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Related Concept Videos

Association Areas of the Cortex01:21

Association Areas of the Cortex

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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,...
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Vision01:24

Vision

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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.
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Visual Agnosia01:12

Visual Agnosia

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Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
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Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

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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....
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Visual System01:26

Visual System

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Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
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Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

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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...
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Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging
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Visual experience shapes functional connectivity between occipital and non-visual networks.

Mengyu Tian1,2, Xiang Xiao3, Huiqing Hu4

  • 1Center for Educational Science and Technology, Beijing Normal University, Zhuhai, China.

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|March 18, 2026
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Summary
This summary is machine-generated.

Infant visual cortex connectivity resembles blind adults, not sighted adults, suggesting visual experience shapes brain plasticity. Early visual input influences functional connections, impacting brain development.

Keywords:
functional connectivityhumaninfantsneurosciencevisual cortexvisual experience

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Area of Science:

  • Neuroscience
  • Developmental Neuroscience
  • Cognitive Neuroscience

Background:

  • Human brain function is shaped by experience, particularly in the visual cortex.
  • Most research on brain plasticity focuses on adults, leaving developmental origins unclear.
  • Understanding how early visual experience influences brain development is crucial.

Purpose of the Study:

  • To investigate the developmental origins of functional plasticity in the human visual cortex.
  • To compare the functional connectivity of visual cortices in blind adults, blindfolded sighted adults, and infants.
  • To determine if early visual experience or blindness drives changes in brain connectivity.

Main Methods:

  • Resting-state functional connectivity MRI was used.
  • Data from blind adults (n=30), blindfolded sighted adults (n=50), and a large infant cohort (n=475) were analyzed.
  • Connectivity patterns of visual cortices with sensory-motor and prefrontal cortex networks were compared.

Main Results:

  • Sighted adults exhibit stronger visual cortex coupling with sensory-motor networks than prefrontal cortex (PFC).
  • Blind adults show stronger visual cortex coupling with PFC than sensory-motor networks.
  • Infant secondary visual cortices resemble blind adults (stronger PFC coupling), while primary visual cortices show intermediate connectivity.

Conclusions:

  • Visual experience, not just blindness, modifies functional connectivity profiles.
  • Infant visual cortex development shows patterns suggesting activity-dependent plasticity.
  • These findings highlight the dynamic interplay between sensory experience and brain development from infancy.