Reading and Analyzing a Scientific Journal Article.

This exercise is completely voluntary.  If you choose to do it, you must turn it in at your regular lab time during the week of April 28 - May 2.  Late submissions will not be accepted.   If you do turn it in, you can receive UP TO 5 points of extra credit for the course.

1. Read the Article: Daily worry is related to low heart rate variability during waking and the subsequent nocturnal sleep period by Jos F. Brosschot, Eduard Van Dijk, and Julian F. Thayer

2. Answer the following questions:

1) What were the hypotheses that these authors tested?

2) What biobehavioral variables did they test?

3) What is HRV?

4) According to Table 1, when was HRV the highest?

5) How did the investigators measure worry?

6) According to Table 2, which behavioral variables had the greatest effect on HR during waking hours?

7)  What conclusions did the authors draw from their study?

8)  Which findings support the author's conclusions?

9) What limitations of the study were cited by the authors?

10)  If you were redoing this study, what would you do differently?