What do monkeys, rats, worms, and humans all have in common? We all need physical touch to survive and thrive. Today we discuss attachment and the role it plays in human development. 

References: 

Harlow, H. F. (1959). Love in infant monkeys. Scientific American, 200(6), 68-75.

Ardiel, E. L., & Rankin, C. H. (2010). The importance of touch in development. Paediatrics & child health, 15(3), 153-156.

Caldji, C., Tannenbaum, B., Sharma, S., Francis, D., Plotsky, P. M., & Meaney, M. J. (1998). Maternal care during infancy regulates the development of neural systems mediating the expression of fearfulness in the rat. Proceedings of the National Academy of Sciences, 95(9), 5335-5340.