How would neuroscientists explain the early adulthood shifts in behavior that are often seen in the early twenties?
a. There is a decrease in cortical activity in the diencephalonthe hypothalamus and thalamuswhich in turn leads to a stabilizing of endocrine activities.
b. There is a thickening of the corpus callosum, so information can travel more readily across the cerebral hemispheres.
c. There is further development in the prefrontal cortex, which is involved in higher level thinking processes.
d. There is increased myelination in the structures of the hindbrainthe pons, medulla, and cerebellumwhich leads to greater control of impulsive behaviors.
Question 2
____ are caused by changes to the structure of the skin and its connective and supporting tissue and worsened by sun exposure and cigarette smoking.
a. Tumors
b. Liver spots
c. Wrinkles
d. Freckles
Early Spectroscope
Structure of the Early Universe
Hints of Earth’s Early Appearance
Anatomically modern humans left archaeological clues, including evidence of burials, which indicate
Two early Homo skulls