Read the article and answer these questions:
- What part of the brain is most directly involved with fear?
- What part of the brain includes the two groups of neurons discussed in the article?
- Describe how the memory of an unpleasant event is experienced by someone whose extinction neurons have influenced the memory.
- Unfortunately, the effect of extinction neurons is not always permanent. What is the term for an instance of this non-permanence? What does the person feel?
- The modern techniques that made this experiment possible are remarkable. At what level did we used to consider the brain, and at what level can we investigate now?
- What conditions could be treated using this study and similar studies? Name at least two mentioned in the article.