Semantic processing of crowded stimuli?

Huckauf, Anke; Knops, André; Nuerk, Hans‐Christoph; Hinckeldey, Klaus Willmes-von

doi:10.1007/s00426-008-0171-5

Cited by 19 publications

(19 citation statements)

References 27 publications

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“…In line with the results of Bahrami et al (2010), a robust impact of non-consciously perceived numerical information has been demonstrated in healthy participants with a variety of techniques beyond CFS, such as crowding (Huckauf, Knops, Nuerk, & Willmes, 2008) and masking (Dehaene et al, 1998;Naccache & Dehaene, 2001), as well as in patients suffering from hemineglect (Sackur et al, 2008). These results were taken as evidence for an elaborate processing of non-consciously presented numerical information.…”

Section: Unconscious Numerical Priming With Other Techniquessupporting

confidence: 77%

Exploring the boundary conditions of unconscious numerical priming effects with continuous flash suppression

Hesselmann

Darcy

Sterzer

et al. 2015

Consciousness and Cognition

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Section: Unconscious Numerical Priming With Other Techniquessupporting

confidence: 77%

Exploring the boundary conditions of unconscious numerical priming effects with continuous flash suppression

Hesselmann

Darcy

Sterzer

et al. 2015

Consciousness and Cognition

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“…Note that an account of a high-level mechanism for the crowding effect does not presuppose sequential processing whereby identification is followed by semantic extraction; the two processes may rely, as we have suggested, on different neural circuits. A recent study by Huckauf et al (2008) showed that crowded stimuli can give rise to semantic activation, but the researchers found semantic activation only for stimuli that were consciously identified. To our knowledge, our study is the first to demonstrate robust semantic activation for word primes that are so severely crowded that they cannot be consciously identified.…”

Section: Discussionmentioning

confidence: 96%

Semantic Priming From Crowded Words

Yeh

Cavanagh

2012

Psychol Sci

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Vision in a cluttered scene is extremely inefficient. This damaging effect of clutter, known as crowding, affects many aspects of visual processing (e.g., reading speed). We examined observers' processing of crowded targets in a lexical decision task, using single-character Chinese words that are compact but carry semantic meaning. Despite being unrecognizable and indistinguishable from matched nonwords, crowded prime words still generated robust semantic-priming effects on lexical decisions for test words presented in isolation. Indeed, the semantic-priming effect of crowded primes was similar to that of uncrowded primes. These findings show that the meanings of words survive crowding even when the identities of the words do not, suggesting that crowding does not prevent semantic activation, a process that may have evolved in the context of a cluttered visual environment.

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“…For example, given a crowded display ‘BTH’, an observer may respond ‘BHT’. Clearly some information about the target is preserved (perhaps even semantic information [40]), but the location information is lost.…”

Section: What Information Survives Crowding?mentioning

confidence: 99%

Visual crowding: a fundamental limit on conscious perception and object recognition

Whitney

Levi

2011

Trends in Cognitive Sciences

714

703

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Crowding, the inability to recognize objects in clutter, sets a fundamental limit on conscious visual perception and object recognition throughout most of the visual field. Despite how widespread and essential it is to object recognition, reading, and visually guided action, a solid operational definition of what crowding is has only recently become clear. The goal of this review is to provide a broad-based synthesis of the most recent findings in this area, to define what crowding is and is not, and to set the stage for future work that will extend crowding well beyond low-level vision. Here we define five diagnostic criteria for what counts as crowding, and further describe factors that both escape and break crowding. All of these lead to the conclusion that crowding occurs at multiple stages in the visual hierarchy. Dispelling the illusionWith regular flicks of the eye, we establish and maintain the illusion of a continuous highresolution representation of our visual environment. This compelling illusion is easy to dispel by trying to describe the details of objects in your peripheral visual fieldscrutinizing or trying to count objects in the visual periphery is impossible. This partly reflects the well-known decline in visual acuity in peripheral vision. However, the most widespread impediment to reading and object recognition in the periphery is the mysterious process known as crowding-the deleterious effect of clutter on peripheral object recognition. Objects that can be easily identified in isolation seem indistinct and jumbled in clutter (Fig. 1).Crowding is an essential bottleneck, setting limits on object perception, eye and hand movements, visual search, reading and perhaps other functions in peripheral, amblyopic and developing vision. Crowding impairs not only discrimination of object features and contours but the ability to recognize and respond appropriately to objects in clutter. Thus, studying © 2011 Elsevier Ltd. All rights reserved.Corresponding Author: Levi, D.M. (dlevi@berkeley.edu). Publisher's Disclaimer: This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.DML and DW contributed equally to this work. NIH Public Access Operationally defining crowdingThe significance of crowding is clear from phenomenological demonstrations of its power and ubiquity in natural scenes (Fig. 1). Ultimately, however, characterizing and understanding the mechanism(s) of crowding requires more than a phenomenological description. Recent work has established that there are several diagnostic criteria for crowding, and using these as converging evidence can help studies individuate and distingu...

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Semantic processing of crowded stimuli?

Cited by 19 publications

References 27 publications

Exploring the boundary conditions of unconscious numerical priming effects with continuous flash suppression

Exploring the boundary conditions of unconscious numerical priming effects with continuous flash suppression

Semantic Priming From Crowded Words

Visual crowding: a fundamental limit on conscious perception and object recognition

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