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Abstract

Attention and awareness are two tightly coupled processes that have been the subject of the same enduring debate: Are they allocated in a discrete or in a graded fashion? Using the attentional blink paradigm and mixture-modeling analysis, we show that awareness arises at central stages of information processing in an all-or-none manner. Manipulating the temporal delay between two targets affected subjects’ likelihood of consciously perceiving the second target, but did not affect the precision of its representation. Furthermore, these results held across stimulus categories and paradigms, and they were dependent on attention having been allocated to the first target. The findings distinguish the fundamental contributions of attention and awareness at central stages of visual cognition: Conscious perception emerges in a quantal manner, with attention serving to modulate the probability that representations reach awareness.

Keywords

attention consciousness cognitive processes

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References

Anderson

D. E.

Awh

(2012). The plateau in mnemonic resolution across large set sizes indicates discrete resource limits in visual working memory. Attention, Perception, & Psychophysics, 74, 891–910. doi:10.3758/s13414-012-0292-1

Baars

B. J.

(2005). Global workspace theory of consciousness: Toward a cognitive neuroscience of human experience. Progress in Brain Research, 150, 45–53.

Bar

Tootell

R. B.

Schacter

D. L.

Greve

D. N.

Fischl

Mendola

J. D.

. . . Dale

A. M.

(2001). Cortical mechanisms specific to explicit visual object recognition. Neuron, 29, 529–535.

Bays

P. M.

Catalao

R. F. G.

Husain

(2009). The precision of visual working memory is set by allocation of a shared resource. Journal of Vision, 9(10), Article 7. Retrieved from http://www.journalofvision.org/content/9/10/7.full

Chun

M. M.

Potter

M. C.

(1995). A two-stage model for multiple target detection in rapid serial visual presentation. Journal of Experimental Psychology: Human Perception and Performance, 21, 109–127.

Clifford

C. W. G.

Arabzadeh

Harris

J. A.

(2008). Getting technical about awareness. Trends in Cognitive Sciences, 12, 54–58. doi:10.1016/j.tics.2007.11.009

Curby

K. M.

Gauthier

(2007). A visual short-term memory advantage for faces. Psychonomic Bulletin & Review, 14, 620–628.

Dehaene

Changeux

J. P.

Naccache

Sackur

Sergent

(2006). Conscious, preconscious, and subliminal processing: A testable taxonomy. Trends in Cognitive Sciences, 10, 204–211.

Dux

P. E.

Marois

(2009). The attentional blink: A review of data and theory. Attention, Perception, & Psychophysics, 71, 1683–1700. doi:10.3758/APP.71.8.1683

10.

Eng

H. Y.

Chen

Jiang

(2005). Visual working memory for simple and complex visual stimuli. Psychonomic Bulletin & Review, 12, 1127–1133.

11.

Fougnie

Asplund

C. L.

Marois

(2010). What are the units of storage in visual working memory? Journal of Vision, 10(12), Article 27. Retrieved from http://www.journalofvision.org/content/10/12/27.full

12.

Fougnie

Suchow

J. W.

Alvarez

G. A.

(2012). Variability in the quality of visual working memory. Nature Communications, 3, Article 1229. Retrieved from http://www.nature.com/ncomms/journal/v3/n11/full/ncomms2237.html

13.

Hannula

D. E.

Simons

D. J.

Cohen

N. J.

(2005). Imaging implicit perception: Promise and pitfalls. Nature Reviews Neuroscience, 6, 247–255.

14.

Liu

Abrams

Carrasco

(2009). Voluntary attention enhances contrast appearance. Psychological Science, 20, 354–362. doi:10.1111/j.1467-9280.2009.02300.x

15.

Nieuwenhuis

de Kleijn

(2011). Consciousness of targets during the attentional blink: A gradual or all-or-none dimension? Attention, Perception, & Psychophysics, 73, 364–373. doi:10.3758/s13414-010-0026-1

16.

Nieuwenstein

Van der Burg

Theeuwes

Wyble

Potter

(2009). Temporal constraints on conscious vision: On the ubiquitous nature of the attentional blink. Journal of Vision, 9(9), Article 18. Retrieved from http://www.journalofvision.org/content/9/9/18.full

17.

Overgaard

Rote

Mouridsen

Ramsøy

T. Z.

(2006). Is conscious perception gradual or dichotomous? A comparison of report methodologies during a visual task. Consciousness and Cognition, 15, 700–708.

18.

Quiroga

R. Q.

Mukamel

Isham

E. A.

Malach

Fried

(2008). Human single-neuron responses at the threshold of conscious recognition. Proceedings of the National Academy of Sciences, USA, 105, 3599–3604. doi:10.1073/pnas.0707043105

19.

Raymond

J. E.

Shapiro

K. L.

Arnell

K. M.

(1992). Temporary suppression of visual processing in an RSVP task: An attentional blink? Journal of Experimental Psychology: Human Perception and Performance, 18, 849–860.

20.

Reeves

Sperling

(1986). Attention gating in short-term visual memory. Psychological Review, 93, 180–206.

21.

Reynolds

J. H.

Chelazzi

(2004). Attentional modulation of visual processing. Annual Review of Neuroscience, 27, 611–647.

22.

Sergent

Dehaene

(2004). Is consciousness a gradual phenomenon? Evidence for an all-or-none bifurcation during the attentional blink. Psychological Science, 15, 720–728.

23.

Seth

A. K.

Dienes

Cleeremans

Overgaard

Pessoa

(2008). Measuring consciousness: Relating behavioural and neurophysiological approaches. Trends in Cognitive Sciences, 12, 314–321.

24.

Todd

J. J.

Han

S. W.

Harrison

Marois

(2011). The neural correlates of visual working memory encoding: A time-resolved fMRI study. Neuropsychologia, 49, 1527–1536. doi:10.1016/j.neuropsychologia.2011.01.040

25.

van den Berg

Shin

Chou

W. C.

George

W. J.

(2012). Variability in encoding precision accounts for visual short-term memory limitations. Proceedings of the National Academy of Sciences, USA, 109, 8780–8785.

26.

Visser

T. A.

Zuvic

S. M.

Bischof

W. F.

Di Lollo

(1999). The attentional blink with targets in different spatial locations. Psychonomic Bulletin & Review, 6, 432–436.

27.

Vogel

E. K.

Woodman

G. F.

Luck

S. J.

(2006). The time course of consolidation in visual working memory. Journal of Experimental Psychology: Human Perception and Performance, 32, 1436–1451.

28.

Vul

Hanus

Kanwisher

(2009). Attention as inference: Selection is probabilistic; responses are all-or-none samples. Journal of Experimental Psychology: General, 138, 546–560. doi:10.1037/a0017352

29.

Ward

Duncan

Shapiro

(1996). The slow time-course of visual attention. Cognitive Psychology, 30, 79–109.

30.

Zhang

Luck

S. J.

(2008). Discrete fixed-resolution representations in visual working memory. Nature, 453, 233–235.

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The Attentional Blink Reveals the Probabilistic Nature of Discrete Conscious Perception

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