Subtypes Of Sensory Processing Disorder  & Our Senses 

Subtypes of SPD

Sensory Processing Disorder is now being used as a global umbrella term that includes all forms of this disorder, including 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.




Sensory Processing Disorder & Our Senses 

1. Tactile-what you feel (touch).


2. Visual-what you see.


3. Auditory-what you hear.


4. Gustation-what you taste.


5. Olfactory-what you smell.


6. Proprioception-body awareness. This is the ability to know where you are without using your sight. If you close your eyes and touch your nose successfully that’s because of your proprioceptive system.


7. Vestibular-where you are in space, this input comes from movement and head position. Your vestibular system lets you know if you are upright or hanging upside down.

8. Interoception-how you ‘feel’. This is input that lets you know you are hungry, thirsty, need to use the restroom, that your heart is beating fast, that you are hot or cold, etc.











DISCLAIMER: I am not an Occupational Therapist. I am an adult who has Sensory Processing Disorder, a sensory parent and a Grandma. The information on this website is not medical advice and does not replace the information that your child's therapists gives you. These are just ideas and information that I have learned myself over the years of being a parent and an adult living with SPD. If you are concerned for your child, please always seek medical attention through a family doctor, pediatrician or therapist. This website is for suggestions and informational purposes only. Each child is different and what works for one child may not for another because all children have different needs. Please always consult with a professional.

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