Which of the following is not controlled by pre-frontal cortex of brain ?

Question

Accepted Answer

The prefrontal cortex (PFC) is primarily involved in higher-level cognitive functions. Option 4, Vision & Hearing, is the correct answer because these sensory functions are primarily processed in other areas of the brain, not the prefrontal cortex.

Here's why:

*   **Vision & Hearing (Option 4):** Visual processing primarily occurs in the occipital lobe, and auditory processing primarily occurs in the temporal lobe. While the PFC *can* be influenced by visual and auditory information (e.g., using visual cues to solve a problem), it is not the primary area responsible for processing these sensory inputs. The initial processing and interpretation of visual and auditory stimuli happen in the occipital and temporal lobes, respectively. Therefore, the prefrontal cortex does *not* control vision and hearing in the same way it controls higher-level cognitive functions.

Here's why the other options are incorrect:

*   **Body Movement (Option 1):** While the primary motor cortex is directly responsible for executing movements, the prefrontal cortex plays a crucial role in *planning* and *sequencing* movements, especially complex, goal-directed actions. It's involved in deciding *what* movement to make and in what order. Therefore, the PFC *does* influence body movement, albeit indirectly.

*   **Thinking (Option 2):** Thinking, especially abstract thought, reasoning, and decision-making, is a core function of the prefrontal cortex. It's responsible for working memory, cognitive flexibility, and the ability to consider different possibilities. Therefore, the PFC *does* control thinking.

*   **Problem Solving (Option 3):** Problem-solving relies heavily on executive functions such as planning, working memory, and cognitive flexibility, all of which are controlled by the prefrontal cortex. The PFC allows us to analyze problems, develop strategies, and evaluate potential solutions. Therefore, the PFC *does* control problem-solving.

In summary, while the prefrontal cortex is involved in planning movements, thinking, and problem-solving, it is *not* the primary area responsible for processing basic sensory information like vision and hearing. These functions are primarily handled by the occipital and temporal lobes, respectively. Therefore, Option 4 is the correct answer.