1. Introduction

   Editorial Pages: 1 - 2

2. Cortical steady-potential shifts in conditioning

   • Vernon Rowland
   • Herbert Bradley
   • Dan Deutschman

   OriginalPaper Pages: 3 - 22

3. Habituation of orienting responses as a function of “instructional set”

   • K. Gross
   • J. A. Stern

   OriginalPaper Pages: 23 - 36

4. Successive-beat analysis of cardiovascular orienting and conditional responses

   • Joseph E. O. Newton
   • Jorge Perez-Cruet

   OriginalPaper Pages: 37 - 55

5. Cardiac conditioning in the white rat with food presentation as unconditional stimulus

   • W. N. Schoenfeld
   • Maria A. Matos
   • A. G. Snapper

   OriginalPaper Pages: 56 - 67

6. Cybernetic problems of learning

   • Warren S. McCulloch

   OriginalPaper Pages: 68 - 76

7. Protection by drugs and psychotherapy against delayed psychosomatic responses: The role of positive autokinesis

   • Richard F. Tislow

   OriginalPaper Pages: 77 - 79

8. Chronic painless recording of intra-arterial blood pressure in unanesthetized dogs

   • J. Perez-Cruet

   OriginalPaper Pages: 80 - 84