In Psychology Using the theories of Piaget, LaBouvie-Vief, and Denney (plus the ideas of fluid and crystallized intelligence), explain changes in cognitive functioning in adolescence, emerging adulthood, and middle adulthood.
The Correct Answer and Explanation is :
Cognitive Changes in Adolescence, Emerging Adulthood, and Middle Adulthood
Cognitive functioning changes significantly throughout life, influenced by theories from Piaget, LaBouvie-Vief, and Denney, along with concepts of fluid and crystallized intelligence.
- Adolescence (Piaget’s Formal Operational Stage)
Piaget proposed that adolescents enter the formal operational stage, where they develop the ability to think abstractly, reason hypothetically, and use deductive logic. They become capable of metacognition (thinking about thinking) and idealistic thinking, often questioning societal norms. However, their cognitive abilities may still be limited by egocentrism, leading to personal fables and imaginary audience phenomena. - Emerging Adulthood (LaBouvie-Vief’s Postformal Thought)
LaBouvie-Vief expanded on Piaget’s work, suggesting that in emerging adulthood, thinking becomes more flexible, adaptive, and dialectical. Unlike adolescents, who often see the world in black and white, young adults develop postformal thought, where they recognize that truth can be subjective and influenced by context. They integrate logic with emotions and experience, allowing them to handle complex real-world problems. - Middle Adulthood (Denney’s Model & Fluid vs. Crystallized Intelligence)
Denney proposed that cognitive skills follow an age-related curve but can be maintained or improved through practice. Middle adulthood sees a decline in fluid intelligence (quick problem-solving, reasoning, memory) but an increase in crystallized intelligence (accumulated knowledge, wisdom, expertise). This means middle-aged adults may be slower at new problem-solving but excel in areas requiring knowledge and experience. They also use compensatory strategies like relying on experience rather than quick thinking.
These changes highlight how cognitive abilities evolve, shifting from abstract and idealistic thinking in adolescence to practical and experience-based reasoning in adulthood.
Now, I’ll generate an image representing these cognitive changes visually.

Here is the generated image representing cognitive development across adolescence, emerging adulthood, and middle adulthood. Let me know if you need any modifications or further explanations!