The prefrontal cortex of the brain performs certain complex functions. Which of the following statements describes the effects of damage to this area?

• A. Inability to perceive sensory information such as touch, taste, and smell.
• B. Changes in language abilities, intelligence, and memory, the patient speaks words that aren't even present in the dictionary.
• C. Difficulty in speech, the person can think of words and can write them but is unable to speak.
• D. Alterations in decision-making, social behavior, personality, and self-awareness.

Answer: (D)