Related Experiment Video
Updated: Apr 14, 2026
10:05
A Large Lateral Craniotomy Procedure for Mesoscale Wide-field Optical Imaging of Brain Activity
Published on: May 7, 2017
13.0K
Area V5-a microcosm of the visual brain
1Wellcome Laboratory of Neurobiology, Cell and Developmental Biology, University College London London, UK.
Frontiers in Integrative Neuroscience
|April 18, 2015
Summary
Area V5, crucial for visual motion perception, offers insights into brain organization. Its study reveals how diverse signals, cell activity, and asynchronous processing contribute to our unified visual experience.
Area of Science:
- Neuroscience
- Visual Perception
- Brain Function
Background:
- Area V5, identified in 1969, is vital for visual motion perception.
- It is a highly studied region of the visual brain, providing significant insights.
- Understanding V5 illuminates general principles of visual brain organization.
Purpose of the Study:
- To explore the functional capacities and operational principles of Area V5.
- To investigate the relationship between neural activity in V5 and the perception of visual stimuli.
- To understand how V5 integrates information for a cohesive visual experience.
Main Methods:
- Analysis of signal diversity within Area V5.
- Correlation of single-cell activity with visual stimulus perception.
- Examination of input/output pathways and asynchronous processing in V5.
Main Results:
- Area V5 exhibits diverse signal processing capabilities.
- Single-cell activity in V5 directly relates to motion perception and preference.
- V5 demonstrates complex, asynchronous processing with multiple inputs and outputs.
Conclusions:
- Area V5 serves as a model system for understanding visual brain organization.
- Insights from V5 contribute to knowledge of neural specialization and integration.
- The study highlights V5's role in conscious visual awareness and perceptual binding.
Related Concept Videos
01:24Vision
61.7K
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.
61.7K
01:14Motor and Sensory Areas of the Cortex
9.4K
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....
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....
9.4K
01:26Visual System
2.3K
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...
Once through the pupil, the light passes through the lens, a...
2.3K
01:21Association Areas of the Cortex
10.7K
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,...
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,...
10.7K
01:12Visual Agnosia
1.8K
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...
1.8K
01:18Anatomy of the Brain: Ventricles
11.7K
There are hollow fluid-filled cavities known as ventricles deep inside the human brain. There are two lateral ventricles, one in each cerebral hemisphere, and each has three different projections — the anterior, inferior, and posterior horns visible from the lateral side. A thin membrane called the septum pellucidum separates the two lateral ventricles. The slender third ventricle in the diencephalon is connected to each lateral ventricle via a channel called the interventricular foramen.
11.7K