Sensory processing disorder—also known as SPD or sensory integration disorder—is a term describing a collection of challenges that occur when the senses fail to respond properly to the outside world.

Children with a sensory processing disorder may have an increased or decreased sensitivity to sensory input, such as light, sound, and touch. They may avoid or seek out sensory stimulation as a result ...

Among disorders that cause sensory loss, the most distinctive are those that affect the sensory ganglia. These disorders are called sensory neuronopathies or sensory ganglionopathies. 1-5 The sensory ...