Visual Screen Fabrication
Visual Screen Fabrication - Related Videos
11:20
Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry
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Cited by 4 •
2014
A procedure for creating and imaging capillary bridges in slit-pore geometry is presented. The creation of capillary bridges relies on the formation of pillars to provide a directional physical and chemical heterogeneity to pin the fluid. Capillary bridges are formed and manipulated using microstages and visualized using a CCD camera.
12:26
Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics
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Cited by 4 •
2013
In this video we first describe fabrication and operation procedures of a surface acoustic wave (SAW) acoustic counterflow device. We then demonstrate an experimental setup that allows for both qualitative flow visualization and quantitative analysis of complex flows within the SAW pumping device.
07:36
Fabricating Nanogaps by Nanoskiving
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Cited by 3 •
2013
The fabrication of electrically addressable, high-aspect-ratio (> 1000:1) metal nanowires separated by gaps of single nanometers using either sacrificial layers of aluminum and silver or self-assembled monolayers as templates is described. These nanogap structures are fabricated without a clean room or any photo- or electron-beam lithographic processes by a form of edge lithography known as nanoskiving.
08:50
Genetic Screens
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2023
Genetic screens are critical tools for defining gene function and understanding gene interactions. Screens typically involve mutating genes and then assessing the affected organisms for phenotypes of interest. The process can be “forward”, where mutations are generated randomly to identify unknown genes responsible for the phenotypes, or it can be “reverse”, where specific genes are targeted for mutation to observe what phenotypes are produced.Here, JoVE reviews various types of genetic...
09:44
Methods to Test Visual Attention Online
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Cited by 26 •
2015
To replicate laboratory settings, online data collection methods for visual tasks require tight control over stimulus presentation. We outline methods for the use of a web application to collect performance data on two tests of visual attention.
FAQs
These properties determine whether a visual stimulus reaches the subject in the intended form. Luminance and contrast shape stimulus visibility, color specifies chromatic content, viewing angle affects how the display is seen within the apparatus, and refresh timing controls when visual changes occur. Calibrating them helps behavioral responses reflect the planned stimulus rather than uncontrolled variation in its presentation.
Reflections and distortion can introduce visual information that was not part of the experimental design. A reflected feature may act as an unintended cue, while distortion can alter the apparent form or position of a stimulus. Reducing both effects supports cleaner comparisons across trials and makes it easier to attribute changes in perception, attention, learning, or decision-making to the intended visual conditions.
Consistent output keeps the visual input comparable from one trial to the next. When luminance, contrast, color, viewing angle, and refresh timing remain controlled, differences in an animal’s or participant’s responses are less likely to arise from changing display conditions. This improves reproducibility and strengthens interpretation of behavior in tasks involving perception, attention, learning, decision-making, or sensorimotor responses.
A basic workflow begins by selecting suitable display materials and components, then arranging the screen within the experimental apparatus. The constructed system is calibrated for luminance, contrast, color, viewing angle, and refresh timing. Finally, the setup should be checked for reflections, distortion, and unintended cues so that visual stimuli remain controlled and consistent during behavioral trials.
Researchers would use this approach whenever precise visual input is needed to interpret behavior. It is relevant to experiments examining visual perception, attention, learning, decision-making, and sensorimotor behavior. The screen system provides a controlled basis for presenting stimuli, allowing response patterns to be evaluated against known visual conditions rather than against an inconsistent or poorly characterized display.
A carefully fabricated screen supports measurements whose interpretation depends on stable visual stimulation. It can help researchers compare responses across trials, assess how subjects respond to controlled changes in visual properties, and distinguish stimulus-driven effects from presentation artifacts. In behavioral research, this contributes to more reproducible findings about perception, attention, learning, decision-making, and sensorimotor performance.