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Working Memory 2.0

Miller, Earl K. ; Lundqvist, Mikael ; Bastos, André M.

Neuron (Cambridge, Mass.), 2018-10, Vol.100 (2), p.463-475 [Periódico revisado por pares]

United States: Elsevier Inc

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  • Título:
    Working Memory 2.0
  • Autor: Miller, Earl K. ; Lundqvist, Mikael ; Bastos, André M.
  • Assuntos: Animals ; bottom-up ; Brain - physiology ; cognition ; Cortex ; Executive function ; Firing pattern ; Humans ; Memory, Short-Term - physiology ; Models, Neurological ; Neurons ; Oscillations ; prefrontal cortex ; Short term memory ; Synaptic strength ; synchrony ; top-down ; working memory
  • É parte de: Neuron (Cambridge, Mass.), 2018-10, Vol.100 (2), p.463-475
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-3
    ObjectType-Review-2
  • Descrição: Working memory is the fundamental function by which we break free from reflexive input-output reactions to gain control over our own thoughts. It has two types of mechanisms: online maintenance of information and its volitional or executive control. Classic models proposed persistent spiking for maintenance but have not explicitly addressed executive control. We review recent theoretical and empirical studies that suggest updates and additions to the classic model. Synaptic weight changes between sparse bursts of spiking strengthen working memory maintenance. Executive control acts via interplay between network oscillations in gamma (30–100 Hz) in superficial cortical layers (layers 2 and 3) and alpha and beta (10–30 Hz) in deep cortical layers (layers 5 and 6). Deep-layer alpha and beta are associated with top-down information and inhibition. It regulates the flow of bottom-up sensory information associated with superficial layer gamma. We propose that interactions between different rhythms in distinct cortical layers underlie working memory maintenance and its volitional control. Miller et al. present a new model of working memory. Synaptic weight changes between sparse spiking help strengthen working memory maintenance. Interplay between alpha, beta, and gamma rhythms in different cortical layers provide an infrastructure for its volitional control.
  • Editor: United States: Elsevier Inc
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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