Table 2. Neurobiology of resilience. Experimental studies.

2.a. Genetics

Authors and year	Country	Sample	Materials and methods	Findings
Mesquita et al., 2015	Portugal	Human sample (220 children)	-Investigation of 5-HTTLPR and BDNF polymorphisms -Assessment through the DAI	Higher indiscriminate behaviour in s/s homozygotes of 5-HTTLPR, if institutionalized
Sweitzer et al., 2013	USA	Human sample (546 volunteers)	-DRD4 genotype -Computerized delay discounting -SES	Bidirectional association of DRD4 genotype with temporal discounting, conditioned by participants’ early life circumstances, according to the “differential susceptibility” model

BDNF= brain-derived neurotrophic factor; DAI= disturbances of attachment interview; DRD4= dopamine D4 receptor; SES= socioeconomic status.