Abstract
In this study, we investigated the effect of a serotonin transporter gene polymorphism (5-HTTLPR) on praise
seeking need and rejection avoidance need in young Japanese males (n=111). The results showed that there was no
difference in praise seeking need and rejection avoidance need between serotonin transporter gene polymorphism
types; however, the correlation between praise seeking need and rejection avoidance need was different depending
on the presence of particular serotonin transporter gene polymorphisms. We suggest that serotonin transporter gene
polymorphisms should be regarded as one possible factor that affects the relationship between praise seeking need
and rejection avoidance need.
