- SPD FAQ
- SPD Signs
- SPD Types
- Impact of SPD on Children's Behavior
- Impact of SPD on Adult Behavior
- SPD & Psychopathology in Adults
- Sensory Defensiveness Symptoms
- SD Self Test
- SD & Psychological Repercussions in Adults
- Alerting / Calming Sensation
- Sensory Diet Preferences
- Organizing & Disorganizing Sensation
- Daily Sensory Diet Schedule
- SPD Self Test
- Related Websites
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SPD Types

Sensory Modulation Disorder-SMD: inability to turn up or turn down volume of sensory input interferes with focusing in on and responding appropriately to relevant sensation. SMD can exist independent of other sensory issues.
SENSORY MODULATION DISORDER & BEHAVIORAL CHARACTERISTICS (Sharon Heller, PhD, 2010)
Sensory Discrimination Disorder-SDD: difficulty determining source, pitch, and frequency of sensation and distinguishing one sensation from another makes it hard to accurately discern sensory information. SDD generally co-exists with motor & modulation problems.
Sensory-Based Motor Disorder-SBMD: difficulty navigating through space makes you clumsy, uncoordinated and often gravitationally insecure (over-responding to position changes). SBMD generally co-exists with discrimination & modulation problems.
- Postural Disorders: Problems with movement pattern, balance, coordinating both sides of body (bilateral coordination)
- Dyspraxia: Poor motor coordination & problem performing voluntary actions.