|
| AAB Posters |
| Monday, October 7, 2013 |
| 7:00 PM–9:00 PM |
| Gran Salon Yucatan (Fiesta Americana) |
|
| 95. Development of Chicks’ Choice Responses Reinforced by Either an Imprinted Stimulus or Food Under Concurrent Schedules of Reinforcement |
| Area: AAB; Domain: Applied Behavior Analysis |
| FUKUKO HASEGAWA (Tokiwa University), Tetsumi Moriyama (Tokiwa University) |
| Abstract: Newly hatched chicks showed the matching under concurrent reinforcement schedules in which the reinforcer is either an imprinted stimulus or food. Nevertheless, there was a strong bias for the position of the operant keys and the rate of responses was not stable. The present study was aimed at investigating the way which could eliminate the bias and make the chicks’ response rate stable. After newly hatched chicks were exposed to a moving red cylinder, their preferences for the stimulus were tested in the situation where both the stimulus and a novel stimulus were simultaneously exposed to each chick. Only imprinted chicks to the familiar stimulus were used as the subjects. They were divided into the imprinted-stimulus (n=3) or the food (n=6) groups. According to the group, the chicks’ key-peck responses were shaped by using the imprinted stimulus or food as reinforcer, respectively. Then chicks’ responses were under two-key concurrent variable-interval variable-interval schedules. However, chicks of each group showed a strong bias for either key and their response rates were not stable. At present, we have investigated the effect of forced-choice training to one-side key which is not preferred. The figure shows the response bias for one chick of each group. |
| |
|
| 96. In Search for Establishing Conditional Discriminations in Dogs |
| Area: AAB; Domain: Experimental Analysis |
| EDSON HUZIWARA (Universidade de Federal de São Carlos), Deisy das Graças de Souza (Universidade Federal de São Carlos), Tathianna Montagnoli (Universidade Federal de São Carlos) |
| Abstract: This paper presents two experiments that aimed to establish visual-visual conditional discriminations in dogs using an automatic device. In the Experiment I, three dogs received a procedure which establish behavioral skills that are pre-requirement to performances controlled by conditional discriminations: simultaneous simple discriminations between comparison stimuli and successive simple discriminations between sample stimuli. Experiment II, carried out with two dogs, used an adapted version of the protocol proposed by Dube (1996) for teaching conditional discriminations to people with special educational needs. In both experiments, subjects' performance were controlled by simple discriminations instead of conditional discriminations. Considering that dogs usually learn auditory-visual conditional discriminations, these unusual results represent a research issue that still needs to be investigated. The development of the automatic device and the shaping of responses in a touch screen represent important contributions to future experimental studies with dogs. |
| |
| |