Since newborns spend about 80% of their sleep time in the REM phase of sleep, it is theorized that this active phase of sleep is involved in brain stimulation and growth. Newborns do grow quickly. However, this cause and effect point of view has not been clearly established (or elucidated).
Piaget's theory is relevant as it emphasizes how cognitive development occurs in stages, providing insights into how children learn and acquire knowledge. However, some critique his theory for underestimating the abilities of children and lacking consideration for cultural influences on development. While Piaget's stages may not be exact, his contributions have influenced our understanding of child development.
Theory
The major stage theories are the Psychoanalytic theory, behaviorism theory and Cognitive theory.
Darwin's theory was accepted,at first Darwin himself did not publish his findings as he did not feel anybody else would agree with his findings but once he found that a fellow scientist had conducted the same research and was going to publish his findings Darwin then also decided that he would publish his findings also.
A question that involves 'the following' has to have some things following it before it's possible to think of an answer.
Jean Piaget was the Swiss developmental researcher known for his theory of cognitive development. His stages of development concept, including sensorimotor, preoperational, concrete operational, and formal operational stages, have had a significant impact on the study of children's cognitive growth and learning processes.
The psychoanalytic theory, developed by Sigmund Freud, emphasizes the influence of unconscious drives and motives on human development. This theory suggests that early childhood experiences shape personality and behavior, and that unconscious processes play a significant role in our thoughts and actions throughout our lives.
the electron part
His theory of the sun as central was ridiculed by his contemporaries.
A developmental crisis
A developmental crisis
Theories can be changed or rejected if and when the scientific evidence no longer supports the theory.