Which of the following brain mechanisms has been implicated in anorexia?
a) Starvation releases natural pain-reducing opioids producing a high which reinforces not eating.
b) With puberty, female hormones increase dramatically and damage centers which control eating in the thalamus and pituitary.
c) Excessive exercise depletes the brain of neurotransmitters utilized by areas that regulate hunger or satiation.
d) Stress-released hormones reduce the sensitivity of receptors that detect blood-sugar levels and release hormones that induce hunger.
Question 2
A large U.S. study of 80,000 students was conducted by the American College of Health Association (ACHA; 2009). What did students report regarding their health status?
a) Overall, 66 of students listed their general health as excellent or very good.
b) Overall, 27 of students listed their general health as excellent or very good.
c) Overall, 7 of students listed their general health as fair or poor.
d) A and C only
Brain scans showing the white-matter pathways involved in everyday learning:
Brain quote
Hominid Brain Size
Action of Hunger Signals on Feeding Circuits in the Brain
A Split-Brain Experiment
Brain functions are lateralized