What triggers the delayed phase preference in adolescents?
A. the increase in stress that adolescents experience resulting in excess cortisol
B. melatonin, which is released about 2 hours later each night in adolescents
C. anxiety that adolescents experience because of social pressures
D. testosterone in adolescent males and estrogen in adolescent females
Answer: B
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Which of the following brain changes contributes to an increase in impulsive behavior during adolescence?
A) immaturity of the prefrontal cortex B) weak connections between prefrontal cortex and the limbic system C) changing neurotransmitter levels D) all of the above
In a study among college students by Hystad and colleagues (2009), the trait of hardiness was ____
a. ?positively correlated with grades b. ?negatively correlated with grades c. ?positively correlated with health complaints within the high academic stress group d. ?negatively correlated with health complaints within the high academic stress group