@article{Pulvermuller1999Words-10734,
  year={1999},
  title={Words in the brain s language},
  number={2},
  volume={22},
  journal={Behavioral and Brain Sciences},
  pages={253--279},
  author={Pulvermüller, Friedemann}
}

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    <dcterms:bibliographicCitation>First publ. in: Behavioral and Brain Sciences 22 (1999), 2, pp. 253-279</dcterms:bibliographicCitation>
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    <dcterms:abstract xml:lang="eng">If the cortex is an associative memory, strongly connected cell assemblies will form when neurons in different cortical areas are frequently active at the same time. The cortical distributions of these assemblies must be a consequence of where in the cortex correlated neuronal activity occurred during learning. An assembly can be considered a functional unit exhibiting activity states such as full activation (ignition) after appropriate sensory stimulation (possibly related to perception) and continuous reverberation of excitation within the assembly (a putative memory process). This has implications for cortical topographies and activity dynamics of cell assemblies representing words. Cortical topographies of assemblies should be related to aspects of the meaning of the words they represent, and physiological signs of cell assembly ignition should be followed by possible indicators of reverberation. The following postulates are discussed in detail: (1) assemblies representing phonological word forms are strongly lateralized and distributed over perisylvian cortices; (2) assemblies representing highly abstract words, such as grammatical function words, are also strongly lateralized and restricted to these perisylvian regions; (3) assemblies representing concrete content words include additional neurons in both hemispheres; (4) assemblies representing words referring to visual stimuli include neurons in visual cortices; (5) assemblies representing words referring to actions include neurons in motor cortices. Two main sources of evidence are used for evaluating these proposals: (a) imaging studies aiming at localizing word processing in the brain, based on stimulus-triggered event-related potentials (ERP), positron emission tomography (PET) and functional magnetic resonance imaging (fMRI), and (b) studies of the temporal dynamics of fast activity changes in the brain, as revealed by high-frequency responses recorded in the electroencephalogram (EEG) and magnetoencephalogram (MEG). These data provide evidence for processing differences between words and matched meaningless pseudowords, and between word classes such as concrete content and abstract function words, and words evoking visual or motor associations. There is evidence for early word class-specific spreading of neuronal activity and for equally specific high-frequency responses occurring later. These results support a neurobiological model of language in the Hebbian tradition. Competing large-scale neuronal theories of language are discussed in the light of the summarized data. A final paragraph addresses neurobiological perspectives on the problem of serial order of words in syntactic strings.</dcterms:abstract>
    <dcterms:title>Words in the brain s language</dcterms:title>
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