The use of a picture activity schedule for vocal stereotypy reduction in a child with autism

Abstract

Children with ASD exhibit auto-stimulatory behaviour of different types, with the most common behavioural problem being auto-stimulatory stereotyped behaviour. It is believed that vocal auto-stimulatory behaviour occurs because the individuals with ASD do not receive sufficient stimulation from their environment and therefore have the need to stimulate themselves by emitting vocal stereotypy of different form and magnitude. The participant is a 10-year-old boy diagnosed with ASD. The intervention used was a picture activity schedule. Results showed an immediate decrease in self-stimulatory behaviour upon implementation of the intervention, with a 100% success rate. There is insufficient research on the implementation of picture activity schedules in order to reduce self-stimulatory behaviour in children with ASD. The present study shows that picture activity schedules can be used in certain situations where it is inappropriate to exhibit self-stimulating behaviour. It is not certain if the picture activity schedule functioned as a prompt for the participant to actively engage in his spare time, or if it functioned as a discriminative stimulus for situations when the problem behaviour is inappropriate. The social validity of the intervention was discussed, as well as suggestions for future research implementation.