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| DEV Monday evening poster session |
| Monday, May 28, 2012 |
| 7:00 PM–9:00 PM |
| Exhibit Hall 4AB (Convention Center) |
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| 1. Toddlers’ Search Behavior in the Absence of Visual Cues |
| Area: DEV; Domain: Basic Research |
| PABLO COVARRUBIAS (Universidad de Guadalajara), Francois Tonneau (Universidade do Minho), Alma Velázquez (Universidad de Guadalajara), Daniel Andrade (Universidad de Guadalajara), Elizabeth Godínez (Universidad de Guadalajara) |
| Abstract: In the sandbox version of the A-not-B search task, children observe a sandbox surface while searching for an object previously buried at two different locations (A or B). In our study, two-year-old children searched for a toy buried at A and then at B, with a curtain placed in front of them to prevent the use of visual cues while searching. After a 10-s delay, children were encouraged to reach under the curtain and find the buried toy. Results showed that children responded mainly toward the midpoint between the A and B locations, which suggests that at this age the motor response system becomes unstable in the absence of visual information. |
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| 2. The Use of Fixed-Time Schedules of Reinforcement to Maintain Responding |
| Area: DEV; Domain: Applied Research |
| STEVEN W. PAYNE (University of Kansas), Claudia L. Dozier (University of Kansas), Adam M. Briggs (University of Kansas) |
| Abstract: Time-based schedules of reinforcement are typically used to reduce the occurrence of a particular response. However, researchers have suggested that responses may maintain under time-based schedules, although it is unclear as to what mechanisms are responsible for this maintenance. The purpose of the current study is to evaluate whether responding will maintain under FT schedules and to evaluate possible mechanisms by which response maintenance under FT schedules occurred. Subjects are preschool age children who are typically developing. For one subject, we have shown that responding did not maintain under FT schedules. For two participants, however, we showed that responding did maintain under FT schedules. Further evaluation was conducted in which the possibility for adventitious reinforcement of responding was removed. The results of this manipulation suggested that adventitious reinforcement was not necessary for the maintenance of responding, and that stimulus control was the likely mechanism for response maintenance under FT schedules. We are currently in the process of replicating these results across the participants. |
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| 3. Implementing Behavioral Procedures in a Day Program for Individuals with Brain Injuries |
| Area: DEV; Domain: Service Delivery |
| JACKIE THAXTON (Florida State University/Panama City), Zaday Sanchez (Florida State University/Panama City), Jordynn Bree (Florida State University/Panama City), Alison Parker Ivancic (Florida State University/Panama City) |
| Abstract: The purpose of this poster is to illustrate the ways in which behavioral principles are being employed in a day program for individuals with brain injuries. This day program is a non-profit organization that provides post rehabilitation services to adult brain injury survivors in a group setting. Upon initial visits, behavior analysis students developed an assessment to measure the deficits of the members so that individual goals could be set. From these assessments, the most common goals were used to guide daily activities offered to the members. A sample of the activities offered includes cooking, short and long term memory tasks, and crafts. To help ensure the members were benefitting from these activities, engagement data were collected and social validity was measured. In addition to the changes made in the group setting, individualized services were offered. These included procedures designed to reduce stuttering in a 25-year-old woman, increase functional language in a 52-year-old man with aphasia, and decrease bizarre vocalizations in a 36-year-old woman. With the growing number of volunteers from Florida State Universitys Applied Behavior Analysis program, other advances are anticipated in the future. |
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