one’s actions and thoughts, often resulting in unpredictable or inappropriate behavior rather than specifically addressing emotional expression. Thus, flat affect distinctly captures the essence of diminished emotional responsiveness seen in schizophrenia.