Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

12.8K
Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
12.8K
Sensitivity, Specificity, and Predicted Value01:13

Sensitivity, Specificity, and Predicted Value

1.2K
In healthcare diagnostics, laboratory tests play a crucial role in identifying and diagnosing a wide range of medical conditions. However, interpreting test results is not always straightforward. An abnormal test result does not always confirm the presence of a disease, just as a normal result does not guarantee its absence. To assess the reliability of these diagnostic tools, healthcare practitioners rely on two key statistical indicators: sensitivity and specificity.
Sensitivity is the...
1.2K
Sputum Studies II: Culture and Sensitivity01:20

Sputum Studies II: Culture and Sensitivity

1.2K
Description
Sputum culture and sensitivity is a medical procedure used to diagnose bacterial infections in the respiratory tract and select the most appropriate antibiotics for treatment. This process involves analyzing sputum samples of thick and opaque secretions produced in the lungs and airways. These samples are collected from patients and then sent to the laboratory for analysis.
The test can identify various pathogens responsible for respiratory infections, including Streptococcus,...
1.2K
Urine Studies II: Urine Culture and Sensitivity Test01:26

Urine Studies II: Urine Culture and Sensitivity Test

985
A urine culture and sensitivity test is a diagnostic procedure used to identify urinary tract bacterial infections and determine the most effective antibiotics for treatment. This test is generally preferred when a patient shows manifestations of a urinary tract infection, such as frequent or painful urination, cloudy or foul-smelling urine, or lower abdominal pain.Purpose of the TestThe primary goals of a urine culture and sensitivity test are to:Determine the specific bacteria causing the...
985
Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

1.4K
Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
1.4K
Egoism and Altruism01:55

Egoism and Altruism

93.2K
Voluntary behavior with the intent to help other people is called prosocial behavior. Why do people help other people? Is personal benefit such as feeling good about oneself the only reason people help one another?
93.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Development and Immune Efficacy Evaluation of Two Live Triple-Gene-Deleted Vaccine Candidates Against Bovine Herpesvirus Type 1.

Animals : an open access journal from MDPI·2026
Same author

Personalized Estimates of Brain Cortical Structural Similarity in Major Depressive Disorder: Evidence from a Multi-Site Neuroimaging Dataset.

Diagnostics (Basel, Switzerland)·2026
Same author

Mobile health apps for home care support of children with congenital heart disease: A scoping review based on persuasive system design models.

Digital health·2026
Same author

Microbial enterotype is linked to episodic and working memories via brain function in the parietal and occipital cortices.

BMC biology·2026
Same author

Brain network representations of placebo analgesia.

Psychological medicine·2026
Same author

[Variation of amino acid components and taste correlation analysis during stir-frying process of Gardeniae Fructus].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2026

Related Experiment Video

Updated: Jan 25, 2026

Assessment of Myofilament Ca2+ Sensitivity Underlying Cardiac Excitation-contraction Coupling
08:29

Assessment of Myofilament Ca2+ Sensitivity Underlying Cardiac Excitation-contraction Coupling

Published on: August 1, 2016

9.9K

Neuroanatomical substrates underlying contrast sensitivity.

Ying Yang1, Yajun Wang1, Cun Zhang1

  • 1Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China.

Quantitative Imaging in Medicine and Surgery
|April 30, 2019
PubMed
Summary

Neuroanatomy impacts contrast sensitivity (CS). Gray matter volume in the visual cortex, particularly V3A and posterior parietal cortex, positively correlates with better CS performance in healthy adults.

Keywords:
Contrast sensitivity (CS)V3Amagnetic resonance imaging (MRI)posterior parietal cortexvoxel-based morphometry (VBM)

More Related Videos

Retrograde Neuroanatomical Tracing of Phrenic Motor Neurons in Mice
09:05

Retrograde Neuroanatomical Tracing of Phrenic Motor Neurons in Mice

Published on: February 22, 2018

13.4K
ACT1-CUP1 Assays Determine the Substrate-Specific Sensitivities of Spliceosomal Mutants in Budding Yeast
07:31

ACT1-CUP1 Assays Determine the Substrate-Specific Sensitivities of Spliceosomal Mutants in Budding Yeast

Published on: June 30, 2022

2.9K

Related Experiment Videos

Last Updated: Jan 25, 2026

Assessment of Myofilament Ca2+ Sensitivity Underlying Cardiac Excitation-contraction Coupling
08:29

Assessment of Myofilament Ca2+ Sensitivity Underlying Cardiac Excitation-contraction Coupling

Published on: August 1, 2016

9.9K
Retrograde Neuroanatomical Tracing of Phrenic Motor Neurons in Mice
09:05

Retrograde Neuroanatomical Tracing of Phrenic Motor Neurons in Mice

Published on: February 22, 2018

13.4K
ACT1-CUP1 Assays Determine the Substrate-Specific Sensitivities of Spliceosomal Mutants in Budding Yeast
07:31

ACT1-CUP1 Assays Determine the Substrate-Specific Sensitivities of Spliceosomal Mutants in Budding Yeast

Published on: June 30, 2022

2.9K

Area of Science:

  • Neuroscience
  • Vision Science

Background:

  • Contrast sensitivity (CS) is crucial for visual function.
  • Aging and disease often impair CS, but underlying neuroanatomy is unclear.

Purpose of the Study:

  • To investigate the relationship between gray matter volume (GMV) and CS.
  • To identify specific brain regions associated with contrast sensitivity.

Main Methods:

  • Used Human Connectome Project (HCP) MRI data from 100 healthy young adults.
  • Assessed CS using the Mars Contrast Sensitivity Test.
  • Performed voxel-wise multiple regression analysis correlating CS scores with GMV.

Main Results:

  • Found significant positive correlations between CS scores and GMV in the bilateral visual cortex.
  • Identified key clusters in bilateral V3A and extending to the posterior parietal cortex.

Conclusions:

  • Suggests the dorsal visual stream plays a critical role in CS processing.
  • Provides neuroanatomical insights into CS mechanisms and potential links to brain disorders.