1. Behavioral contrast redux

   • Ben A. Williams

   OriginalPaper Pages: 1 - 20

2. The value hypothesis and acquisition of preference in concurrent chains

   • Randolph C. Grace

   OriginalPaper Pages: 21 - 33

3. Preference and resistance to change in concurrent variable-interval schedules

   • Matthew C. Bell
   • Ben A. Williams

   OriginalPaper Pages: 34 - 42

4. Discrimination of individual vocalizations by black-capped chickadees (Poecile atricapilla)

   • Leslie S. Phillmore
   • Christopher B. Sturdy
   • Ronald G. Weisman

   OriginalPaper Pages: 43 - 52

5. Simultaneous temporal and spatial processing

   • Jonathon D. Crystal
   • Benjamin J. Miller

   OriginalPaper Pages: 53 - 65

6. Erratum to: How early maternal separation and juvenile experience with pups affect maternal behavior and emotionality in adult postpartum rats

   • Stephanie L. Rees
   • Alison S. Fleming

   Erratum Pages: 66 - 66