The document discusses complex cognitive processes such as conceptual understanding, thinking, reasoning, critical thinking, decision making, and transfer. It covers key topics such as what concepts are, how they are formed, and how they aid memory. It also discusses executive function and how it involves managing one's thoughts through skills such as self-control, working memory, and cognitive flexibility. Critical thinking involves thinking reflectively and evaluating evidence from different perspectives, while decision making requires evaluating alternatives and making a choice.