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42nd Annual Convention; Downtown Chicago, IL; 2016

Event Details

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Symposium #42
CE Offered: BACB
Cross-Species Analysis of Social Reinforcement: Evaluation and Quantification of Social Reinforcers in Rats, Dogs, and Humans
Sunday, May 29, 2016
10:00 AM–11:50 AM
Zurich AB, Swissotel
Area: EAB
CE Instructor: Timothy D. Hackenberg, Ph.D.
Chair: Timothy D. Hackenberg (Reed College)
Discussant: Allen Neuringer (Reed College)
Abstract: Social reinforcement is a topic of enormous conceptual and applied significance. The basic mechanisms of social reinforcement are not well understood, however. The goal of this session is to bring together several lines of research designed to assess the efficacy of social reinforcement across a range of species and different reinforcer types. Feuerbacher & Wynne will discuss research aimed at measuring the reinforcing efficacy of human social interaction for dogs, including analyses of reinforcer duration. Pinkston and colleagues will describe research on social/sexual reinforcement with rats, as a baseline against which to measure the response weakening effects of antidepressant drugs. Call and colleagues will present data comparing the relative efficacy of social and non-social reinforcers in autistic and non-autistic children, putting a sharper quantitative point on general methods for assessing social deficits in autism. Hackenberg and colleagues will discuss research exploring the effects of social familiarity on preference for social reinforcement in rats. Together, the work illustrates some promising methods for assessing and quantifying the efficacy of social reinforcement across species, settings, and reinforcers a first step in a comparative analysis of social reinforcement.
Longer Human Social Interaction Can Function as a Reinforcer for Some Dogs
ERICA N. FEUERBACHER (Carroll College), Clive Wynne (Arizona State University)
Abstract: Whether human social interaction can function as a reinforcer for domestic dog behavior remains unclear, but is an important question for owners hoping to maintain desirable behavior in their dogs through social interaction. Previously, we demonstrated that brief human interaction did not function as an effective reinforcer for dog behavior. However, others suggested longer interaction might, although confounding contingencies prevented clear conclusions. Thus, we examined whether 30 s of social interaction would function as a reinforcer for dog behavior. We saw little effect and no difference compared to dogs that received 4 s of interaction. To investigate a transient response spike in some subjects, we provided some dogs 4 min of presession noncontingent interaction. This did not affect responding. Finally, we implemented a multielement design in which dogs alternated within and across days between abolishing operation (presession attention) and establishing operation (presession ignore) conditions. Half of the dogs showed a reinforcement effect of 30 s social interaction, although with little distinction between abolishing operation and establishing operation conditions. The other half showed no reinforcement effect. Our results suggest that for some dogs, longer social interaction can function as reinforcer for their behavior, but session spacing might be a critical variable.
An Operant Paradigm for the Study of Antidepressant-Induced Sexual Dysfunction in Females
JONATHAN W. PINKSTON (University of North Texas), Lynda Uphouse (Texas Woman's University ), Duane Baade (Texas Woman's University )
Abstract: One of the most common side-effects of antidepressants is reduced motivation for and satisfaction from sexual activity, and this is especially true among women. The search for effective screens and treatments for antidepressant-induced sexual dysfunctions in the laboratory has been slow because current approaches have not reproduced the clinical findings; this likely stems from the fact current models have focused on sexual performance, not motivation to obtain sex. We report on a novel operant procedure for studying sexual motivation in rodents to assess dysfunction in sexual motivation. Ovariectomized Fischer 344 rats nose poked to raise a guillotine door, which allowed the female access to a compartment housing a sexually active male rat. Motivation to open the door and enter the male’s compartment was examined following hormone primes with 10 ug estradiol benzoate with or without 500 ug progesterone. Fluoxetine, a commonly prescribed antidepressant, was tested at 5, 10, and 15 mg/kg following hormone priming. Fluoxetine reliably reduced the number of nose pokes, delayed opening the door to the male’s compartment, and increased the latency to cross into the male’s compartment. The findings suggest the operant approach may provide a sensitive measure for screening antidepressant-induced sexual dysfunctions in females.
Measuring the Reinforcer Efficacy of Social Interactions in Children With Autism and Related Disorders
NATHAN CALL (Marcus Autism Center), Joanna Lomas Mevers (Marcus Autism Center), Sarah J. Miller (Marcus Autism Center; Emory University School of Medicine), Sarah Wymer (Marcus Autism Center)
Abstract: There is growing support for the theory that disruptions in the degree to which social interactions are reinforcing may constitute a root cause of autism spectrum disorder (ASD). This paper will present studies that have attempted to develop methods for quantifying the degree to which social interactions function as reinforcers for children with ASD. This will include the results of a study that used PR schedules to compare the relative reinforcing efficacy of social attention and leisure items in children with ASD (n=8), Williams Syndrome (WS; n=4), and typically developing peers (n=9). Participants in the ASD group exhibited higher breakpoints and Omax for leisure items than for attention, whereas children in the typically developing and WS groups exhibited the opposite pattern. Results will be discussed in terms of how these methods compare to other approaches to quantifying the reinforcing efficacy of social interactions in children with ASD.
The Role of Familiarity in Preference for Social Reinforcement in Rats
TIMOTHY D. HACKENBERG (Reed College), Lauren Vanderhooft (Reed College), L. B. Miller (Reed College), Emma Schweitzer (Reed College ), Shirin Porkar-Aghdam (Reed College), Lavinia C. M. Tan (Reed College)
Abstract: In a concurrent schedule procedure, female rats made repeated choices between two options, each of which opened into side compartments in a three-compartment apparatus. Responses on levers in the middle chamber opened guillotine doors separating the middle from the side compartments, permitting 45-s access to the side compartment adjacent to target lever. In baseline conditions, one side compartment contained a familiar female rat (the focal rats cagemate, with which it was housed outside the experiment), whereas the other side compartment was empty. In a second condition, the empty chamber was replaced with a new female rat, unfamiliar to the focal rat, thereby permitting a choice between a familiar and unfamiliar rat. This was followed by a return to baseline conditions, with choice between a familiar rat and an empty chamber. The focal rats showed a clear and consistent preference for the familiar rat over the empty chamber in baseline conditions, but reversed their preference in favor of the unfamiliar rat when pitted against a familiar rat. The methods show promise as an experimental paradigm for evaluating and quantifying preference between qualitatively different social reinforcers.


Modifed by Eddie Soh