Cerveau et conscience


Research center

45 rue d’Ulm
75230 Paris
Marc Mézard


ED158 ED 474
Université Paris Descartes - Université Pierre et Marie Curie


Laboratoire de Sciences Cognitives et Psycholinguistique
UMR 8554
Institut d'Etudes Cognitives

Mots clefs

Brain function
Available to host a PhD student


#Bastian, M., #Sackur, J. (2013). Mind-Wandering at the fingertips: automatic parsing of subjective states based on response time variability. Frontiers in Psychology, 4, 1 -- 11.

#Kouider, S., Stahlhut, C., Gelskov, S., #Barbosa, L, de Gardelle, V., Dutat, M., Dehaene, S., & Dehaene-Lambertz, G. (2013).A neural marker of perceptual consciousness in infants. Science, 50(14), 3736?3744.

#Sackur, J.(2013). Two dimensions of visibility revealed by multidimensional scaling of metacontrast, Cognition, (in press).

Faivre, N., Charron, S., Roux, P., Lehericy, S., & #Kouider, S. (2012). Nonconscious Emotional Processing Involves Distinct Neural Pathways for Pictures and Videos. Neuropsychologia, 50(14), 3736?3744.

Faivre, N., Berthet, V. & #Kouider, S. (2012). Nonconscious influences from emotional faces: a comparison of visual crowding, masking, and continuous flash suppression. Frontiers in Consciousness Research, 3, 1?13.

Fields of research

Cognitive neurosciences / neuropsychology /neuroeconomy

Research Theme

Our team is composed of cognitive scientists working on the neurobiological and psychological foundations of consciousness. We are especially interested in how conscious and unconscious processes differ at both the psychological and neural level. We use various behavioral methods (e.g., priming, psychophysics) and brain imaging techniques (e.g., fMRI, EEG) to study how humans process things unconsciously (e.g., as in situations of subliminal perception, sleep or hypnosis) and compare it to situations of conscious processing. This approach offers the opportunity to understand the limits and extents of unconscious processes, the functional and physiological specificity of consciousness and, ultimately, why we need to be conscious at all.

Our research follows four main axes:
1. Unconscious perception : We study how the human brain processes information in the absence of consciousness. Our research uses unconscious stimulation methods such as subliminal priming, visual masking and crowding. We also study the depth of processing and learning capacities during sleep.
2. Perceptual awareness : Our research focuses on the neurocognitive mechanisms underlying conscious access, and the transition from unconscious contents to the conscious content. We are interested in taxonomy of states of consciousness, and in particular the possibility of an intermediate form called partial consciousness, engaging specific bayesian mechanisms.
3. Consciousness in infants : We study the development of consciousness in the babies, as well as its links with the parallel development of language and learning mechanisms, and metacognition.
4. Introspection: We study introspection, which corresponds to a reflexive form of consciousness, as well as its neural basis.

Lab rotation

Brain and (un)consciousness

Chercheur responsable: 



1 September 2016 - 30 June 2017

Date limite de candidature: 

1 April 2016

Lab rotation proposal

~ Sep-Dec 2016 ~ Jan-March 2017 ~ Apr-June 2017


Our lab explores the neural mechanisms of consciousness through 2 types of projects: 1) Brain responsiveness and learning during sleep 2) Development of higher-order cognitive mechanisms associated with consciousness (attention, decision-marking, confidence, etc) in the infant brain.

Address:  Laboratoire de Sciences Cognitives et Psycholinguistique - Ecole Normale Supérieure - 29, rue d'Ulm 75005 Paris 

Phone number: +33 1 44 32 26 22 ; Email: sid.kouider@ens.fr