Sd's Case Study

Decent Essays

SD’s (Did the SDs match): The SD’s in the video matched those that were described in the lesson plan. “Discriminative stimulus (SD) is an antecedent stimulus…it is something that occurs immediately before the behavior to trigger it” (Approachable ABA, 2013). It promotes the behaviour that the therapist wants to see the learner do or engage in. Motor Imitation: IT says, “Try this.” IT locates, picks up, and puts on the nose and mustache in their correct locations on Mr. Potato Head. 1. Motor Imitation was used as my first antecedent. Generally children with autism need to be taught ‘imitation skills’ as these skills don’t always develop naturally with these children. Since imitation is vital for language development, as well as for some other skills, it was important for imitation to be included in …show more content…

These skills can be taught with physical prompts or as a transfer from imitation. We want our learner to be able to react to different SDs such as “show me”, “find the”, or in this case “where is”, responding to requests based on item, function, feature or class. (Algonquin, 2017) This is important so they will be able react to what is required of them in everyday situations. 3. Tacts: IT holds up mouth, then asks, “What is this?” “Tacting is verbal behavior that is under the control of the nonverbal environment and includes nouns, actions, adjectives, pronouns, relations, and others” (Autism Community, 2011). Tacting is usually taught after learner has a range of mand and echoic behaviour. Tacts are reinforced by generalized reinforcers such as praise. By pointing to or holding up an item, in our case ‘the mouth’ and asking, “What is this?” (SD) in the presence of Mr. Potato Head, we can teach Timmy how to name items related to the toy as well as items or action in his world, thus increasing his vocabulary and verbal skills. 4. Mands: IT twirls eyes while withholding

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