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High-Level and Low-Level Awareness01:19

High-Level and Low-Level Awareness

Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...

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Related Experiment Video

Updated: Jun 16, 2026

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control
09:37

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control

Published on: July 5, 2015

Isolating the internal in endogenous attention.

Joseph B Hopfinger1, C Christine Camblin, Emily L Parks

  • 1Department of Psychology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3270, USA. hopfinger@unc.edu

Psychophysiology
|February 13, 2010
PubMed
Summary
This summary is machine-generated.

Self-initiated voluntary orienting activates the frontal-parietal network without cue stimuli. This study reveals hemispheric asymmetry in attentional control within healthy individuals, unlike previous cue-based research.

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Neuroimaging

Background:

  • Previous neuroimaging studies linked voluntary attentional control to a bilateral frontal-parietal network.
  • The use of cue stimuli in prior research may have confounded results with cue processing and voluntary orienting interactions.

Purpose of the Study:

  • To investigate the neural basis of self-initiated voluntary orienting, independent of cue stimuli.
  • To determine if voluntary attentional control exhibits hemispheric asymmetry in healthy subjects.

Main Methods:

  • Neuroimaging techniques were employed to observe brain activity.
  • Participants engaged in self-initiated voluntary orienting tasks without external cue stimuli.

Main Results:

  • Self-initiated voluntary orienting activated the frontal-parietal network.
  • Unlike symmetric activity seen in cued tasks, self-initiated shifts demonstrated hemispheric asymmetry.
  • The right hemisphere showed equal involvement in both visual fields, while the left hemisphere was biased towards the contralateral visual field.

Conclusions:

  • Voluntary attentional control exhibits hemispheric asymmetry, observable in healthy individuals through neuroimaging when self-initiated orienting is isolated.
  • This finding clarifies the role of the frontal-parietal network in voluntary attention and its lateralization.