Knowledge Tree
ignition
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Protocol for testing global neuronal workspace and integrated ... journals.plos.org 6 facts
claimGlobal Neuronal Workspace Theory (GNWT) predicts increased functional connectivity between the prefrontal cortex (PFC), posterior parietal cortex (PPC), and sensory regions during ignition post-stimulus onset and offset.
claimCritics of Global Neuronal Workspace Theory (GNWT) argue that there is a lack of empirical data regarding the nature of the 'ignition' signal at the level of neurons.
claimGlobal Neuronal Workspace Theory (GNWT) suggests that a sudden, global 'ignition' signal occurs when new information enters the workspace, representing the moment of conscious access.
procedureThe researchers will use high-frequency stimulation, specifically 100 Hz, 200 µA, 400 µs biphasic pulses simultaneously applied across 16 stimulating electrode contacts, to perturb 'ignition' in the brain.
claimGlobal Neuronal Workspace Theory (GNWT) does not directly predict 'ignition' at the offset of a stimulus, as such an event is predicted to occur only if the participant is aware of the offset.
claimThe Global Neuronal Workspace Theory (GNWT) posits that "ignition," a phasic increase in neuronal activity, is necessary for conscious experience.
Fame in the Brain—Global Workspace Theories of Consciousness psychologytoday.com Oct 28, 2023 3 facts
claimIn Global Neuronal Workspace Theory, 'ignition' is the process where a broadcasted signal is amplified, prolonged, and shared with specialized modules, associated with a specific pattern of brain activity measurable by imaging and electrophysiology.
claimGlobal Neuronal Workspace Theory emphasizes the role of long-range loops between cortical and subcortical regions, linked by feedforward and feedback connections, which enable recurrent processing, ignition, and the amplification of signals across the network.
referenceSeth and Bayne summarized in a 2022 paper that there is empirical support for Global Workspace Theories (GWTs) from studies associating consciousness with neuronal signatures of ignition and long-distance information sharing.
Adversarial testing of global neuronal workspace and ... - Nature nature.com Apr 30, 2025 1 fact
claimGlobal Neuronal Workspace Theory (GNWT) predicts that neural activation (ignition) occurs following stimulus offset (0.3–0.5 s) independent of stimulus duration, with virtually no response in between.
An adversarial collaboration to critically evaluate theories of ... biorxiv.org Jun 26, 2023 1 fact
claimGlobal Neuronal Workspace Theory (GNWT) is challenged by the Cogitate Consortium's findings of a general lack of ignition at stimulus offset and limited representation of certain conscious dimensions in the prefrontal cortex.