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Related Concept Videos

Association Areas of the Cortex

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,...

Motor and Sensory Areas of the Cortex

Motor and Sensory Areas of the Cortex

The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex.

Somatosensory, Motor, and Association Cortex

Somatosensory, Motor, and Association Cortex

The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at the...

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Related Experiment Video

Updated: Jun 20, 2026

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

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

Published on: March 18, 2019

Cortical contributions to saccadic suppression.

George Chahine¹, Bart Krekelberg

¹Center for Molecular and Behavioral Neuroscience, Rutgers University, Newark, New Jersey, United States of America.

|September 5, 2009

Summary

This summary is machine-generated.

Saccadic suppression, which stabilizes vision during eye movements, involves higher brain areas. This finding challenges the idea that only the Lateral Geniculate Nucleus (LGN) is responsible for this visual processing.

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Related Experiment Videos

Last Updated: Jun 20, 2026

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Published on: March 18, 2019

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Area of Science:

Neuroscience
Visual Perception
Ophthalmology

Background:

Visual stability is maintained by saccadic suppression, a reduction in sensitivity during eye movements.
The neural basis of saccadic suppression is not fully understood, with the Lateral Geniculate Nucleus (LGN) previously hypothesized as a key site.

Purpose of the Study:

To investigate the neural mechanisms underlying saccadic suppression.
To determine the role of the LGN and potentially higher cortical areas in saccadic suppression.

Main Methods:

Experimental manipulation of background luminance in one visual hemifield.
Measuring the effect on saccadic suppression of a target presented in the contralateral hemifield.

Main Results:

Saccadic suppression of a right visual hemifield target intensified with increased left visual hemifield background luminance.
This inter-hemifield interaction suggests a mechanism beyond the LGN, which processes only one hemifield.

Conclusions:

Saccadic suppression involves interactions between visual hemifields.
Higher-level cortical processing, not solely LGN activity, is implicated in saccadic suppression due to observed hemifield interactions.