Imagine a child of one and half years of age playing with his toys, this child would not interact with other children except may be scream if one of the child takes his toy. At this age the child does not have the capacity to take into consideration others point of view, but as he grows up to be six or seven, he will engage in group play and understand different peoples perspective and progressively as he enters into his teens he would feel the need to develop positive human relation-ships (Hetherington et al, 2006). The intriguing question is what accounts for this progressive and steady evolution of the childs ability to perceive and describe complex relationships and learn new things efficiently? The quest for its answer and research into the area has lead to the inception of the field of developmental psychology (Papers4you.com, 2006).

Developmental psychology is the scientific study of progressive psychological changes that transpire in human beings as they age (Margaret & Butterworth, 2002). Child development is its rapidly emerging sub-field of study, which seeks to account for the gradual evolution of the Childss cognitive, social and other capacities, first by describing changes in the childs observed behaviours and then by uncovering the process and strategies that underlie these changes (Hetherington et al, 2006, p4). Although field has seen rapid developments recently, its relatively young with the first theories coming up just a century ago.

Proposing one of the first theories on the childrens emotional development was none other than the legendary Charles Darwin, who based most of his work on his sons earliest emotional expressions. Alfred Binet was another individual who pioneered in the filed by studying childrens learning and methods of assessing intelligence (Hetherington et al, 2006). Moreover, the field of cognition i.e. the way the human mind acquires, remembers and learns to use knowledge forms an integral part of the field and has a wide range of implications. From devising teaching methods in schools to big organisations employing it to create a learning environment for its employees the field has had a far reaching effect.

The nature of the subject is such that it has seen a flurry of theories, one contradicting the other, especially in the area of Cognitive development (Papers4you.com, 2006). There have been several different approaches to cognitive development like Jean Piagets theory, which emphasizes developmental changes in the organisation or structure of childrens thinking process or the Lev Vygotskys socio-cultural theory of cognitive development, which attributes the advancement in the childs thinking and learning to his/her interaction with the social world (Hetherington et al, 2006).

The field has limitless implications especially in improving childrens functioning and opportunities for development in important areas of their lives, especially in relationships with their family, friends, peers and personal development. There is no doubt that child psychology is a field on the move.

References
Hetherington, E. et al. (2006). Child Psychology: A contemporary viewpoint. 6th ed. McGraw-Hill, London.

Margaret, H & Butterworth, G. (2002). Developmental Psychology: Students handbook. Psychology Press, Hove.

Papers For You (2006) "P/PS/67. Disclosure of sexual abuse in children", Available from http://www.coursework4you.co.uk/sprtpsy5.htm 20/06/2006

Papers For You (2006) "S/PS/50. This essay critically discusses the assertion that the principles of transactional models of development help us to understand the causes of disturbing behaviour in young children", Available from <a href="http://www.coursework4you.co.uk/sprtpsy5.htm">Papers4you.com</a> 19/06/2006