The desire for positive social relationships is one of the most fundamental and universal human needs. This need has deep roots in evolutionary history in relation to mating and natural selection, and this can exert a powerful impact on contemporary human psychological processes (Baumeister & Leary 1995). Failure to meet these needs can have devastating consequences on an individual's psychological well-being. These needs may not be met as rejection, isolation, and ostracism occur among people on a daily basis. Although being ignored and excluded is a pervasive circumstance present throughout history across species and humans of all ages and cultures, for example the use of ostracism (the feeling of isolation and exclusion) has been observed in modern cultures (Woods 1978), in schools and academic institutions (Heron 1987) and interpersonal relationships (Williams 2000). While ostracism can be seen as a social norm, the effect this can have on an individual has the potential to be harmful to individuals, including extreme feelings of hurt. Individuals can respond to rejection in different ways, from psychological to behavioral. Both psychological and behavioral responses to interpersonal rejection postulate theories based on the various paradigms used to stimulate ostracism in experimental settings which have led to the creation of models such as Williams (2007) and Leary (2009). It is vitally important to recognize just how important the element of feeling accepted is to human survival in order to understand why rejection can cause detrimental effects on psychological well-being. Maslow in 1943 developed the hierarchy of needs, which accumulates variable components from physiological aspects (breathing, for...... half of the document ...... e. Behavior Research Methods, Instruments, and Computers, 38, 174- 180.Williams, K. D., & Sommer, K. L. (1997). Social ostracism by peers: Does rejection lead to idleness or compensation? Personality and Social Psychology Bulletin, 23, 693-706Williams, K. D., & Zadro, L. ( 2001).Ostracism: On Being Ignored, Excluded, and Rejected. R. (2006). How long does the effects of ostracism last in the socially anxious, Journal of Experimental Social Psychology, 43, 692-697. How Low Can You Go? Ostracism by a Computer Reduces Belonging, Control, Self-Esteem, and Meaningful Existence, 40, 560-567.