Sensory under-responsivity
Sensory craving/seeking. 2. Sensory-based motor disorder (SBMD)
According to proponents, sensory-based motor disorder shows motor output that is disorganized as a result of incorrect processing of sensory information affecting postural control challenges, resulting in postural disorder, or developmental coordination disorder.The SBMD subtypes are:

Dyspraxia
Postural disorder

3. Sensory discrimination disorder (SDD)
Sensory discrimination disorder involves the incorrect processing of sensory information. The SDD subtypes are:
Visual
Auditory
Tactile
Gustatory (taste)
Olfactory (smell)
Vestibular (balance, head position and movement in space)
Proprioceptive (feeling of where parts of the body are located in space, muscle sensation)
Interoception (inner body sensations). Treatment
Sensory integration therapy
Typically offered as part of occupational therapy, ASI that places a child in a room specifically designed to stimulate and challenge all of the senses to elicit functional adaptive responses. Occupational Therapy is defined by the American Occupational Therapy Association (AOTA) as "Occupational therapy practitioners in pediatric settings work with children and their families, caregivers and teachers to promote participation in meaningful activities and occupations". In childhood, these occupations may include play, school and learning self-care tasks. The following link provides information from AOTAs website regarding Occupational Therapy working with children and youth:  https://www.aota.org/~/media/Corporate/Files/AboutOT/Professionals/WhatIsOT/CY/Fact-Sheets/Children%20and%20Youth%20fact%20sheet.ashx. An entry level Occupational Therapist can provide treatment for sensory processing disorder however, more advanced clinical training exists to target the underlying neuro-biological processes involved.
Both organization recognise the need for further research about Ayres Sensory Integration and related approaches. In the USA this important to increase insurance coverage for related therapies. AOTA and RCOT have made efforts to educate the public about sensory Integration and related approaches. AOTAs practice guidelines and RCOTs informed view "Sensory Integration and sensory-based interventions" currently support the use of sensory integration therapy and interprofessional education and collaboration in order to optimize treatment for those with sensory integration and processing difficulties. The AOTA provides several resources pertaining to sensory integration therapy, some of which includes a fact sheet, new research, and continuing education opportunities. Controversy
There are concerns regarding the validity of the diagnosis. SPD is not included in the DSM-5 or ICD-10, the most widely used diagnostic sources in healthcare. The American Academy of Pediatrics (AAP) in 2012 stated that there is no universally accepted framework for diagnosis and recommends caution against using any "sensory" type therapies unless as a part of a comprehensive treatment plan.