Brain growth during adolescence appears to be influenced by the hormonal changes of puberty. What effects do these hormonal changes seem to have?
a. They affect the onset and offset of genes that influence cortisol levels.
b. They flow over the brain, causing a general excitation of neurons.
c. They cause an increase in blood flow to the brain.
d. They lead to secondary dimorphism of brain structures.
Question 2
Most theories of racial, ethnic or sexual identity include which of the following ideas?
a. Realizing the significance of race, ethnicity or sexual orientation plays a critical role.
b. There is a necessary phase of active involvement in one's cultural group.
c. Individuals must turn against the values of the dominant culture before their identity can form.
d. Most individuals are in diffusion and do not reach achievement.
A rat pressing a lever to obtain rewarding brain stimulation.
Brain Stem and Cerebellum
Inferior aspect of brain
Posterior view of midbrain in relation to brain stem
Sagittal section of brain showing hypothalamic nuclei
Exponential Growth Question