Mentor: Dr. Paul Neuman
The current research is aimed at examining persistent preference based upon terminal-link entry in choice situations. Twelve pigeons, six naive and six with a history of exposure to concurrent-chains schedules, will be presented with concurrent-chains schedules with relatively long initial links. Similar research has been conducted with relatively short initial links (fixed interval 3s), but the generality of the findings is being explored by lengthening the initial links to fixed intervals of 15s, 30s, and 60s, depending on the condition.
Previous research involved changing terminal links from VR 60/VR 60 (equal alternatives condition) and VR 60/ VR 30 or VR60/ VR 90 (unequal alternatives condition), and then returning to the equal alternative condition to examine persistent preference. The use of short initial links in previous research resulted in preferences based almost exclusively on the terminal link response requirements; however, the current research is designed to investigate whether lengthening the initial links (terminal links are unchanged from previous research) will influence persistent preference.