Final answer:
Adolescent cognition involves changes in brain development, self-regulation, problem-solving, and working memory.
Step-by-step explanation:
Adolescent cognition is characterized by several key changes. Firstly, their brains are not fully developed during adolescence; however, they undergo significant complexity and efficiency improvements. Secondly, their self-regulation increases, allowing them to better control their behavior and make decisions. Thirdly, adolescents develop problem-solving abilities that involve analytical thinking. Lastly, their working memory capacity increases, enabling them to hold and manipulate information more effectively.