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#1. A piano teacher is working with a student, Antonio, who consistently plays the correct notes in his pieces but struggles with dynamics, often playing everything at a similar volume. The teacher wants Antonio to play certain passages softer and others louder, without changing the sequence of notes or the fingering. To achieve this, the teacher incrementally reinforces slight reductions or increases in the force with which Antonio strikes the keys, depending on the desired dynamic (e.g., reinforcing slightly softer playing for a ‘pianissimo’ section). Which behavioral procedure is the teacher primarily utilizing?
This scenario describes shaping within topographies Shaping is a differential reinforcement procedure where successive approximations to a target behavior are reinforced When shaping within topography the overall form or configuration topography of the behavior remains consistent but a specific dimension of that behavior is targeted for change Dimensions can include magnitude eg loudness force duration how long a behavior lasts latency time between stimulus and response or frequency rate of behavior In Antonios case the topography of playing the correct notes is already established The teacher is focusing on modifying the magnitude loudnesssoftness of how those notes are played gradually reinforcing behaviors that are closer to the desired dynamic levels Shaping across topographies would involve gradually changing the form of the behavior itself eg teaching a complex finger movement from scratch Shaping across functions would involve altering the effect the behavior has on the environment to produce reinforcement which is not the primary focus here Total task chaining is a procedure used to teach a sequence of behaviors by teaching all steps in the chain during each instructional trial and is not directly related to modifying a dimension of an already occurring single behavior
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