1. Science and its armageddon: Thoughts originating at International Symposia in 1980

   • Chandler M. Brooks

   Editorial Pages: 139 - 141

2. Conditional mechanisms of decision making

   • E. Kostandov
   • J. Arzumanov
   • G. Shostakovich

   OriginalPaper Pages: 142 - 150

3. Erratum

   • Charles Shagass

   Erratum Pages: 150 - 150

4. Self-stimulation by DC current as a model of motivated behavior

   • R. A. Pavlygina
   • V. D. Trush
   • P. V. Simonov

   OriginalPaper Pages: 151 - 158

5. New perspectives in temperament/personality research: The “Behavioral” model of the Warsaw group

   • Gordon L. Mangan
   • Timothy J. H. Paisey

   OriginalPaper Pages: 159 - 171

6. The role of muscle tension in “repression”

   • Gordon L. Mangan
   • Gardner Murphy
   • R. G. Farmer

   OriginalPaper Pages: 172 - 176

7. Conditional and unconditional components of post-shock freezing

   • Michael S. Fanselow

   OriginalPaper Pages: 177 - 182

8. An animal model of the hyperactive-child syndrome suitable for the study of the effects of food additives

   • Robert Barcus
   • Andrew I. Schwebel
   • Samuel A. Corson

   OriginalPaper Pages: 183 - 187

9. Conditional catecholamine changes in rhesus monkeys

   • Benjamin H. Natelson
   • Richard McCarty

   OriginalPaper Pages: 188 - 196