title: Relationship between Sympathetic Skin Responses and Auditory Hypersensitivity to Different Auditory Stimuli.
abstract: [Purpose] Auditory hypersensitivity has been widely reported in patients with autism spectrum disorders. However, the neurological background of auditory hypersensitivity is currently not clear. The present study examined the relationship between sympathetic nervous system responses and auditory hypersensitivity induced by different types of auditory stimuli. [Methods] We exposed 20 healthy young adults to six different types of auditory stimuli. The amounts of palmar sweating resulting from the auditory stimuli were compared between groups with (hypersensitive) and without (non-hypersensitive) auditory hypersensitivity. [Results] Although no group × type of stimulus × first stimulus interaction was observed for the extent of reaction, significant type of stimulus × first stimulus interaction was noted for the extent of reaction. For an 80 dB-6,000 Hz stimulus, the trends for palmar sweating differed between the groups. For the first stimulus, the variance became larger in the hypersensitive group than in the non-hypersensitive group. [Conclusion] Subjects who regularly felt excessive reactions to auditory stimuli tended to have excessive sympathetic responses to repeated loud noises compared with subjects who did not feel excessive reactions. People with auditory hypersensitivity may be classified into several subtypes depending on their reaction patterns to auditory stimuli.
authors.affiliation: Department of Psychiatric Rehabilitation Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan.
authors.forename: Fumi
authors.initials: F
authors.lastname: Kato
authors.affiliation: Department of Psychiatric Rehabilitation Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan.
authors.forename: Ryoichiro
authors.initials: R
authors.lastname: Iwanaga
authors.affiliation: Hirado City Health and Welfare Centre for Children with Disabilities, Japan.
authors.forename: Mami
authors.initials: M
authors.lastname: Chono
authors.affiliation: NPO Peaacas, Japan.
authors.forename: Saori
authors.initials: S
authors.lastname: Fujihara
authors.affiliation: Department of Psychiatric Rehabilitation Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan.
authors.forename: Akiko
authors.initials: A
authors.lastname: Tokunaga
authors.affiliation: Department of Psychiatric Rehabilitation Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan.
authors.forename: Jun
authors.initials: J
authors.lastname: Murata
authors.affiliation: Department of Psychiatric Rehabilitation Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Tanaka
authors.affiliation: Department of Psychiatric Rehabilitation Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Nakane
authors.affiliation: Department of Psychiatric Rehabilitation Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan.
authors.forename: Goro
authors.initials: G
authors.lastname: Tanaka
keywords: Auditory hypersensitivity; Auditory stimuli; Sympathetic nervous system