Journal ArticleDOI
Empirical support for higher-order theories of conscious awareness
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This work defends the higher-order view against several major criticisms, such as prefrontal activity reflects attention but not awareness, and prefrontal lesion does not abolish awareness.About:
This article is published in Trends in Cognitive Sciences.The article was published on 2011-08-01. It has received 580 citations till now. The article focuses on the topics: Electromagnetic theories of consciousness & Empirical research.read more
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Attentional routes to conscious perception
Ana B. Chica,Paolo Bartolomeo +1 more
TL;DR: Evidence is shown that distinct sorts of spatial attention can have different effects on visual conscious perception, and Fronto-parietal networks important for spatial attention constitute plausible neural substrates for the interactions between exogenous spatial attention and conscious perception.
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Using Neuroscience to Help Understand Fear and Anxiety: A Two-System Framework.
Joseph E. LeDoux,Daniel S. Pine +1 more
TL;DR: It is argued that failure to recognize and consistently emphasize a distinction between circuits underlying two classes of responses elicited by threats has impeded progress in understanding fear and anxiety disorders and hindered attempts to develop more effective pharmaceutical and psychological treatments.
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A signal detection theoretic approach for estimating metacognitive sensitivity from confidence ratings.
TL;DR: The measure meta-d', which reflects how much information, in signal-to-noise units, is available for metacognition, is called, and is found that subjects' metacognitive sensitivity was close to, but significantly below, optimality.
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Confidence in value-based choice
Benedetto De Martino,Benedetto De Martino,Stephen M. Fleming,Stephen M. Fleming,Stephen M. Fleming,Neil Garrett,Raymond J. Dolan +6 more
TL;DR: These findings provide a mechanistic link between noise in value comparison and metacognitive awareness of choice, enabling us both to want and to express knowledge of what the authors want.
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Conscious Processing and the Global Neuronal Workspace Hypothesis.
George A. Mashour,Pieter R. Roelfsema,Pieter R. Roelfsema,Jean-Pierre Changeux,Jean-Pierre Changeux,Jean-Pierre Changeux,Stanislas Dehaene,Stanislas Dehaene +7 more
TL;DR: The GNW hypothesis proposes that, in the conscious state, a non-linear network ignition associated with recurrent processing amplifies and sustains a neural representation, allowing the corresponding information to be globally accessed by local processors.
References
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Prefrontal modulation of visual processing in humans
TL;DR: This work provides anatomical, electrophysiological and behavioral evidence that prefrontal cortex regulates neuronal activity in extrastriate cortex during visual discrimination and provides evidence for intrahemispheric prefrontal modulation of visual processing.
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Internally generated preactivation of single neurons in human medial frontal cortex predicts volition
TL;DR: A computational model whereby volition emerges once a change in internally generated firing rate of neuronal assemblies crosses a threshold is implemented, whereby a population of 256 SMA neurons is sufficient to predict in single trials the impending decision to move with accuracy greater than 80% already 700 ms prior to subjects' awareness.
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Psychophysical magic : rendering the visible 'invisible'
Chai-Youn Kim,Randolph Blake +1 more
TL;DR: This article describes and assesses visual phenomena involving dissociation of physical stimulation and conscious awareness: degraded stimulation, visual masking, visual crowding, bistable figures, binocular rivalry, motion-induced blindness, inattentional blindness, change blindness and attentional blink.
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Theta-burst transcranial magnetic stimulation to the prefrontal cortex impairs metacognitive visual awareness.
TL;DR: It is found that transcranial magnetic stimulation impaired subjects' ability to discriminate between correct and incorrect stimulus judgments, which suggests that activations in the prefrontal cortex in brain imaging experiments on visual awareness may reflect a critical metacognitive process.
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Rewards Evoke Learning of Unconsciously Processed Visual Stimuli in Adult Humans
TL;DR: Results show that visual learning can be formed in human adults through stimulus-reward pairing in the absence of a task and without awareness of the stimulus presentation or reward contingencies.