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Full-Text Articles in Psychology
An Evaluation Of Outcome Differentiation Using Biologically Neutral Stimuli, Wendy Ann Newell
An Evaluation Of Outcome Differentiation Using Biologically Neutral Stimuli, Wendy Ann Newell
Theses and Dissertations (Comprehensive)
This experiment investigated the specificity of encoding the outcomes of instrumental responding with rats. The first part of the study examined the differential outcome effect (DOE) using a 0.5 second flash of light as the outcome differentiator. Acquisition of a two-choice conditional discrimination was not enhanced if Response 1 (R1) in the presence of Stimulus 1 (S1) produced food plus a light flash, and R2 during S2 produced only food. Next, 2/3 of the animals were then trained to make two new responses (R3 and R4), one earning light plus food and the other earning food only. There was no …
Evidence For Common Coding Of Temporal And Nontemporal Information In Pigeons, Stephen Bridson
Evidence For Common Coding Of Temporal And Nontemporal Information In Pigeons, Stephen Bridson
Theses and Dissertations (Comprehensive)
Two experiments found evidence that pigeons commonly code temporal and visual samples that are associated with the same comparisons in many-to-one matching. In Experiment 1, pigeons were trained to match temporal (2-sec and 8-sec keylight durations) and color (red and green) samples to line tilt comparisons (vertical and horizontal). Similar rates of forgetting were found for all samples. Furthermore, retention of sample information appeared more similar for samples which shared common comparisons than those that did not. In Experiment 2, pigeons learned new comparison (circle and triangle) associations with either temporal or visual samples from Experiment 1. When tested on …