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The discovery in the late 1950s that the level of dopamine was decreased in the brains of Parkinson’s patients was followed in the 1960s by successful treatment with the drug levodopa, which is converted to dopamine in the brain. This historical event is one of the greatest medical breakthroughs in the field of neurology.
  • BrainFacts/SfN
This progressive disorder strikes approximately 5,600 Americans annually, with an average survival time of just two to five years from symptom onset.
  • BrainFacts/SfN
Currently approved treatments for Alzheimer’s disease do not modify the course of the disease and offer only temporary mitigation of some symptoms, such as agitation, anxiety, unpredictable behavior, sleep disturbances, and depression.
  • BrainFacts/SfN
Affecting some 30,000 Americans and placing 200,000 more Americans at risk for inheriting the disease from an affected parent, Huntington’s disease is now considered one of the most common hereditary brain disorders.
  • BrainFacts/SfN
Parkinson’s disease is a progressive neurological disorder that affects approximately 1.5 million individuals in the United States. Typically, people start showing symptoms over the age of 50. In fact, aging is the only known risk factor for the development of this disorder.
  • BrainFacts/SfN
Extreme stressors such as trauma in combat, being a victim of assault or sexual abuse, or experiencing or witnessing a crime can lead to a form of stress that can last a lifetime.
  • BrainFacts/SfN
Considered the most common mental illnesses, anxiety disorders affect an estimated 18 percent of the adult population in a given year, or 40 million Americans.
  • BrainFacts/SfN
What do standing frustrated in a supermarket checkout line or sitting in a traffic jam have in common with fleeing predators, as was done in the early days of human beings?
  • BrainFacts/SfN
Molecules that are important in brain development may help treat or prevent brain injuries and disorders.
  • BrainFacts/SfN
Learn about the science underlying the effects of alcohol on human biology and behavior in this interactive teaching unit from the National Institutes of Health.
  • National Institutes of Health
This Web resource highlights the valuable role that animals play in biomedical research. The anatomy of the reward pathways in the human brain and the rat brain are compared to emphasize their similarities.
  • University of Utah
A detailed booklet of symptoms, causes, and treatments for schizophrenia, along with information on how to help and cope.
  • National Institute of Mental Health