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Aya Khalaf

7 papers in the library · 302 citations · publishing 2022-2026

Papers

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Neural mechanisms of awareness of action.

PNAS Nexus July 1, 2026 David S Jin, Oumayma Agdali, Taruna Yadav et al.

Awareness of action (AoA), or conscious awareness of an action just performed, is an important part of daily experience with major practical and ethical relevance, yet the neural mechanisms of AoA remain largely unknown. The main barrier to studying AoA is a lack of experimental paradigms to directly compare neural activity in aware versus unaware actions. Borrowing from the field of perceptual...

DOI: 10.1093/pnasnexus/pgag220 (opens in new tab) Full text (opens in new tab) Attention Consciousness Event-related potentials Perception +1

An open-access multi-site fMRI dataset for investigating conscious visual perception.

Scientific Data May 7, 2026 Aya Khalaf, David Richter, Yamil Vidal et al.

We present a functional magnetic resonance (fMRI) dataset collected as part of an adversarial collaboration aimed at arbitrating between the Global Neuronal Workspace theory (GNWT) and the Integrated Information Theory (IIT) of consciousness. Participants (N = 118) were presented with suprathreshold visual stimuli belonging to four different categories (faces, objects, letters, false fonts)...

Adversarial testing of global neuronal workspace and integrated information theories of consciousness.

Nature June 1, 2025 Oscar Ferrante, Urszula Gorska-Klimowska, Simon Henin et al. 94 citations

Different theories explain how subjective experience arises from brain activity1,2. These theories have independently accrued evidence, but have not been directly compared3. Here we present an open science adversarial collaboration directly juxtaposing integrated information theory (IIT)4,5 and global neuronal workspace theory (GNWT)6-10 via a theory-neutral consortium11-13. The theory...

DOI: 10.1038/s41586-025-08888-1 (opens in new tab) Full text (opens in new tab) Consciousness Brain research Visual perception Cognitive science

Shared subcortical arousal systems across sensory modalities during transient modulation of attention.

Neuroimage May 15, 2025 Aya Khalaf, Erick Lopez, Jian Li et al. 6 citations

Subcortical arousal systems are known to play a key role in controlling sustained changes in attention and conscious awareness. Recent studies indicate that these systems have a major influence on short-term dynamic modulation of visual attention, but their role across sensory modalities is not fully understood. In this study, we investigated shared subcortical arousal systems across sensory...

DOI: 10.1016/j.neuroimage.2025.121224 (opens in new tab) Full text (opens in new tab) Arousal Attention modulation Consciousness Subcortical networks +3

An adversarial collaboration to critically evaluate theories of consciousness

bioRxiv Preprint Server June 23, 2023 Oscar Ferrante, Urszula Gorska-Klimowska, Simon Henin et al. preprint

Different theories explain how subjective experience arises from brain activity1,2. These theories have independently accrued evidence, yet, confirmation bias and dependence on design choices hamper progress in the field3. Here, we present an open science adversarial collaboration which directly juxtaposes Integrated Information Theory (IIT)4,5 and Global Neuronal Workspace Theory (GNWT)6–10,...

An adversarial collaboration protocol for testing contrasting predictions of global neuronal workspace and integrated information theory

PLoS One February 10, 2023 Lucia Melloni, Liad Mudrik, Michael Pitts et al. 106 citations

The relationship between conscious experience and brain activity has intrigued scientists and philosophers for centuries. In the last decades, several theories have suggested different accounts for these relationships. These theories have developed in parallel, with little to no cross-talk among them. To advance research on consciousness, we established an adversarial collaboration between...

DOI: 10.1371/journal.pone.0268577 (opens in new tab) Consciousness Adversarial system Perception Workspace +6

Human visual consciousness involves large scale cortical and subcortical networks independent of task report and eye movement activity

Nature Communications November 29, 2022 Sharif I Kronemer, Mark Aksen, Julia Z. Ding et al. 96 citations

The full neural circuits of conscious perception remain unknown. Using a visual perception task, we directly recorded a subcortical thalamic awareness potential (TAP). We also developed a unique paradigm to classify perceived versus not perceived stimuli using eye measurements to remove confounding signals related to reporting on conscious experiences. Using fMRI, we discovered three major...