Further evaluation of methods to identify matched stimulation

Area of Science:

• Behavioral Psychology
• Applied Behavior Analysis

Background:

• Vocal stereotypy is a repetitive behavior often seen in individuals with developmental disabilities.
• Understanding the function of vocal stereotypy is crucial for developing effective interventions.
• Automatically reinforced behaviors are maintained by their own sensory consequences.

Purpose of the Study:

• To investigate the effects of preferred auditory stimulation on vocal stereotypy.
• To identify environmental variables that function as establishing or abolishing operations for vocal stereotypy.
• To explore methods for finding alternative stimuli that can replace automatically reinforced vocal behaviors.

Main Methods:

• Two experiments were conducted with two participants exhibiting vocal stereotypy.
• Experiment 1 assessed the effects of toy manipulation and noncontingent music.
• Experiment 2 utilized a three-component multiple schedule to evaluate auditory stimulation and contingent reprimands.

Main Results:

• Sound-producing toys and noncontingent music decreased vocal stereotypy for one participant.
• Vocal stereotypy remained below baseline levels after auditory stimulation was removed.
• Contingent reprimands increased vocal stereotypy for one participant, suggesting they acted as an establishing operation.

Conclusions:

• Auditory stimulation can function as an abolishing operation for vocal stereotypy.
• Reprimands can function as an establishing operation for vocal stereotypy.
• This study provides a framework for identifying substitute stimuli to manage automatically reinforced vocalizations.