Sensory integration (SI) is a neurological process in which the brain receives, organises and interprets sensory information (touch, sight, hearing, smell, taste, movement and deep body sense) from the environment and the body itself. It enables appropriate responses to stimuli, learning and effortless everyday functioning.

Proper SI is essential for motor development, concentration, coordination and emotional regulation. When the brain processes stimuli incorrectly, a child may be hypersensitive (e.g. avoiding touch or noise) or hyposensitive (seeking strong stimulation, being hyperactive).

SI therapy uses specialised exercises that provide carefully selected stimuli, helping the nervous system organise information more effectively. Beyond the basic senses, the vestibular system (balance, movement) and proprioception (deep body awareness) play a crucial role.

Sensory integration disorders manifest as abnormal processing of stimuli, resulting in hypersensitivity or hyposensitivity. Key symptoms include motor or emotional hyperactivity, concentration difficulties, coordination problems, clumsiness, avoidance of touch or certain clothing, and difficulties in peer relationships. Symptoms can occur in both young children and adolescents, often in a mixed form.