Human hearing enhanced by noise
Noise was traditionally regarded as a nuisance, which should be minimized if possible. However, recent research has shown that addition of an appropriate amount of noise can actually improve signal detection in a nonlinear system, an effect called stochastic resonance. While stochastic resonance has...
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| Published in | Brain research Vol. 869; no. 1; pp. 251 - 255 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
London
Elsevier B.V
30.06.2000
Amsterdam Elsevier New York, NY |
| Subjects | |
| Online Access | Get full text |
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| Abstract | Noise was traditionally regarded as a nuisance, which should be minimized if possible. However, recent research has shown that addition of an appropriate amount of noise can actually improve signal detection in a nonlinear system, an effect called stochastic resonance. While stochastic resonance has been described in a variety of physical and biological systems, its functional significance in human sensory systems remains mostly unexplored. Here we report psychophysical data showing that signal detection and discrimination can be enhanced by noise in human subjects whose hearing is evoked by either normal acoustic stimulation or electric stimulation of the auditory nerve or the brainstem. Our results suggest that noise is an integral part of the normal sensory process and should be added to auditory prostheses. |
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| AbstractList | Noise was traditionally regarded as a nuisance, which should be minimized if possible. However, recent research has shown that addition of an appropriate amount of noise can actually improve signal detection in a nonlinear system, an effect called stochastic resonance. While stochastic resonance has been described in a variety of physical and biological systems, its functional significance in human sensory systems remains mostly unexplored. Here we report psychophysical data showing that signal detection and discrimination can be enhanced by noise in human subjects whose hearing is evoked by either normal acoustic stimulation or electric stimulation of the auditory nerve or the brainstem. Our results suggest that noise is an integral part of the normal sensory process and should be added to auditory prostheses. Noise was traditionally regarded as a nuisance, which should be minimized if possible. However, recent research has shown that addition of an appropriate amount of noise can actually improve signal detection in a nonlinear system, an effect called stochastic resonance. While stochastic resonance has been described in a variety of physical and biological systems, its functional significance in human sensory systems remains mostly unexplored. Here we report psychophysical data showing that signal detection and discrimination can be enhanced by noise in human subjects whose hearing is evoked by either normal acoustic stimulation or electric stimulation of the auditory nerve or the brainstem. Our results suggest that noise is an integral part of the normal sensory process and should be added to auditory prostheses.Noise was traditionally regarded as a nuisance, which should be minimized if possible. However, recent research has shown that addition of an appropriate amount of noise can actually improve signal detection in a nonlinear system, an effect called stochastic resonance. While stochastic resonance has been described in a variety of physical and biological systems, its functional significance in human sensory systems remains mostly unexplored. Here we report psychophysical data showing that signal detection and discrimination can be enhanced by noise in human subjects whose hearing is evoked by either normal acoustic stimulation or electric stimulation of the auditory nerve or the brainstem. Our results suggest that noise is an integral part of the normal sensory process and should be added to auditory prostheses. |
| Author | Fu, Qian-Jie Zeng, Fan-Gang Morse, Robert |
| Author_xml | – sequence: 1 givenname: Fan-Gang surname: Zeng fullname: Zeng, Fan-Gang email: fzeng@hesp.umd.edu organization: Department of Hearing and Speech Sciences and Program in Neuroscience and Cognitive Science, University of Maryland, College Park, MD 20742, USA – sequence: 2 givenname: Qian-Jie surname: Fu fullname: Fu, Qian-Jie organization: House Ear Institute, 2100 West Third Street, Los Angeles, CA 90057, USA – sequence: 3 givenname: Robert surname: Morse fullname: Morse, Robert organization: MacKay Institute of Communication and Neuroscience, School of Life Sciences, Keele University, Keele, Staffordshire, ST5 5BG, UK |
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| Keywords | Hearing Auditory Stochastic resonance Noise Brainstem implant Sensory systems Cochlear implant Frequency discrimination Threshold Human |
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| SubjectTerms | Adult Auditory Auditory Pathways - physiology Auditory Threshold - physiology Biological and medical sciences Brainstem implant Cochlear implant Cochlear Implants Cochlear Nerve - physiology Cochlear Nucleus - physiology Ear and associated structures. Auditory pathways and centers. Hearing. Vocal organ. Phonation. Sound production. Echolocation Electric Stimulation Evoked Potentials, Auditory, Brain Stem - physiology Female Frequency discrimination Fundamental and applied biological sciences. Psychology Hearing Hearing - physiology Humans Male Noise Signal Detection, Psychological - physiology Stochastic resonance Threshold Vertebrates: nervous system and sense organs |
| Title | Human hearing enhanced by noise |
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