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global neuronal workspace

a variation of global workspace theory: a proposed cognitive architecture in which long-distance neurons connect multiple specialized processors into a neural computational space, synchronizing their individual signals and distributing them to the brain as a whole to produce a global transmission of information that is experienced as consciousness. According to the model, workspace neurons can sustain only a single global representation at a time, making the transition to consciousness an all-or-none occurrence that depends on attention: Neural activity must be robust and focused enough to trigger the large-scale and self-sustained synchronicity that elevates processing from subliminal to reportable. Although distributed throughout the brain, long-distance workspace neurons are particularly dense in the prefrontal cortex, anterior cingulate cortex, and parietal cortex. [developed by French cognitive neuroscientist Stanislas Dehaene (1965–  ), French neuroscientist Jean-Pierre Changeux (1936–  ), French neurologist Lionel Naccache (1969–  ), and colleagues]

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Psychology term of the day

May 26th 2024

pointing

pointing

n. a test in which the participant, with the eyes open, extends a forefinger and touches the forefingers of the examiner. Knowing the location of the examiner’s fingers, the participant should then be able to touch them with eyes closed. Failure to do so is called past-pointing.