An evaluation of in vivo desensitization and video modeling to increase compliance with dental procedures in persons with mental retardation

Fear of dental procedures deters many individuals with mental retardation from accepting dental treatment. This study was conducted to assess the effectiveness of two procedures, in vivo desensitization and video modeling, for increasing compliance with dental procedures in participants with severe or profound mental retardation. Desensitization increased compliance for all 5 participants, whereas video modeling increased compliance for only 1 of 3 participants.     

Rate-decreasing effects of the atypical neuroleptic risperidone attenuated by conditions of reinforcement in a woman with mental retardation

Effects of two doses of risperidone on the performance of a matching task under tangible reinforcement and nonreinforcement conditions were measured in a woman with mental retardation. In both conditions, time to complete the task increased and response rates decreased under two doses of risperidone. Accuracy was generally unchanged. These changes were much smaller in the tangible reinforcement condition; thus, reinforcement seemed to protect performance from the rate-decreasing effects of risperidone.     

Functional analysis of tardive dyskinesia: implications for assessment and treatment

We conducted an analogue functional analysis contrasting motor tasks with varying types of social consequences for movements associated with tardive dyskinesia (TD) in 2 men who had been diagnosed with developmental disabilities and TD. Our findings suggest that TD-related movements were not a function of social reinforcement contingencies. However, motor-activation tasks decreased TD-related movements, suggesting a possible novel intervention.     

An enriched teaching program for reducing resistance and indices of unhappiness among individuals with profound multiple disabilities

We evaluated an enriched teaching program for reducing resistance and indices of unhappiness displayed by 3 individuals with profound multiple disabilities during teaching sessions. The program involved presentation of preferred activities before, during, and after each teaching session, discontinuation of identified nonpreferred activities, and a brief break and preferred activity following occurrence of resistance. Implementation of the enriched teaching program was accompanied by reductions in resistance and indices of unhappiness for each participant. Results also indicated no negative impact of the program on participant performance of the teaching steps or staff teaching proficiency. Staff questionnaire responses provided a degree of social validation for the observed changes in that staff reported the participants liked the enriched teaching program more than the traditional teaching process. Directions for future research discussed include identifying critical aspects of the overall program and the potential relation between teaching proficiency and the program's enrichment effectiveness.     

Interaction of reinforcement schedules, a behavioral prosthesis, and work-related behavior in adults with mental retardation

The effects of variable-interval (VI) and fixed-ratio (FR) schedules of reinforcement for work-related behavior and an organizer for the work materials (behavioral prosthesis) were evaluated with 3 adults with severe or profound mental retardation. The participants had been recommended for study because of high rates of off-task and aberrant behavior in their daily vocational training programs. For 2 participants, VI and FR schedules resulted in the same outcome: more aberrant behavior than on-task and off-task behavior combined. The FR schedule nearly eliminated emission of aberrant and off-task behavior by the 3rd participant. Combining the behavioral prosthesis with FR reinforcement (FR+O) increased the proportion of time spent in on-task behavior by all participants under certain FR schedule parameters. Second-by-second analyses of the observation records revealed that FR schedules reduced off-task and aberrant behavior during work sequences (i.e., ratio runs), and FR+O led to a further reduction of these behaviors during postreinforcement pauses. Overall, the results show how organizer and schedule parameters can be adjusted to produce an optimized balance between productivity and reinforcement while undesirable behavior is minimized.     

Imitation of High-Interest Comic Strip Models' Appropriate Classroom Behavior:

Animated cartoons depicting aggressive behavior have been used widely in the investigation of reinforced and generalized imitation in the laboratory. Little research has examined the use of either animated or comic strip cartoons in the teaching and encouragement or desirable skills and activities in real-life settings. The present study employed comic strip drawings of high-interest cartoon models to symbolize and teach skills contributing to the social and educational development of children in a child care center. The results demonstrate that high-interest cartoon models are both effective and feasible agents for positive behavioral change when used within the generalized imitation framework. In addition, four alternative explanations of generalized imitation were tested: the failure to discriminate explanation, the variable-ratio schedule explanation, the demand characteristics explanation and the reinforcement value of stimulus similarity explanation. The findings contradicted the first three and offered evidence in support of the fourth.     

The Pragmatic Press of Political Reality: Use of P.L. 94-142 Discretionary and Set-Aside Funds

Two major reports regarding the financing of special education and the use of P.L. 94-142 discretionary and set-aside funds are analyzed and interpreted with respect to the impact of these funds on state and local education agencies. The need for flexibility as required by the law, as well as the pragmatic press of political reality in the identification of needs and the distribution of resources, are recognized as key factors in the utilization of these monies. The impact of a change in the amount and/or allocation of these funds are discussed in the context of probable consequences at the state and local levels.