Lateral Inhibition
Lateral Inhibition - Related Videos
00:46
Feedback Inhibition
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2019
Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell! Since enzymes help control the rate of reactions, their activity is regulated so that appropriate amounts of starting materials, intermediate metabolites, and products are maintained in the cell. Excessive build-up or depletion of...
01:28
Lateralization
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2024
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains. • The left hemisphere is particularly proficient in managing logical and language-related activities. • It plays a...
09:23
Lateral Root Inducible System in Arabidopsis and Maize
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Cited by 8 •
2016
The Lateral Root Inducible System (LRIS) allows for synchronous induction of lateral roots and is presented for Arabidopsis thaliana and maize.
09:38
An Assay for Lateral Line Regeneration in Adult Zebrafish
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Cited by 11 •
2014
Because many zebrafish models of neurological and non-neurological diseases are studied in the adult fish rather than the embryo/larvae, we developed a quantitative lateral line regenerative assay that can be applied to adult zebrafish disease models. The assay involved resolution at the 1) neuromast and 2) individual hair cell levels.
08:56
Lateral Canthotomy and Inferior Cantholysis
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2023
Source: James W Bonz, MD, Emergency Medicine, Yale School of Medicine, New Haven, Connecticut, USA Lateral canthotomy is a potentially eyesight-saving procedure when performed emergently for an orbital compartment syndrome. An orbital compartment syndrome results from a buildup of pressure behind the eye; as pressure mounts, both the optic nerve and its vascular supply are compressed, rapidly leading to nerve damage and blindness if the pressure is not quickly relieved. The medial and lateral...
FAQs
The relative strength of stimulation determines how strongly activity is contrasted across a tissue. A region receiving stronger input can reduce the responses of nearby regions, creating a sharper difference between the most stimulated area and its surroundings. This spatial contrast allows biological systems to emphasize changes in a signal rather than responding uniformly across an entire region.
Inhibitory connections transmit the suppressive influence of an activated cell to neighboring cells. In nervous tissue, interneurons can provide this connection, while other tissues may rely on signaling between adjacent cells. These components link local activity with nearby suppression, allowing the tissue to organize responses according to spatial differences in stimulation.
It enhances boundaries by reducing responses around a strongly stimulated region. When neighboring areas receive less stimulation, their suppression makes the transition between regions more pronounced. In sensory systems, this contrast enhancement helps the nervous system identify changes in a signal, such as a shift in light intensity, instead of treating the whole field as equally significant.
A characteristic pattern is strong activity in a stimulated region accompanied by reduced activity in adjacent regions. The important observation is therefore not only the response at the point of stimulation, but also how nearby cells respond relative to it. A sharper spatial difference indicates that inhibitory interactions are organizing the signal across the tissue.
Within retinal circuits, lateral inhibition helps distinguish differences in light intensity across nearby regions. Areas receiving stronger light-related stimulation can reduce responses in surrounding areas, increasing contrast between them. This organization supports visual detection of edges and boundaries, giving the nervous system more precise information about where illumination changes across the visual field.
During development, lateral inhibition can contribute to pattern formation and spatial organization in tissues. Local activation paired with reduced activity in neighboring areas helps create differences across a developing region. Those differences can organize where distinct patterns emerge, making the process relevant not only to sensory biology but also to the arrangement of developing tissues.