Types of SPD

Types of SPD

Sensory Processing Disorder (SPD) currently includes three primary diagnostic groups:

  • Type I – Sensory Modulation Disorder
  • Type II – Sensory Based Motor Disorder
  • Type III – Sensory Discrimination Disorder

Type I – Sensory Modulation Disorder (SMD). Over, or under responding to sensory stimuli or seeking sensory stimulation. This group may include a fearful and/or anxious pattern, negative and/or stubborn behaviors, self-absorbed behaviors that are difficult to engage or creative or actively seeking sensation.

Type II – Sensory Based Motor Disorder (SBMD). Shows motor output that is disorganized as a result of incorrect processing of sensory information affecting postural control challenges and/or dyspraxia.

Type III – Sensory Discrimination Disorder (SDD). Sensory discrimination or incorrect processing of sensory information. Incorrect processing of visual or auditory input, for example, may be seen in inattentiveness, disorganization, and poor school performance.

This information is adapted from research and publications by: Lucy, J. Miller, Ph.D., OTR, Marie Anzalone, Sc.D., OTR, Sharon A. Cermak, Ed.D., OTR/L, Shelly J. ,Lane, Ph.D, OTR, Beth Osten, M.S,m OTR/L, Serena Wieder, Ph.D., Stanley I. Greenspan, M.D..