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Attention, Awareness, and the Triangular Circuit

LaBerge1

  • 1Department of Cognitive Sciences, University of California, Irvine, Irvine, California, 92697

Consciousness and Cognition
|June 1, 1997
PubMed
Summary
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Attention involves a triangular circuit connecting cortical, thalamic, and prefrontal brain regions. Awareness requires this attention plus self-representation, potentially involving body or memory networks.

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Brain Function

Background:

  • Attention is crucial for cognitive processing.
  • Understanding the neural basis of attention and awareness is a key challenge in neuroscience.

Purpose of the Study:

  • To propose a neural model for attention and awareness.
  • To delineate the brain regions and circuits involved in attentional processes and conscious awareness.

Main Methods:

  • Theoretical modeling based on existing neuroscientific knowledge.
  • Integration of data from experiments on neuronal functions in relevant brain structures.

Main Results:

  • Attention to objects involves a triangular circuit: cortical (expression), thalamic (enhancement), and prefrontal (control) regions.

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  • Awareness requires attention to objects plus attention to self-representation, possibly involving body landscape or autobiographical memory networks.

    • Conclusions:

    • The proposed triangular circuit model is consistent with current brain structure and function data.
    • Attention to self also appears to operate via a triangular circuit, integrating with object attention for awareness.