Passive auditory stimulation improves vision in hemianopia.
UNLABELLED: Techniques employed in rehabilitation of visual field disorders such as hemianopia are usually based on either visual or audio-visual stimulation and patients have to perform a training task. Here we present results from a completely different, novel approach that was based on passive un...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2012-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3362608?pdf=render |
| _version_ | 1818177917610360832 |
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| author | Jörg Lewald Martin Tegenthoff Sören Peters Markus Hausmann |
| author_facet | Jörg Lewald Martin Tegenthoff Sören Peters Markus Hausmann |
| author_sort | Jörg Lewald |
| collection | DOAJ |
| description | UNLABELLED: Techniques employed in rehabilitation of visual field disorders such as hemianopia are usually based on either visual or audio-visual stimulation and patients have to perform a training task. Here we present results from a completely different, novel approach that was based on passive unimodal auditory stimulation. Ten patients with either left or right-sided pure hemianopia (without neglect) received one hour of unilateral passive auditory stimulation on either their anopic or their intact side by application of repetitive trains of sound pulses emitted simultaneously via two loudspeakers. Immediately before and after passive auditory stimulation as well as after a period of recovery, patients completed a simple visual task requiring detection of light flashes presented along the horizontal plane in total darkness. The results showed that one-time passive auditory stimulation on the side of the blind, but not of the intact, hemifield of patients with hemianopia induced an improvement in visual detections by almost 100% within 30 min after passive auditory stimulation. This enhancement in performance was reversible and was reduced to baseline 1.5 h later. A non-significant trend of a shift of the visual field border toward the blind hemifield was obtained after passive auditory stimulation. These results are compatible with the view that passive auditory stimulation elicited some activation of the residual visual pathways, which are known to be multisensory and may also be sensitive to unimodal auditory stimuli as were used here. TRIAL REGISTRATION: DRKS00003577. |
| first_indexed | 2024-12-11T20:39:42Z |
| format | Article |
| id | doaj.art-35bd78b9e9f543f3ba513174696cd5c0 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-11T20:39:42Z |
| publishDate | 2012-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-35bd78b9e9f543f3ba513174696cd5c02022-12-22T00:51:33ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0175e3160310.1371/journal.pone.0031603Passive auditory stimulation improves vision in hemianopia.Jörg LewaldMartin TegenthoffSören PetersMarkus HausmannUNLABELLED: Techniques employed in rehabilitation of visual field disorders such as hemianopia are usually based on either visual or audio-visual stimulation and patients have to perform a training task. Here we present results from a completely different, novel approach that was based on passive unimodal auditory stimulation. Ten patients with either left or right-sided pure hemianopia (without neglect) received one hour of unilateral passive auditory stimulation on either their anopic or their intact side by application of repetitive trains of sound pulses emitted simultaneously via two loudspeakers. Immediately before and after passive auditory stimulation as well as after a period of recovery, patients completed a simple visual task requiring detection of light flashes presented along the horizontal plane in total darkness. The results showed that one-time passive auditory stimulation on the side of the blind, but not of the intact, hemifield of patients with hemianopia induced an improvement in visual detections by almost 100% within 30 min after passive auditory stimulation. This enhancement in performance was reversible and was reduced to baseline 1.5 h later. A non-significant trend of a shift of the visual field border toward the blind hemifield was obtained after passive auditory stimulation. These results are compatible with the view that passive auditory stimulation elicited some activation of the residual visual pathways, which are known to be multisensory and may also be sensitive to unimodal auditory stimuli as were used here. TRIAL REGISTRATION: DRKS00003577.http://europepmc.org/articles/PMC3362608?pdf=render |
| spellingShingle | Jörg Lewald Martin Tegenthoff Sören Peters Markus Hausmann Passive auditory stimulation improves vision in hemianopia. PLoS ONE |
| title | Passive auditory stimulation improves vision in hemianopia. |
| title_full | Passive auditory stimulation improves vision in hemianopia. |
| title_fullStr | Passive auditory stimulation improves vision in hemianopia. |
| title_full_unstemmed | Passive auditory stimulation improves vision in hemianopia. |
| title_short | Passive auditory stimulation improves vision in hemianopia. |
| title_sort | passive auditory stimulation improves vision in hemianopia |
| url | http://europepmc.org/articles/PMC3362608?pdf=render |
| work_keys_str_mv | AT jorglewald passiveauditorystimulationimprovesvisioninhemianopia AT martintegenthoff passiveauditorystimulationimprovesvisioninhemianopia AT sorenpeters passiveauditorystimulationimprovesvisioninhemianopia AT markushausmann passiveauditorystimulationimprovesvisioninhemianopia |