Predicting the Stream of Consciousness from Activity in Human Visual Cortex

  title={Predicting the Stream of Consciousness from Activity in Human Visual Cortex},
  author={John-Dylan Haynes and Geraint Rees},
  journal={Current Biology},

Figures from this paper

Early Visual Responses Predict Conscious Face Perception within and between Subjects during Binocular Rivalry
The work demonstrates that the neural correlates of particular conscious contents are highly consistent in time and space within individuals and that these correlates are shared to some extent between individuals.
Subjective visual perception: from local processing to emergent phenomena of brain activity
The most recent results from local activity recordings are reviewed and the potential role of effective, correlated interactions during perceptual awareness is discussed, suggesting the dynamics of functional connectivity patterns on a mesoscopic and macroscopic level could be critical for conscious perception.
Visual Cortex Allows Prediction of Perceptual States during Ambiguous Structure-From-Motion
During perceptual rivalry, neural correlates of visual awareness can be found in retinotopic visual cortex, MT+, and parietal cortex and it is argued that the organization of specific motion-sensitive neurons creates detectable biases in the preferred direction selectivity of voxels, allowing prediction of perceptual states.
Local field potential reflects perceptual suppression in monkey visual cortex
Electrophysiological findings suggest that low-frequency LFP power in early cortical processing is more closely related to the representation of stimulus visibility than is spiking or higher frequency LFP activity.
Seeing Invisible Motion: A Human fMRI Study
Activity in early visual areas predicts interindividual differences in binocular rivalry dynamics
It is demonstrated that retinotopic representations in early visual areas play a role in the dynamics of perceptual alternations during BR.
Predicting perceptual suppression from local field potential in visual cortex
How reliably the population responses could determine the perceptual states and what the roles of different areas in visual cortex played during suppression were investigated were investigated.
Perceptual experience modulates cortical circuits involved in visual awareness
It is suggested that perceptual repetition is associated with a facilitation of neural activity within and between percept‐specific visual networks and parietal networks involved in the temporal integration of perceptual information, thereby enhancing the stability of previously experienced percepts.


Decoding the visual and subjective contents of the human brain
It is found that ensemble fMRI signals in early visual areas could reliably predict on individual trials which of eight stimulus orientations the subject was seeing, when subjects had to attend to one of two overlapping orthogonal gratings.
Predicting the orientation of invisible stimuli from activity in human primary visual cortex
It is shown that even at conventional resolutions it is possible to use fMRI to obtain a direct measure of orientation-selective processing in V1 and to successfully predict which one of two oriented stimuli a participant was viewing, even when masking rendered that stimulus invisible.
Covariation of activity in visual and prefrontal cortex associated with subjective visual perception.
  • E. Lumer, G. Rees
  • Psychology, Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1999
Using functional MRI in humans exposed to bistable viewing conditions, subjective visual perception was related to covariation of activity in multiple extrastriate ventral, parietal, and prefrontal cortical areas, suggesting that functional interactions between visual and prefrontal cortex may contribute to conscious vision.
Activity changes in early visual cortex reflect monkeys' percepts during binocular rivalry
It is proposed that binocular rivalry arises through interactions between binocular neurons at several levels in the visual pathways, and that similar mechanisms may underlie other multistable perceptual states that occur when viewing ambiguous images.
Neural correlates of perceptual rivalry in the human brain.
The results suggest that frontoparietal areas play a central role in conscious perception, biasing the content of visual awareness toward abstract internal representations of visual scenes, rather than simply toward space.
Neuronal activity in human primary visual cortex correlates with perception during binocular rivalry
FMRI signals in early visual cortex were measured while subjects viewed rival dichoptic images of two different contrasts; the contrast difference served as a 'tag' for the neuronal representations of the two monocular images.
Binocular Rivalry and Visual Awareness in Human Extrastriate Cortex
Mental Imagery of Faces and Places Activates Corresponding Stimulus-Specific Brain Regions
Evidence that imagery and perception share common processing mechanisms is strengthened, and it is demonstrated that the specific brain regions activated during mental imagery depend on the content of the visual image.
Distributed and Overlapping Representations of Faces and Objects in Ventral Temporal Cortex
The functional architecture of the object vision pathway in the human brain was investigated using functional magnetic resonance imaging to measure patterns of response in ventral temporal cortex
A method for investigating binocular rivalry in real-time with the steady-state VEP