TY - JOUR AU - Kagan, Jerome AB - About 15% of Caucasian children in the second year of life are consistently shy and emotionally subdued in unfamiliar situations, whereas another 15% are consistently sociable and affectively spontaneous. A majority of the children in these two groups retain these profiles through their eighth year. In addition, the two groups differ in physiological qualities that imply differential thresholds in limbic sites, especially the amygdala and the hypothalamus, suggesting that the two temperamental groups are analogous to closely related strains of mammals. However, the behavioral profiles of the children are influenced in a major way by environmental conditions existing during the early years of life. TI - Temperamental Contributions to Social Behavior JF - American Psychologist DO - 10.1037/0003-066X.44.4.668 DA - 1989-04-01 UR - https://www.deepdyve.com/lp/american-psychological-association/temperamental-contributions-to-social-behavior-OUj9tKjBmu SP - 668 EP - 674 VL - 44 IS - 4 DP - DeepDyve ER -