Hyposensitivity

Hyposensitivity, also known as Sensory under-responsitivity, refers to abnormally decreased sensitivity to sensory input. 
Hyposensitivity is especially common in people with Autism, and is mostly seen in children. Those experiencing this have a harder time stimulating their senses than normally. They may not feel pain as easily as others, may be drawn to loud noises, be attracted to bright lights and colours, among other things.
Hyposensitivity can lead to an inactivated brain. This can give concentration problems, feeling drained or feckless, depression, procrastination and also hypersensitivities. 
Types of hyposensitivity.
"Auditory hyposensitivity" symptoms include:
"Tactile hyposensitivity" symptoms include:
"Olfactory hyposensitivity" symptoms include:
"Taste hyposensitivity" symptoms include:
"Visual hyposensitivity" symptoms include:
"Vestibular hyposensitivity" symptoms include:
"Proprioceptive hyposensitivity" symptoms include: