1. Prospective representation: The effects of varied mapping of sample stimuli to comparison stimuli and differential trial outcomes on pigeons’ working memory

   • Angelo Santi
   • William A. Roberts

   OriginalPaper Pages: 103 - 108

2. Short-term retention in rats: The effect of goal-arm confinement on delayed alternation performance

   • Douglas S. Grant
   • M. Layne Marshal

   OriginalPaper Pages: 109 - 115

3. Retroactive interference in rat radial maze performance: The role of point of delay interpolation and the similarity and amount of interpolated material

   • Robert G. Cook
   • Michael F. Brown

   OriginalPaper Pages: 116 - 120

4. Effects of sample duration, retention interval, and passage of time in the test on pigeons’ matching-to-sample performance

   • Veronika T. Guttenberger
   • Edward A. Wasserman

   OriginalPaper Pages: 121 - 128

5. An examination into some variables said to affect serial learning

   • E. J. Capaldi
   • Timothy M. Nawrocki
   • Donna R. Verry

   OriginalPaper Pages: 129 - 136

6. Extending the generality of the odor hypothesis: Double-alternation responding in the wood rat (Neotoma floridana osagensis)

   • Stephen F. Davis
   • Karen K. Gustavson
   • Mary K. Petty-Zirnstein

   OriginalPaper Pages: 137 - 142

7. Conditioned aversion is promoted by memory of CS−

   • David Kucharski
   • Norman G. Richter
   • Norman E. Spear

   OriginalPaper Pages: 143 - 151

8. Summation and configuration in patterning schedules with the rat and rabbit

   • William P. Bellingham
   • Katy Gillette-Bellingham
   • E. James Kehoe

   OriginalPaper Pages: 152 - 164

9. Extensive training, partial reinforcement, and temporal gaps do not affect S-S learning in second-order autoshaping

   • Ruth M. Colwill
   • Robert A. Rescorla

   OriginalPaper Pages: 165 - 170

10. Further avoidance studies with goldfish: Brightness discrimination and transposition

    • D. J. Zerbolio

    OriginalPaper Pages: 171 - 180

11. Sensitivity of pigeons to prereinforcer and postreinforcer delay

    • A. W. Logue
    • Michael E. Smith
    • Howard Rachlin

    OriginalPaper Pages: 181 - 186

12. Signal properties of reinforcement and reinforcement omission on a multiple fixed-ratio schedule

    • Louis D. Matzel

    OriginalPaper Pages: 187 - 193

13. Effects of shocks, presented at a fixed time of day, on appetitive and general activity of rats

    • Sumio Imada
    • Hiroyuki Kondo
    • Hiroshi Imada

    OriginalPaper Pages: 194 - 200

14. The effects of variations in the interpellet interval on wheel running in the rat

    • Anthony L. Riley
    • Cora Lee Wetherington
    • Robert J. Dacanay

    OriginalPaper Pages: 201 - 206

15. Reviews of reward contrast effects: An addendum

    • Allan M. Schrier

    Notes and Comment Pages: 207 - 207

16. Announcements and Notices

    Announcement Pages: 208 - 208