Developmental Psychology is a branch of psychology that focuses on the study of human development across the lifespan. It encompasses many different aspects of development, including physical, cognitive, emotional, and social changes that occur as individuals grow and mature.

In particular, Developmental Psychology in Cognitive Psychology is concerned with the study of how cognitive abilities and processes change over time. This includes the study of how children learn to think, reason, and problem-solve as they grow older.

What is Cognitive Psychology?

Before diving into Developmental Psychology in Cognitive Psychology, it’s important to understand what Cognitive Psychology is. Cognitive Psychology is a subfield of psychology that focuses on the mental processes involved in perception, attention, memory, language use, problem-solving, and decision-making.

Cognitive Psychologists are interested in understanding how humans process information from their environment and how this information is used to make decisions and solve problems. They also study how cognitive processes can be improved through training or other interventions.

Developmental Psychology in Cognitive Psychology

Within Cognitive Psychology, Developmental Psychology focuses on studying the changes that occur in cognitive processes over time. This includes changes in attention span, memory capacity, reasoning ability and problem-solving skills.

One important aspect of Developmental Psychology in Cognitive Psychology is understanding how these abilities develop during childhood. For example, research has shown that infants have very limited attention spans but this increases as they grow older.

Cognitive Development Theories

There are several theories within Developmental Psychology that attempt to explain how cognitive abilities develop over time. One such theory is Piaget’s Theory of Cognitive Development which suggests that children go through four distinct stages of development between birth and adolescence.

According to Piaget’s theory:

– The Sensorimotor Stage (Birth-2 years): Infants learn by using their senses and motor skills. – The Preoperational Stage (2-7 years): Children begin to use symbols to represent objects and ideas.

– The Concrete Operational Stage (7-12 years): Children become more logical in their thinking and can solve problems using concrete objects. – The Formal Operational Stage (12 years and up): Adolescents develop abstract reasoning ability.

Another theory is the Information Processing Theory which suggests that cognitive development is a gradual process of increasing processing efficiency. This means that as children mature, they become better at processing information and solving problems.


Developmental Psychology in Cognitive Psychology is an important field of study that helps us understand how cognitive abilities develop over time. By understanding how these abilities change, researchers can develop interventions to help improve cognitive functioning. Moreover, it’s essential for parents, teachers, and caregivers to have an understanding of developmental psychology in order to provide the best possible support for children as they grow and mature.