Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Litscher, G.
Effects of laserneedle stimulation in the external auditory meatus on brainstem and very early auditory evoked potentials in humans.
Neurol Res. 2006; 28(8): 837-840.
Doi: 10.1179/016164106X110373
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- Führende Autor*innen der Med Uni Graz
- Litscher Gerhard
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- Abstract:
- OBJECTIVES: For the first time, brainstem auditory evoked potentials (BAEP) and very early auditory evoked potentials (EAEP) were investigated in 23 volunteers (mean age: 26.5 +/- 3.6 years) under resting conditions and during continuous and frequency modulated (2 Hz) laser stimulation in the external auditory meatus. METHODS: Using a new ear adapter, the outer region of the auditory canal was stimulated with laser light (685 nm, 4 x 30-40 mW, duration: 10 minutes). RESULTS: The EAEPs were significantly changed during continuous (p=0.019), as well as frequency modulated (p=0.014) laser stimulation compared with control measurements. DISCUSSION: Physiologic alterations of inner ear mechanism such as extra-cerebral changes in conductance or stimulation-dependent depolarization processes in extra-cerebral regions of the auditory system could be possible explanations for the significant difference in measurement parameters.
- Find related publications in this database (using NLM MeSH Indexing)
- Adult -
- Audiometry, Evoked Response - methods
- Auditory Pathways - physiology
- Dose-Response Relationship, Radiation - physiology
- Ear Canal - innervation
- Evoked Potentials, Auditory, Brain Stem - radiation effects
- Female - radiation effects
- Humans - radiation effects
- Lasers - radiation effects
- Male - radiation effects
- Reaction Time - radiation effects
- Find related publications in this database (Keywords)
- brainstem auditory evoked potentials
- very early auditory evoked potentials
- laserneedle
- acupuncture
- tinnitus