1. Ego-involved persistence: When free-choice behavior is not intrinsically motivated

   • Richard M. Ryan
   • Richard Koestner
   • Edward L. Deci

   OriginalPaper Pages: 185 - 205

2. US-US associations as a factor in the habituation to emotionally arousing stimuli

   • Murray Goddard

   OriginalPaper Pages: 207 - 219

3. To what extent is Goddard's theory about associations and emotionally arousing stimuli?: Comment on Goddard, 1991

   • John J. Furedy

   Letter Pages: 221 - 224

4. Reply to Furedy (1991)

   • Murray Goddard

   Letter Pages: 225 - 228