The threshold for conscious report: Signal loss and response bias in visual and frontal cortex

Bram van Vugt; Bruno Dagnino; Devavrat Vartak; Houman Safaai; Stefano Panzeri; Stanislas Dehaene; Pieter R Roelfsema

doi:10.1126/science.aar7186

The threshold for conscious report

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The threshold for conscious report : Signal loss and response bias in visual and frontal cortex. / van Vugt, Bram; Dagnino, Bruno; Vartak, Devavrat; Safaai, Houman; Panzeri, Stefano; Dehaene, Stanislas; Roelfsema, Pieter R.

In: SCIENCE, Vol. 360, No. 6388, 04.05.2018, p. 537-542.

Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review

Harvard

van Vugt, B, Dagnino, B, Vartak, D, Safaai, H, Panzeri, S, Dehaene, S & Roelfsema, PR 2018, 'The threshold for conscious report: Signal loss and response bias in visual and frontal cortex', SCIENCE, vol. 360, no. 6388, pp. 537-542. https://doi.org/10.1126/science.aar7186

APA

van Vugt, B., Dagnino, B., Vartak, D., Safaai, H., Panzeri, S., Dehaene, S., & Roelfsema, P. R. (2018). The threshold for conscious report: Signal loss and response bias in visual and frontal cortex. SCIENCE, 360(6388), 537-542. https://doi.org/10.1126/science.aar7186

Vancouver

van Vugt B, Dagnino B, Vartak D, Safaai H, Panzeri S, Dehaene S et al. The threshold for conscious report: Signal loss and response bias in visual and frontal cortex. SCIENCE. 2018 May 4;360(6388):537-542. https://doi.org/10.1126/science.aar7186

Bibtex

@article{eb5135b264f64b71b2befe7c71e834a3,

title = "The threshold for conscious report: Signal loss and response bias in visual and frontal cortex",

abstract = "Why are some visual stimuli consciously detected, whereas others remain subliminal? We investigated the fate of weak visual stimuli in the visual and frontal cortex of awake monkeys trained to report stimulus presence. Reported stimuli were associated with strong sustained activity in the frontal cortex, and frontal activity was weaker and quickly decayed for unreported stimuli. Information about weak stimuli could be lost at successive stages en route from the visual to the frontal cortex, and these propagation failures were confirmed through microstimulation of area V1. Fluctuations in response bias and sensitivity during perception of identical stimuli were traced back to prestimulus brain-state markers. A model in which stimuli become consciously reportable when they elicit a nonlinear ignition process in higher cortical areas explained our results.",

keywords = "Animals, Consciousness/physiology, Frontal Lobe/physiology, Macaca mulatta, Male, Models, Neurological, Photic Stimulation, Visual Cortex/physiology, Visual Perception/physiology",

author = "{van Vugt}, Bram and Bruno Dagnino and Devavrat Vartak and Houman Safaai and Stefano Panzeri and Stanislas Dehaene and Roelfsema, {Pieter R}",

note = "Copyright {\textcopyright} 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.",

year = "2018",

month = may,

day = "4",

doi = "10.1126/science.aar7186",

language = "English",

volume = "360",

pages = "537--542",

journal = "SCIENCE",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "6388",

}

RIS

TY - JOUR

T1 - The threshold for conscious report

T2 - Signal loss and response bias in visual and frontal cortex

AU - van Vugt, Bram

AU - Dagnino, Bruno

AU - Vartak, Devavrat

AU - Safaai, Houman

AU - Panzeri, Stefano

AU - Dehaene, Stanislas

AU - Roelfsema, Pieter R

PY - 2018/5/4

Y1 - 2018/5/4

N2 - Why are some visual stimuli consciously detected, whereas others remain subliminal? We investigated the fate of weak visual stimuli in the visual and frontal cortex of awake monkeys trained to report stimulus presence. Reported stimuli were associated with strong sustained activity in the frontal cortex, and frontal activity was weaker and quickly decayed for unreported stimuli. Information about weak stimuli could be lost at successive stages en route from the visual to the frontal cortex, and these propagation failures were confirmed through microstimulation of area V1. Fluctuations in response bias and sensitivity during perception of identical stimuli were traced back to prestimulus brain-state markers. A model in which stimuli become consciously reportable when they elicit a nonlinear ignition process in higher cortical areas explained our results.

AB - Why are some visual stimuli consciously detected, whereas others remain subliminal? We investigated the fate of weak visual stimuli in the visual and frontal cortex of awake monkeys trained to report stimulus presence. Reported stimuli were associated with strong sustained activity in the frontal cortex, and frontal activity was weaker and quickly decayed for unreported stimuli. Information about weak stimuli could be lost at successive stages en route from the visual to the frontal cortex, and these propagation failures were confirmed through microstimulation of area V1. Fluctuations in response bias and sensitivity during perception of identical stimuli were traced back to prestimulus brain-state markers. A model in which stimuli become consciously reportable when they elicit a nonlinear ignition process in higher cortical areas explained our results.

KW - Animals

KW - Consciousness/physiology

KW - Frontal Lobe/physiology

KW - Macaca mulatta

KW - Male

KW - Models, Neurological

KW - Photic Stimulation

KW - Visual Cortex/physiology

KW - Visual Perception/physiology

U2 - 10.1126/science.aar7186

DO - 10.1126/science.aar7186

M3 - SCORING: Journal article

C2 - 29567809

VL - 360

SP - 537

EP - 542

JO - SCIENCE

JF - SCIENCE

SN - 0036-8075

IS - 6388

ER -