Ayres' Sensory Integration theory was developed in which decades?

• A. 1960s-1970s
• B. 1980s-1990s
• C. 1940s-1950s
• D. 2000s

Answer: (B)

The question is about when Ayres' Sensory Integration theory was developed and became established in the field. The best fit is the 1980s–1990s. While Ayres laid the groundwork in the 1960s and 1970s with the initial ideas about how sensory processing influences learning and behavior, the theory reached broad clinical development, refinement, and widespread adoption during the 1980s and 1990s. This era saw more formalized practice guidelines, training, and research that solidified Sensory Integration as a framework used in pediatric occupational therapy. The earlier decades contain the origins, but the mature, widely practiced form aligns with the 1980s–1990s.