1. Differential response gradients to a Pavlovian safety signal following active avoidance training in young and adult rats

   • James F. Brennan

   OriginalPaper Pages: 277 - 281

2. Effects of reinforcement-paired stimuli on general activity

   • Thomas S. Hyde
   • Milton A. Trapold

   OriginalPaper Pages: 282 - 286

3. The combined effects of dosage level and interstimulus interval on the formation of one-trial poison-based aversions in rats

   • Emir Anne Andrews
   • Norman S. Braveman

   OriginalPaper Pages: 287 - 289

4. Effects of varying sucrose reinforcers and amobarbital sodium on positive contrast in rats

   • Joan S. Rabin

   OriginalPaper Pages: 290 - 294

5. Higher order conditioning of a taste aversion

   • Nigel Bond
   • Wayne Harland

   OriginalPaper Pages: 295 - 296

6. Nonshock confinement duration and shock- and safebox similarity during escape training in rats

   • Joseph J. Franchina
   • Timothy E. Schindele

   OriginalPaper Pages: 297 - 300

7. Effects of tactile stimulation on the initiation and maintenance of the following response in Japanese quail (Coturnix coturnix japonica)

   • Maureen Clements
   • Jon Lien

   OriginalPaper Pages: 301 - 304

8. “Thinking ahead” in rat discrimination learning

   • Stewart H. Hulse
   • Catherine E. Campbell

   OriginalPaper Pages: 305 - 311

9. Sustained attention: Stimulus control determined by schedule of cue production interacting with cue duration

   • William S. Maki

   OriginalPaper Pages: 312 - 316

10. Signal-food contingency and signal frequency in a continuous trials auto-shaping paradigm

    • J. Gibbon
    • C. Locurto
    • H. S. Terrace

    OriginalPaper Pages: 317 - 324

11. The effects of differing type and magnitude of reward on the contrafreeloading phenomenon in rats

    • Lynn C. Robertson
    • Suzanne C. Anderson

    OriginalPaper Pages: 325 - 328

12. Copulatory behavior and nest building behavior of wild house mice (Mus musculus)

    • D. Q. Estep
    • D. L. Lanier
    • D. A. Dewsbury

    OriginalPaper Pages: 329 - 336

13. Competitive and noncompetitive rearing and shock-elicited aggression in the rat

    • Robert Ader

    OriginalPaper Pages: 337 - 339

14. Overtraining, extinction, and reversal learning by kittens

    • J. M. Warren

    OriginalPaper Pages: 340 - 342

15. Determinants of planarian aggregation behavior

    • James H. Reynierse
    • Kathryn Gleason

    OriginalPaper Pages: 343 - 346

16. Behavioral contrast and inhibitory stimulus control

    • James V. Couch

    OriginalPaper Pages: 347 - 358

17. Additive summation by stimulus compounding irrespective of behavioral contrast during discrimination training: An investigation with positive reinforcement and avoidance schedules

    • Stanley J. Weiss

    OriginalPaper Pages: 359 - 369

18. Backward conditioning to a CS following an expected vs. a surprising UCS

    • Allan R. Wagner
    • William S. Terry

    OriginalPaper Pages: 370 - 374

19. Sameness-difference judgments inSaimiri sciureus based on volumetric cues

    • Paul Czerny
    • Roger K. Thomas

    OriginalPaper Pages: 375 - 379

20. Frustration and the production of schedule-induced polydipsia

    • Michael L. Thomka
    • Robert A. Rosellini

    OriginalPaper Pages: 380 - 384