What does Dunn’s Sensory Processing Model focus on?

• A. Interaction between neurological thresholds for incoming sensory input and the behavioral responses generated by them
• B. Genetic determinants of sensory processing
• C. Neurochemical modulation of sensory input
• D. Visual processing speed

Answer: (A)

Dunn’s Sensory Processing Model focuses on how sensory input is organized by the brain through two interacting factors: neurological thresholds for detecting stimulation and the behavioral responses used to regulate that input. The threshold is how much input is needed before a sensation is noticed—high thresholds mean more input is required, low thresholds mean sensations register quickly. The way a person responds to that input—whether they use active strategies to change the input or respond passively—interacts with the threshold to create consistent processing patterns. These patterns include cases where a person seeks input because they have high thresholds and act to obtain more stimuli, avoids input when thresholds are low and they actively regulate it, is sensitive when a low threshold leads to quick notice of stimuli with passive responses, or experiences low registration when a high threshold yields minimal awareness despite passive engagement. This framework explains a wide range of everyday sensory behaviors and guides intervention by adjusting environmental input or teaching self-regulation, rather than focusing on genetics, neurochemical factors, or a single sense like vision.