Biology Stack Exchange is a question and answer site for biology researchers, academics, and students. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

In this journal article certain symptoms are called "activation" in nature. I have never come across this term prior to coming across this article, so I would like to know quite simply what does it mean.

share|improve this question
This question might be better placed over on Cognitive Sciences , and they could really do with some more questions – EnergyNumbers May 5 '13 at 6:25

The authors use the Positive and Negative Syndrome Scale (PANSS) to assess symptoms. One of its cluster scores is activation factor.


Original publication of the article, which doesn't list activation factors:

Marketed currently here:

None of the sources I saw specified what is meant by activation factor, and many didn't even mention it. It's possible that it's the hyperactivity mentioned in the original publication. Also, it's possible that it's a modified category in the version sold at the last link. Hopefully this is enough information to get you started, if you want to hunt down the details.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.