An investigation of the effects of a parent delivered stimulus-stimulus pairing intervention on vocalizations of two children with Autism Spectrum Disorder

Assessing the Effects of Observational Conditioning and Response-Contingent Pairing on the Vocalizations of Children With Autism Spectrum Disorder

Children with autism spectrum disorder (ASD) often display impairments in communication, such as limited echoic behavior, few vocal-verbal responses, and a lack of functional communication. One potential way to foster the acquisition of vocal responses in individuals with disabilities is by conditioning vocalizations as reinforcers. Conditioning procedures include stimulus-stimulus pairing, response-contingent pairing (RCP), operant discrimination training, and observational conditioning (OC). However, previous research has not evaluated whether OC can be used to condition vocalizations as reinforcers. The current study assessed whether two conditioning procedures, RCP and OC, were effective in conditioning vocalizations as a reinforcer and also evaluated their effect on the rate of vocalizations. Participants included three children with ASD, ages 5-10 years old. During the conditioning phase, rates of vocalizations during the RCP and OC conditions and a control condition were compared within an adapted alternating-treatments design. Reinforcer assessments were completed in a multielement design, pre- and postconditioning, to assess whether the target vocalizations acquired reinforcing properties. A conditioning effect and an increase in the rate of vocalizations were observed for two of the three participants; however, the conditioning effect was minor for one participant. Overall, the results of this study indicate both the RCP and OC procedures may be beneficial in increasing vocalizations for some children and could be incorporated into clinical programs and further explored in future research.

Father-figure Presence and Externalizing and Internalizing Problems in Mexican and Dominican American Children

This study examined whether various types of father-figure presence in Mexican (n = 414)- and Dominican- American (n = 336) households measured at baseline predicted child mental health functioning one year later. Results of linear regression analyses showed that the impact of household structure on child functioning was significant and differed by ethnicity. For Mexican-American children, residing with a step-father or other adult male predicted increased externalizing problems compared to children residing their biological father. For Dominican-American children, residing with no father figure predicted increased externalizing problems compared to children residing with a biological father. Implications for practice and future research are discussed.