1. Operant variability when reinforcement is delayed

   • Katie Wagner
   • Allen Neuringer

   OriginalPaper Pages: 111 - 123

2. Discrimination of what, when, and where is not based on time of day

   • Stephanie J. Babb
   • Jonathon D. Crystal

   OriginalPaper Pages: 124 - 130

3. The influence of temporal spacing on time-place discrimination

   • Matthew J. Pizzo
   • Jonathon D. Crystal

   OriginalPaper Pages: 131 - 143

4. An analysis of visual oddity concept learning in a California sea lion (Zalophus californianus)

   • Petra Hille
   • Guido Dehnhardt
   • Björn Mauck

   OriginalPaper Pages: 144 - 153

5. Color vision in the giant panda (Ailuropoda melanoleuca)

   • Angela S. Kelling
   • Rebecca J. Snyder
   • Terry L. Maple

   OriginalPaper Pages: 154 - 161

6. Family resemblances facilitate formation and expansion of functional equivalence classes in pigeons

   • Masako Jitsumori
   • Naoki Shimada
   • Sana Inoue

   OriginalPaper Pages: 162 - 175

7. Scalar effects in the visual discrimination of numerosity by pigeons

   • Jacky Emmerton
   • Jennifer C. Renner

   OriginalPaper Pages: 176 - 192

8. Effects of preexposure and retention interval placement on latent inhibition and perceptual learning in a choice-maze discrimination task

   • L. G. De la Casa
   • William Timberlake

   OriginalPaper Pages: 193 - 201

9. Effects of forced-choice runway variations on rats’ T-maze serial pattern learning

   • Izabela Szelest
   • Jerome Cohen

   OriginalPaper Pages: 202 - 214