3 - Identification (by 2 years) At this stage the more common definition of "self-awareness" comes into play, where infants can identify themselves in a mirror through the "rouge test" as well as begin to use language to refer to themselves.
Esgate,.; Groome,.; Baker,.; Heathcote,.; Kemp,.; Maguire,.; Reed,. Since Piaget's contribution to the field, infant aaron douglas essay cognitive development and methods for its investigation have advanced considerably, with numerous psychologists investigating different areas of cognitive development including memory, language and perception, coming up with various theories 3 for example, neo-Piagetian theories of cognitive development. Symbolic thought edit Symbolic thought refers to the ability to use words, images, and other symbols to represent words or feelings. Non-verbal communication also develops and actions such as waving goodbye are produced. A number of research studies have used this technique and shown self-awareness to develop between 15 and 24 months of age. Low ratios also set the stage for high-quality interactions between caregivers and children that can promote childrens well-being. 33 Stage 2 - Situation (by 2 months) In addition to differentiation, infants at this stage can also situate themselves in relation to a model. There is contradicting evidence on whether causal perception is innate and present at birth or whether it is a result of perception development. 22 Physical laws edit Largely thanks to the innovative strategies developed by Renee Baillargeon and her colleagues, considerable knowledge has been gained in the about how young infants come to understand natural physical laws. Infants reasoning about hidden objects: Evidence for event-general and event-specific expectations. Rochat,.; Goubet,. Contents, overview edit, main article: Nature versus nurture, tabula rasa is a theory that the (human) mind is at birth a "blank slate" without any rules for processing data, that data is added and rules for processing it are formed solely by one's sensory experiences.