Final answer:
The content of consciousness is associated with the prefrontal cortex, which plays a central role in complex cognitive processes and decision-making.
Step-by-step explanation:
The brain site involved in the content of consciousness is the prefrontal cortex. Studies have shown that the prefrontal cortex is significantly engaged in various cognitive functionalities such as maintaining attention, speech, decision-making, and more complex aspects of cognition that contribute to the content of consciousness. The medial temporal lobe, which contains the hippocampus, is essential for memory formation, but not specifically for the overall content of consciousness. The ventromedial prefrontal cortex, part of the prefrontal area, also plays a significant role in processing risks and emotions, contributing to one's conscious experiences.