Evaluating functions of praise for children diagnosed with autism spectrum disorder.

We assessed whether novel praise statements could be used to (a) maintain and increase responses with existing reinforcement histories and (b) teach a previously untaught response among children diagnosed with autism spectrum disorder across two experiments. During response-stimulus pairing, two responses resulted in preferred edibles but only one also produced a praise statement. In the absence of edibles, the response continuing to produce praise tended to persist more. Next, reversing the praise contingency tended to increase the other response. However, in no case did contingent delivery of those same praise statements result in the acquisition of untaught responses. These findings suggest that conditioning praise statements could serve different functions (antecedent or consequence) depending on the reinforcement history for particular responses.

Increasing conversations between older adults with dementia using textual stimuli.

Dementia often leads to behavior changes such as deficits in communication and social interaction; one effective antecedent strategy for improving communication involves rearranged or supplemental stimuli. In the present study, researchers placed individualized textual prompts on the dinner table of three women at an assisted-living facility. Textual stimuli included prompts such as "Debbie, ask Pat where she liked to travel," and led to increases in conversation duration. The results suggest that antecedent interventions can improve social interactions for individuals with dementia with minimal involvement of caregivers.Textual prompts may improve social communication between individuals with dementia.Salient stimuli, such as participants' names, may be necessary to facilitate conversation.The textual intervention requires minimal training and response effort from caregivers and care staff.Improvements in conversation duration maintained at 6 months post-study.