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

Author:

van Vugt Bram1ORCID,Dagnino Bruno1ORCID,Vartak Devavrat1ORCID,Safaai Houman23ORCID,Panzeri Stefano3ORCID,Dehaene Stanislas45ORCID,Roelfsema Pieter R.167ORCID

Affiliation:

1. Department of Vision and Cognition, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105 BA Amsterdam, Netherlands.

2. Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA.

3. Neural Computation Laboratory, Istituto Italiano di Tecnologia, 38068 Rovereto, Italy.

4. Cognitive Neuroimaging Unit, Commissariat à l’Énergie Atomique et aux Énergies Alternatives, Direction des Sciences du Vivant/Institut d’Imagerie Biomédicale, INSERM, NeuroSpin Center, Université Paris-Sud and Université Paris-Saclay, 91191 Gif-sur-Yvette, France.

5. Collège de France, 75005 Paris, France.

6. Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, Vrije Universiteit, Amsterdam, Netherlands.

7. Department of Psychiatry, Academic Medical Center, Amsterdam, Netherlands.

Abstract

Setting conscious perception alight What are the neuronal mechanisms that enable conscious perception? Why do some images remain subliminal? Van Vugt et al. trained monkeys to detect low-contrast images and compared neuronal activity in brain areas V1, V4, and the dorsolateral prefrontal cortex. Some stimuli made it into consciousness, and others were subliminal depending on their propagation, which can be variable for weak stimuli (see the Perspective by Mashour). Strongly propagated stimuli initiated a state in the higher brain areas called “ignition” that caused information about a brief stimulus to become sustained and broadcasted back through recurrent interactions between many brain areas. Science , this issue p. 537 ; see also p. 493

Funder

Canadian Institute for Advanced Research

Fondation Bertarelli

Horizon 2020 Framework Programme

FP7 Ideas: European Research Council

FP7 People: Marie-Curie Actions

Nederlandse Organisatie voor Wetenschappelijk Onderzoek

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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