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Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example

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Neural Signatures of Flexible Temporal Orienting under Spatial and Motor Uncertainty.

Yi Gao¹, Irene Echeverria-Altuna^1,2, Sage E P Boettcher³

¹Yale University.

Journal of Cognitive Neuroscience

|March 6, 2026

Summary

Temporal expectations improve visual task performance by influencing target selection and decision-making stages. This study used electroencephalography (EEG) to reveal how temporal attention impacts neural processing without spatial certainty.

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Area of Science:

Cognitive Neuroscience
Visual Attention Research

Background:

Temporal expectations enhance visual performance, but neural mechanisms are unclear.
Temporal orienting of attention influences stimulus processing stages.

Purpose of the Study:

Investigate neural mechanisms of temporal attention in visual processing.
Determine how temporal predictability and relevance affect stimulus processing stages.
Examine electroencephalography (EEG) correlates of temporal attention.

Main Methods:

EEG recording during a visual identification task.
Manipulation of target relevance and temporal predictability.
Analysis of event-related potentials (ERPs) including N2pc, lateralized readiness potential, and P300.

Main Results:

Behavioral improvements linked to flexible use of temporal expectations.
Contingent negative variation (CNV) modulated by temporal predictability.
Target relevance modulated ERPs at multiple processing stages (N2pc, LRP, P300).
P300 uniquely modulated by temporal predictability.

Conclusions:

Temporal attention impacts multiple stimulus processing stages via target relevance and predictability.
Neural mechanisms involve modulation of target selection, motor preparation, and decision-making.
Temporal orienting enhances goal-relevant processing even without spatial or motor certainty.