The first visible signs of aging are in brain functioning

A team of researchers has decided to employ the high-risk research design in a longitudinal study of adolescent alcohol use. What will these researchers have to do to conduct such a study?

a. put their subjects in risky situations b. select subjects based on the presence of specific risk factors c. take the risk of investigating an unlikely cause d. assess the risky behaviors displayed by the subjects

Your brain has the ability to change in response to experience. This ability is known as

A) flexibility. B) plasticity. C) responsiveness. D) reactivity.