1) Д-р Плуесс и Д-р Белски
Recent research in developmental psychology provides further evidence that individuals differ in their sensitivity. According to the differential susceptibility hypothesis by Belsky (1997b; 1997a; 2005) individuals vary in the degree they are affected by experiences or qualities of the environment to which they are exposed. Some individuals are more susceptible (or sensitive) to such influences than others however, not only to negative but also to positive ones. For example, research by Pluess & Belsky  has shown that children with difficult temperaments in infancy are more susceptible to the effects of parenting and child care quality in the first 5 years of life. Intriguingly, these children not only had more behavioral problems in response to low quality care, they also had the least problems of all children when having a history of high quality care. This suggests that children with difficult temperament are highly susceptible rather than difficult and therefore able to benefit significantly more from positive experiences compared to other less susceptible children. These discoveries have prompted Pluess & Belsky to use the term vantage sensitivity in their review of such results, highlighting the evolutionary advantages of the trait.