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The Visual (Un)Conscious and Its (Dis)ContentsA microtemporal approach$
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Bruno G. Breitmeyer

Print publication date: 2014

Print ISBN-13: 9780198712237

Published to Oxford Scholarship Online: August 2014

DOI: 10.1093/acprof:oso/9780198712237.001.0001

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Visual consciousness of things past

Visual consciousness of things past

(p.121) Chapter 7 Visual consciousness of things past
The Visual (Un)Conscious and Its (Dis)Contents

Bruno G. Breitmeyer

Oxford University Press

Visual processing of a stimulus can be sustained for brief periods after the stimulus has been presented. Consequently, various types of visual short-term memories play an important role in post-stimulus processing. Traditionally these memories have been distinguished in terms of iconic memory and visual working memory. The former, characterized by a relatively brief duration and a high informational content, can be further divided into an early visible-persistence stage and a subsequent informational-persistence stage. In contrast to iconic memory, the visual working memory is characterized by more limited informational content and by a duration of up to several seconds. This traditional approach is elaborated to include intermediate memories. The three stages of processing find counterparts in recent studies of brain dynamics underlying conscious processing, and the dynamics of the attentional blink.

Keywords:   post-stimulus processing, iconic memory, visual short-term memories, visual working memory, attentional blink

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