Option #2: Developmental Psychology Hughes (1975) Baillargeon (1986) Chugani (1999) Giedd (2004) Prior and Welling (2001) Nichols (1996) Rosenzweig, Bennet and Diamond (1972) - Rats, Neuroplasticity, and Enriched Environments (Even though this is a rat study, this could be used as evidence that poverty has effects on the cognitive development of humans.) Pollitt et al (1995) Mani (2013) Koluchova (1972) Rutter et al (2007) Curtiss (1977) Werner & Smith (2001) Coan, Shaefer, & Davidson (2006) Morgan et al (2000) Ainsworth (1970) Harlow (1958) Bowlby (1973) Hazan and Shaver (1987)