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Updated: May 11, 2026
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Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control
Published on: July 5, 2015
A functional hierarchy within the parietofrontal network in stimulus selection and attention control
Guilhem Ibos1, Jean-René Duhamel, Suliann Ben Hamed
1Centre de Neuroscience Cognitive, CNRS UMR 5229, 69675 Bron cedex, Université Claude Bernard Lyon 1, France.
Summary
Selective perception guides attention. The frontal eye field (FEF) maps cues to guide attention, while the lateral intraparietal area (LIP) processes intrinsic saliency, revealing distinct roles in the attention network.
Area of Science:
- Neuroscience
- Cognitive Science
- Visual Attention
Background:
- Perception is selective due to limited sensory processing capacity.
- The lateral intraparietal area (LIP) and frontal eye field (FEF) are implicated in visual attention but their distinct roles are unclear.
Purpose of the Study:
- To investigate the differential contributions of LIP and FEF to the control of voluntary attention.
- To elucidate the temporal dynamics and functional roles of LIP and FEF in attention guidance.
Main Methods:
- Recording neuronal activity in LIP and FEF of monkeys during a voluntary attention-orientation target-detection task.
- Analyzing neuronal responses based on stimulus saliency (intrinsic vs. extrinsic) and cue-instruction mapping.
- Utilizing latency analysis to determine the temporal order of information processing.
Main Results:
- Both LIP and FEF neurons encode behaviorally significant events.
- FEF plays a crucial role in mapping abstract cues to a spatial priority map for voluntary attention control.
- Stimulus identity and position coding precede attentional signal emergence in FEF.
- Intrinsic saliency is processed by LIP before FEF; extrinsic saliency is processed by FEF before LIP.
Conclusions:
- The parietofrontal attentional network likely involves recurrent processing of visual information.
- Exogenous attention processing predominates in the parietal cortex (LIP).
- Endogenous control of attention is primarily mediated by the frontal eye field (FEF).
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