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Showing 1 to 20 of 71 for “"Pigeons"”.
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Discounting of Probabilistic Reinforcers by Pigeons
… Green, Myerson, and Calvert's study with pigeons (2010) used repeated gambles rather than one-shot choices, which is the typical situation studied with humans, and the time to reinforcement, rather than the probability of reinforcement, may well have determined the animals' …
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SIMPLE AND CONTINGENT CHROMATIC AFTEREFFECTS IN PIGEONS
<p>In order to assess whether pigeons acquire simple and contingent chromatic aftereffects, four White Carneaux pigeons were trained to discriminate between colored and achromatic slides: Right and left key-pecks were reinforced following exposure to colored and achromatic slides, respectively. The …
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Effects of reinforcement delays on procrastination in pigeons
… requirement. In one experiment (Mazur, 1996), pigeons chose a later-onset work requirement over an earlier-onset work requirement when work requirements were identical and reinforcement was at an equal delay from the choice point. In Phase I of the present experiment, reinforcement was …
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Of pigeons, and mud, and streets, and clouds
Attending to nonhumans--the innumerable trees, rats, cows, copper, smog, clouds, bricks, oil, shade, doors, speed bumps, and others who must be omitted for the requisite brevity of an 'abstract'--orients the ecological problem per our everyday epistemology: how we relate with the world. In this …
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Pairing behavior of pigeons related to aggressiveness and territory
LD2668 .T4 1950 C377
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The effect of duration of grain presentation on the rate of pigeons' autopecking
Digitized by Kansas Correctional Industries
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Effects of intertrial interval and d-amphetamine on temporally organized behavior of pigeons
… interval and d-amphetamine on pecking of pigeons maintained by an interval bisection task. The side-tracking group responded based on the location of the key and the color-tracking group responded based on the color of the key. Intermediate stimulus durations were tested, separated by …
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Differentially expressed genes in aortic cells from atherosclerosis-resistant and atherosclerosis-susceptible pigeons
… cells from susceptible (WC) and resistant (SR) pigeons.</p><p>The most striking genetic differences were observed in energy metabolism and smooth muscle contractility. The WC cells derived their energy from glycolysis, while the SR cells utilized oxidative phosphorylation to produce energy. …
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Effects of a Limited Hold on Pigeons' Match-to-sample Performance Under Fixed-ratio Scheduling.
Pigeons were trained on a zero-delay identity match-to-sample task. Experiment 1 started with every correct match reinforced with grain access and subsequent conditions include higher fixed-ratio values. Experiment 2 included the same fixed-ratio values as experiment 1 with and without a limited …
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Adventitious differential reinforcement of emergent sample-specific behavior and common coding in pigeons' matching-to-sample
… 1 was designed to replicate these findings in pigeons and determine whether naming or adventitious differential reinforcement provides the best explanation. In Phase 1, 17 pigeons were trained to respond to different stimulus locations in the presence of red and green stimuli. In Phase 2 these …
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Being in the right place at the right time : time of day discrimination by pigeons, Columba Livia
Pigeons were trained to discriminate between four keys, one of which provided food in the mornings, another which provided food in the afternoons, and two which never provided food. Three experiments were performed to determine if pigeons could track food availability over a 24-hr period. In …
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