Chapter 3 Identifying, Developing, and Managing Operant Antecedents What Stimuli Can Be Antecedents? • any overt or covert perception can serve as an operant antecedent stimulus • immediate antecedents occur very shortly before or overlap with behavior • distant antecedents are covert stimuli that affect behavior for a long time Identifying Antecedents • a functional analysis can demonstrate that a stimulus is an antecedent • antecedents for behavioral excesses may be too frequent • antecedents for behavioral deficits may be too infrequent Learning Discrimination • discrimination learning is a process through which we associate different stimuli with different reinforcement contingencies • discriminative stimuli signal that a behavior has been attached to a specific consequence Learning Discrimination (continued) • S-deltas are stimuli that signal that no relationship has been established • stimulus generalization occurs when we fail to discriminate • stimulus equivalence occurs when several different stimuli serve the same purpose Stimulus Control • stimulus control is the ability of the discriminative stimulus to influence the occurrence of behavior • control may be the result of the interactive effect of several stimuli • contextual control occurs when many stimuli serve to identify a situation Prompting • prompts remind us to engage in behavior we already have learned • physical guidance prompts manually manipulate the client’s body through a behavior • verbal prompts use spoken or written instruction to direct behavior Prompting (continued) • other prompts include: – pictorial prompts – gestural prompts – auditory prompts Fading Prompts • fading refers to a process of slowly removing prompts after behavior is established • decreased assistance is a fading procedure in which the frequency of prompts is reduced • increasing assistance procedure gradually increases the intensity of prompts until a correct response occurs Fading Prompts (continued) • delayed prompting gradually increases the time before a prompt is made • when fading is too slow, the individual may become too dependent on them • when fading is too fast, error rates increase and the task may not be learned Modeling and Instructions • modeling teaches behavior through demonstration • instruction teaches by offering written or oral descriptions of behavior • modeling and instruction also can show consequences • modeling and instruction can be more effective when combined Application of Modeling and Instruction • fade these prompts • match the level of the information with the ability of the learner • make consequences apparent • break down complex tasks into manageable tasks • reward models • reward observers for attending Application of Modeling and Instruction (continued) • use models who are similar to the observer • use more than one model Cognitive Antecedents • cognitive antecedents are typically covert selfstatements that include: – self-instructions – rules – strategies – logical thinking • self-statements develop into more complex covert statements with age Cognitive Antecedents (continued) • research on the effectiveness of self-instruction has shown mixed results • prompt the use of the self-instructional strategy • cognitive antecedents are acquired Altering Antecedent Chains • target behaviors can involve a complex series of links that lead to the completion of a task • links become antecedents • disrupting the links can serve to decrease behavior • behavior can be strengthened by increasing the stimulus control of the links Managing Antecedents to Increase or Decrease Behavior • decrease behaviors by: – reducing antecedents – avoiding antecedents – narrowing antecedent control • use cognitive strategies to change characteristics of antecedents • turn a discriminative stimulus into an S-delta by eliminating its predictive ability Tips on Managing Antecedents • • • • look carefully at all potential antecedents assess both overt and covert antecedents ask others to assist in monitoring antecedents include analysis of antecedents for behavioral deficits • fade prompts in small steps • find creative ways to manage antecedents