No disillusions in auditory extinction: perceiving a melody comprised of unperceived notes
The formation of coherent percepts requires grouping together spatio-temporally disparate sensory inputs. Two major questions arise: (1) is awareness necessary for this process; and (2) can non-conscious elements of the sensory input be grouped into a conscious perceptµ To address this ques...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2008-03-01
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| Series: | Frontiers in Human Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/neuro.09.015.2007/full |
| _version_ | 1819228785367580672 |
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| author | Leon Y Deouell Leon Y Deouell Diana Deutsch Donatella Scabini Nachum Soroker Robert T Knight |
| author_facet | Leon Y Deouell Leon Y Deouell Diana Deutsch Donatella Scabini Nachum Soroker Robert T Knight |
| author_sort | Leon Y Deouell |
| collection | DOAJ |
| description | The formation of coherent percepts requires grouping together spatio-temporally disparate sensory inputs. Two major questions arise: (1) is awareness necessary for this process; and (2) can non-conscious elements of the sensory input be grouped into a conscious perceptµ To address this question, we tested two patients suffering from severe left auditory extinction following right hemisphere damage. In extinction, patients are unaware of the presence of left side stimuli when they are presented simultaneously with right side stimuli. We used the ‘scale illusion’ to test whether extinguished tones on the left can be incorporated into the content of conscious awareness. In the scale illusion, healthy listeners obtain the illusion of distinct melodies, which are the result of grouping of information from both ears into illusory auditory streams. We show that the two patients were susceptible to the scale illusion while being consciously unaware of the stimuli presented on their left. This suggests that awareness is not necessary for auditory grouping and non-conscious elements can be incorporated into a conscious percept. |
| first_indexed | 2024-12-23T11:02:48Z |
| format | Article |
| id | doaj.art-5bb54fd1b75b41de87a23e4ee52bf0cc |
| institution | Directory Open Access Journal |
| issn | 1662-5161 |
| language | English |
| last_indexed | 2024-12-23T11:02:48Z |
| publishDate | 2008-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Human Neuroscience |
| spelling | doaj.art-5bb54fd1b75b41de87a23e4ee52bf0cc2022-12-21T17:49:35ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612008-03-01210.3389/neuro.09.015.2007152No disillusions in auditory extinction: perceiving a melody comprised of unperceived notesLeon Y Deouell0Leon Y Deouell1Diana Deutsch2Donatella Scabini3Nachum Soroker4Robert T Knight5Department of Psychology and Helen Wills Neuroscience Institute, University of CaliforniaDepartment of Psychology and Interdisciplinary Center for Neural Computation, The Hebrew University of JerusalemDepartment of Psychology, University of CaliforniaDepartment of Psychology and Helen Wills Neuroscience Institute, University of CaliforniaLoewenstein Rehabilitation Hospital and Sackler faculty of Medicine, Tel Aviv UniversityDepartment of Psychology and Helen Wills Neuroscience Institute, University of CaliforniaThe formation of coherent percepts requires grouping together spatio-temporally disparate sensory inputs. Two major questions arise: (1) is awareness necessary for this process; and (2) can non-conscious elements of the sensory input be grouped into a conscious perceptµ To address this question, we tested two patients suffering from severe left auditory extinction following right hemisphere damage. In extinction, patients are unaware of the presence of left side stimuli when they are presented simultaneously with right side stimuli. We used the ‘scale illusion’ to test whether extinguished tones on the left can be incorporated into the content of conscious awareness. In the scale illusion, healthy listeners obtain the illusion of distinct melodies, which are the result of grouping of information from both ears into illusory auditory streams. We show that the two patients were susceptible to the scale illusion while being consciously unaware of the stimuli presented on their left. This suggests that awareness is not necessary for auditory grouping and non-conscious elements can be incorporated into a conscious percept.http://journal.frontiersin.org/Journal/10.3389/neuro.09.015.2007/fullStreamingauditory scene analysisauditory extinctionimplicit processingscale illusionunilateral neglect |
| spellingShingle | Leon Y Deouell Leon Y Deouell Diana Deutsch Donatella Scabini Nachum Soroker Robert T Knight No disillusions in auditory extinction: perceiving a melody comprised of unperceived notes Frontiers in Human Neuroscience Streaming auditory scene analysis auditory extinction implicit processing scale illusion unilateral neglect |
| title | No disillusions in auditory extinction: perceiving a melody comprised of unperceived notes |
| title_full | No disillusions in auditory extinction: perceiving a melody comprised of unperceived notes |
| title_fullStr | No disillusions in auditory extinction: perceiving a melody comprised of unperceived notes |
| title_full_unstemmed | No disillusions in auditory extinction: perceiving a melody comprised of unperceived notes |
| title_short | No disillusions in auditory extinction: perceiving a melody comprised of unperceived notes |
| title_sort | no disillusions in auditory extinction perceiving a melody comprised of unperceived notes |
| topic | Streaming auditory scene analysis auditory extinction implicit processing scale illusion unilateral neglect |
| url | http://journal.frontiersin.org/Journal/10.3389/neuro.09.015.2007/full |
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