Inclusion Criteria:  Have nonspecific chronic neck pain, defined as a recurrent or persistent pain that lasts more than 3 months, with no trauma or etiology/diagnosis associated.  Exclusion Criteria:  Visual and hearing dysfunction not corrected by eyeglasses/contact lenses or a hearing aid; Infectious diseases; Cervical myelopathy; Cervical surgery; Cervical fracture or/and subluxation; Vestibular pathology; Neurological disorder/deficits; Rheumatic autoimmune diseases; History of cancer; Severe cervical trauma.