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Related Concept Videos

Association Areas of the Cortex01:21

Association Areas of the Cortex

Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.

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Related Experiment Video

Updated: Jul 23, 2026

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example
08:45

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

Published on: October 24, 2012

Spatial Attention Reduces Burstiness in Macaque Visual Cortical Area MST.

Cheng Xue1, Daniel Kaping1,2, Sonia Baloni Ray1,3

  • 1Cognitive Neuroscience Laboratory, German Primate Center, Goettingen 37077, Germany.

Cerebral Cortex (New York, N.Y. : 1991)
|April 3, 2017
PubMed
Summary

Spatial attention reduces neural burstiness in the medial superior temporal area (MST), a key motion-processing region. This effect is separate from firing rate changes, suggesting distinct mechanisms for spatial attention.

Keywords:
attentionburstinessmonkey neurophysiologyvisual cortex

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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

Published on: March 18, 2019

Area of Science:

  • Neuroscience
  • Visual processing
  • Primate brain

Background:

  • Visual attention influences neural firing rates in primate cortical areas.
  • Spatial attention in V4 reduces neural burstiness, with a model proposing a unified mechanism for firing rate and burstiness changes.
  • It remains unclear if spatial attention's burstiness reduction extends to other visual areas or attentional types.

Purpose of the Study:

  • To investigate the effect of spatial and feature-based attention on neural burstiness in the medial superior temporal area (MST).
  • To test if burstiness reduction by spatial attention is a widespread phenomenon.
  • To determine if firing rate enhancement and burstiness reduction share common mechanisms.

Main Methods:

  • Recorded single-neuron activity in the MST of two rhesus monkeys.
  • Monkeys performed a task requiring both spatial and feature-based attention.
  • Analyzed neural firing rate and spike train burstiness under different attentional conditions.

Main Results:

  • Spatial attention in MST significantly reduced neural burstiness, independent of firing rate changes.
  • Feature-based attention increased firing rate but did not significantly alter burstiness.
  • Burstiness reduction is a widespread effect of spatial attention, not limited to V4.

Conclusions:

  • Spatial attention's effect on neural burstiness is a general mechanism across different visual areas (e.g., MST).
  • The mechanisms driving firing rate enhancement and burstiness reduction under spatial attention are likely distinct.
  • The findings challenge a recent model suggesting a single mechanism underlies both effects.