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Apical dendrite activity in cognition and consciousness [An article from: Consciousness and Cognition] | ![Apical dendrite activity in cognition and consciousness [An article from: Consciousness and Cognition]](http://ecx.images-amazon.com/images/I/41W8KQ8KMHL._SL160_.jpg)
 enlarge | Author: D. Laberge
Publisher: Elsevier
Buy New: $14.95
Format: Html
Media: Digital
Pages: 22
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Product Description
This digital document is a journal article from Consciousness and Cognition, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
The ongoing steady nature of consciousness in everyday life implies that the underlying neural activity possesses a high level of stability. The prolonged cognitive events of sustained attention, imagery, and working memory also imply high stability of underlying neural activity. This paper proposes that stabilization of neural activity is produced by apical dendrite activity in pyramidal neurons within recurrent corticothalamic circuits, and proposes that the wave activities of apical dendrites that stabilize ongoing activity constitute the subjective impressions of an attended object and the entire sensory background. The cortical minicolumn, as the functional unit of the cortex, is separated into an axis consisting of layer 5 pyramidal neurons and a surrounding shell consisting of layer 2/3 pyramidal neurons. It is proposed that apical dendrites of the axis generate sensory impressions, and basal dendrites of the shell process the brief-lasting input-output identifications of objects that give rise to ideas.
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