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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,...
Motor and Sensory Areas of the Cortex01:14

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.
Vision01:24

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Anatomy of the Eyeball01:20

Anatomy of the Eyeball

The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle layer, the vascular tunic,...

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Updated: Jun 4, 2026

Functional Magnetic Resonance Imaging (fMRI) of the Visual Cortex with Wide-View Retinotopic Stimulation
07:11

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Published on: December 8, 2023

Highly selective visual receptive fields in mouse frontal cortex.

Anthony D Lien1, Bilal Haider1

  • 1Dept of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA, USA.

Biorxiv : the Preprint Server for Biology
|June 3, 2026
PubMed
Summary
This summary is machine-generated.

Researchers found that neurons in the mouse frontal cortex process visual spatial information, similar to the visual cortex. This feedforward processing extends directly into cognitive and motor regions.

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Last Updated: Jun 4, 2026

Functional Magnetic Resonance Imaging (fMRI) of the Visual Cortex with Wide-View Retinotopic Stimulation
07:11

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Published on: December 8, 2023

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Published on: February 3, 2015

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Visual System Research

Background:

  • Mammalian spatial information processing relies on feedforward activity and aligned receptive fields (RFs) across brain areas.
  • It is unclear if this spatial processing framework extends to frontal cortex cognitive areas that control sensory regions.

Purpose of the Study:

  • To investigate the presence and characteristics of visual spatial processing in the mouse frontal cortex.
  • To determine the hierarchical connectivity and causal role of visual cortex in frontal cortex visual responses.

Main Methods:

  • Surveyed neuronal activity in mouse frontal cortex (anterior cingulate and secondary motor areas).
  • Recorded neuronal responses to visual stimuli and measured receptive field properties.
  • Used optogenetic silencing of visual cortex to assess causal relationships.

Main Results:

  • Discovered low-latency, highly localized visual receptive fields (RFs) in frontal cortex neurons.
  • Responses were selective for light or dark stimuli, comparable in size and latency (~25 ms) to visual cortex.
  • Visual space representation showed a central visual field bias but lacked a topographic retinotopic map.
  • Optogenetic silencing of visual cortex abolished frontal cortex visual responses.

Conclusions:

  • Feedforward hierarchical connectivity extends visual spatial processing directly into mouse frontal cortex.
  • Frontal cortex neurons play a role in analyzing visual spatial information, challenging previous assumptions about its exclusivity to sensory areas.