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Conference Paper: Awareness of Absence and Absence of Awareness: Failures of Sensation and Attention
Title | Awareness of Absence and Absence of Awareness: Failures of Sensation and Attention |
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Authors | |
Issue Date | 2010 |
Publisher | The Vision Society of Japan (日本視覚学会). The Journal's web site is located at http://www.visionsociety.jp/vision.html |
Citation | The 6th Asia-Pacific Conference on Vision (APCV 2010), Taipei, Taiwan, 23-26 July 2010. In Vision, 2010, v. 22 n. suppl., p. 33, abstract no. 21.04 How to Cite? |
Abstract | Failure of conscious visual perception occurs under a range of circumstances. The causes and
processes leading to incidences of stimulus-blindness are poorly understood. Failure of conscious
report could be, for example, a consequence of reduction of the sensory signal or lack of attentional
access to sensory signals. When examining these phenomena one has the intuition that in some types
of invisibility, a target is phenomenally invisible (awareness of absence), whereas in other types of
manipulations, we do have a sense that we missed a target (absence of awareness). To distinguish
different causes leading to a failure of visual awareness, we employed a new measure, termed
subjective discriminability of invisibility (SDI) that measures whether confidences of reporting the
absence of a target are different for trials in which visual awareness was impaired (miss trials) from
those where no target was present (correct rejections). Targets misses were subjectively
indistinguishable from physical absence when contrast reduction, backward masking and flash
suppression were used. Confidence could be appropriately adjusted when dual task, attentional blink
and spatial uncertainty methods were employed. These results show that failure of visual perception
can be either a result of perceptual or attentional blindness depending on the circumstances under
which visual awareness was impaired. |
Description | Talk Session: Attention II |
Persistent Identifier | http://hdl.handle.net/10722/224270 |
ISSN |
DC Field | Value | Language |
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dc.contributor.author | Kanai, R | - |
dc.contributor.author | Walsh, V | - |
dc.contributor.author | Tseng, C | - |
dc.date.accessioned | 2016-03-30T09:20:38Z | - |
dc.date.available | 2016-03-30T09:20:38Z | - |
dc.date.issued | 2010 | - |
dc.identifier.citation | The 6th Asia-Pacific Conference on Vision (APCV 2010), Taipei, Taiwan, 23-26 July 2010. In Vision, 2010, v. 22 n. suppl., p. 33, abstract no. 21.04 | - |
dc.identifier.issn | 0917-1142 | - |
dc.identifier.uri | http://hdl.handle.net/10722/224270 | - |
dc.description | Talk Session: Attention II | - |
dc.description.abstract | Failure of conscious visual perception occurs under a range of circumstances. The causes and processes leading to incidences of stimulus-blindness are poorly understood. Failure of conscious report could be, for example, a consequence of reduction of the sensory signal or lack of attentional access to sensory signals. When examining these phenomena one has the intuition that in some types of invisibility, a target is phenomenally invisible (awareness of absence), whereas in other types of manipulations, we do have a sense that we missed a target (absence of awareness). To distinguish different causes leading to a failure of visual awareness, we employed a new measure, termed subjective discriminability of invisibility (SDI) that measures whether confidences of reporting the absence of a target are different for trials in which visual awareness was impaired (miss trials) from those where no target was present (correct rejections). Targets misses were subjectively indistinguishable from physical absence when contrast reduction, backward masking and flash suppression were used. Confidence could be appropriately adjusted when dual task, attentional blink and spatial uncertainty methods were employed. These results show that failure of visual perception can be either a result of perceptual or attentional blindness depending on the circumstances under which visual awareness was impaired. | - |
dc.language | eng | - |
dc.publisher | The Vision Society of Japan (日本視覚学会). The Journal's web site is located at http://www.visionsociety.jp/vision.html | - |
dc.relation.ispartof | Vision = 学会誌 | - |
dc.title | Awareness of Absence and Absence of Awareness: Failures of Sensation and Attention | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Tseng, C: ch_tseng@alumni.uci.edu | - |
dc.identifier.authority | Tseng, C=rp00640 | - |
dc.identifier.hkuros | 177453 | - |
dc.identifier.volume | 22 | - |
dc.identifier.issue | suppl. | - |
dc.identifier.spage | 33 | - |
dc.identifier.epage | 33 | - |
dc.publisher.place | Japan | - |
dc.identifier.issnl | 0917-1142 | - |