1. Editorial

   • Stewart Wolf

   EditorialNotes Pages: 3 - 4

2. Editorial comment onIs alcoholism a disease?

   EditorialNotes Pages: 5 - 5

3. Heart rate—QT relationships during baroreceptor stimulation with diminished autonomic influence on the ventricles

   • Ming-He Huang
   • Stephen S. Hull
   • Stewart Wolf

   OriginalPaper Pages: 6 - 12

4. Classical aversive conditioning of catecholamine and corticosterone responses

   • David L. Pitman
   • Benjamin H. Natelson
   • John E. Ottenweller

   OriginalPaper Pages: 13 - 22

5. The effect of unilateral stellectomy on the regulation of heart rate during behavioral stress

   • George E. Billman

   OriginalPaper Pages: 23 - 31

6. Prolactin—a hormone that mirrors passiveness in crisis situations

   • Tores Theorell

   OriginalPaper Pages: 32 - 38

7. Application of chaos theory to biology and medicine

   • James E. Skinner
   • Mark Molnar
   • Mirna Mitra

   OriginalPaper Pages: 39 - 53

8. Methods for improving the signal-to-noise ratio of endogenous-evoked potentials

   • Alex Vincent

   OriginalPaper Pages: 54 - 65

9. Biological basis of the stress response

   • James P. Henry

   Special Section Pages: 66 - 83

10. Cybernetic problems of learning conditioning of control, of command, and of expediency

    • Warren S. McCulloch

    Historical Feature Pages: 84 - 90

11. Book review

    • Stewart Wolf

    BookReview Pages: 91 - 92