Sensory Integration and<unk>  Difficulties Construct-related evidence relating to sensory integration and<unk>  difficulties from Ayres' early research emerged from factor analysis of the earliest test the SCISIT and Mulligan's 1998 "Patterns of Sensory Integration Dysfunctions: A Confirmatory Factor Analysis". Sensory integration and<unk>  patterns recognised in the research support a classification of difficulties related to: * Sensory registration and perception (discrimination) * Sensory reactivity (modulation) * Praxis (meaning "to do") * Postural, Ocular & Bilateral Integration<unk>  (SPD) Proponents of a new nosology SPD have instead proposed three categories: sensory modulation disorder, sensory-based motor disorders and sensory discrimination disorders (as defined in the Diagnostic Classification of Mental Health and Developmental Disorders in Infancy and Early Childhood). 1. Sensory modulation disorder (SMD) Sensory modulation refers to a complex central nervous system process by which neural messages that convey information about the intensity, frequency, duration, complexity, and novelty of sensory stimuli are adjusted. SMD consists of three subtypes: # Sensory over-responsivity. # 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<unk>  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<unk>  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).
Sensory processing disorder
Somatosensory disorder
Motor disorder
Cognitive reserve
Communication disorder
Catastrophic illness
Stroke recovery
Pollutant-induced abnormal behaviour