Which brain region is involved in emotion and aggression?

• A. Hippocampus
• B. Amygdala
• C. Medulla
• D. Thalamus

Answer: (B)

Emotion and aggression are driven by the amygdala, a small almond-shaped structure in the limbic system. It quickly evaluates the emotional significance of stimuli, generating rapid responses to threats and helping regulate aggressive behavior by signaling to the hypothalamus and brainstem to mobilize the body. This emotional evaluation and rapid action make the amygdala the key player in how we experience and react to emotional and social cues.

The other regions have different primary roles: the hippocampus mainly handles memory formation, the medulla controls basic life-sustaining functions like breathing and heart rate, and the thalamus acts as a relay station for sensory information.