Name: enabling high grayscale resolution displays and accurate response time measurements on conventional computers
Uploaded: 2012-02-29T12:00:00
Description: Watch this Scientific Journal Video about Enabling High Grayscale Resolution Displays and Accurate Response Time Measurements on Conventional Computers at JoVE.com

这项工作是由聂和镍氢电池。

1。 VideoSwitcher 1.1。将VideoSwitcher连接到电脑 VideoSwitcher（图1）接收模拟视频（VGA）输入，用来驱动阴极射线管（CRT）的彩色监视器。使用的VideoSwitcher之前，确保计算机图形卡具有一个VGA接口（图2A）或数字可视接口（DVI-I），港口（图2B），传输数字和模拟视频信号。一个DVI至VGA转接器（图2C）是要连接的DVI-I端口的VideoSwitcher。 关闭计算?...

<ol>
	<li>Li, X., Lu, Z. -. L., Xu, P., Jin, J., Zhou, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Generating+high+gray-level+resolution+monochrome+displays+with+conventional+computer+graphics+cards+and+color+monitors.">Generating high gray-level resolution monochrome displays with conventional computer graphics cards and color monitors.</a> Journal of Neuroscience Methods. 130 (1), 9-18 (2003).</li><li>Pelli, D. G., Zhang, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Accurate+control+of+contrast+on+microcomputer+displays.">Accurate control of contrast on microcomputer displays.</a> Vision Research. 31, 1337-1350 (1991).</li><li>Li, X., Liang, Z., Kleiner, M., Lu, Z. -. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=RTbox:+A+device+for+highly+accurate+response+time+measurements.">RTbox: A device for highly accurate response time measurements.</a> Behavior Research Methods. 42 (1), 212-225 (2010).</li><li>Lu, Z. L., Sperling, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Second-order+reversed+phi.">Second-order reversed phi.</a> Perception Psychophysics. 61, 1075-1088 (1999).</li><li>Colombo, E., Derrington, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Visual+calibration+of+CRT+monitors.">Visual calibration of CRT monitors.</a> Displays. 22, 87-95 (2001).</li></ol>

视频切换器提供了一个紧凑，价格低廉，易于使用的方法来产生高亮度高分辨率显示器使用传统的计算机图形卡和模拟彩色显示器。它是模拟输出的显卡和显示器之间的连接。它也可以单色和彩色显示模式之间切换，提供额外的便利。它的触发通道，使研究人员能够同步其他设备，以视觉显示器。 RTbox是结构紧凑，价格低廉，易于使用的硬件/软件解决方案，准确的响应时间?...

enabling high grayscale resolution displays and accurate response time measurements on conventional computers

基于传统的计算机图形卡的显示系统能够产生8位灰度级分辨率的图像。然而，在视觉研究中的大多数实验需要超过12位亮度分辨率的显示器。几种解决方案。位+ + 1 2 DataPixx的使用显卡和高分辨率的数字视频接口（DVI）输出（14或16位）的数字-模拟转换器驱动模拟显示设备。 VideoSwitcher 3这里描述相结合的模拟视频信号从显卡的红色和蓝色通道使用不同重量的被动电阻网络和有源电路提供相同的视频信号的彩色显示器的三个通道。该方法提供了一种廉价的方式，使高分辨率单色显示器，使用传统的图形卡和模拟监视器。它也可以提供触发信号，可以用来标记刺激声母，因此很容易与生理记录或响应时间测量同步可视化显示。 虽然经常用于测量响应时间（RT）的计算机键盘和鼠标，这些测量的精确度是相当低的。 RTbox是一个专门的硬件和软件解决方案，准确的实时测量。通过USB连接到电脑主机连接，驱动程序的RTbox是与所有传统的操作系统兼容。它采用了微处理器和高清晰度时钟记录按钮事件，这是缓冲，直到主机计算机检索的身份和时机。记录的按钮事件不会影响在主机上的数据传输和处理相关的潜在的时序不确定性或偏见。异步存储，大大简化了用户程序的设计。有几种方法可用，到同步的RTbox的钟表和主机COMPUT呃。还可以接收的RTbox外部触发器，可用于测量外部事件RT。 VideoSwitcher和RTbox供用户购买。有关的资料和许多演示程序，可以发现在<a href="http://lobes.usc.edu/">http://lobes.usc.edu/</a> 。

Watch this Scientific Journal Video about Enabling High Grayscale Resolution Displays and Accurate Response Time Measurements on Conventional Computers at JoVE.com

Enabling High Grayscale Resolution Displays and Accurate Response Time Measurements on Conventional Computers

传统的计算机硬件，不能产生足够高的灰度具有足够精度的分辨率和测量响应时间的视觉刺激。我们描述了如何使用的VideoSwitcher产生高分辨率单色显示器，响应时间测量精度高，与传统的计算机硬件和RTbox。

启用高灰度分辨率的显示器和传统计算机准确的响应时间测量

Display systems based on conventional computer graphics cards are capable of generating images with 8-bit gray level resolution. However, most experiments ...

Research

JoVE Journal

Neuroscience

An Organotypic Slice Assay for High-Resolution Time-Lapse Imaging of Neuronal Migration in the Postnatal Brain

对于高分辨率延时成像神经细胞迁移的一个器官型产后脑切片检测

Neurogenesis in the postnatal brain depends on maintenance of three biological events: proliferation of progenitor cells, migration of neuroblasts, as ...

科研

神经科学

A Rapid Approach to High-Resolution Fluorescence Imaging in Semi-Thick Brain Slices

一个快速高分辨率的荧光成像的方法在半厚的脑片

A fundamental goal to both basic and clinical neuroscience is to better understand the identities, molecular makeup, and patterns of connectivity that are ...

High-resolution Functional Magnetic Resonance Imaging Methods for Human Midbrain

高分辨率人类中脑功能磁共振成像方法

Functional MRI (fMRI) is a widely used tool for non-invasively measuring correlates of human brain activity. However, its use has mostly been focused upon ...

High-resolution Live Imaging of Cell Behavior in the Developing Neuroepithelium

高分辨率实时成像发展中的神经上皮细胞的行为

The embryonic spinal cord consists of cycling neural progenitor cells that give rise to a large percentage of the neuronal and glial cells of the central ...

In Vivo Electrophysiological Measurements on Mouse Sciatic Nerves

In Vivo Electrophysiological Measurements on Mouse Sciatic Nerves

在对小鼠坐骨神经体内的电测量

Electrophysiological studies allow a rational classification of various neuromuscular diseases and are of help, together with neuropathological ...

Detection of Axonally Localized mRNAs in Brain Sections Using High-Resolution In Situ Hybridization

Detection of Axonally Localized mRNAs in Brain Sections Using High-Resolution In Situ Hybridization

在脑切片检测轴突本地化mRNAs的高空间分辨率<em&gt;原位</em&gt;杂交

mRNAs are frequently localized to vertebrate axons and their local translation is required for axon pathfinding or branching during development and for ...

High-resolution Structural Magnetic Resonance Imaging of the Human Subcortex In Vivo and Postmortem

High-resolution Structural Magnetic Resonance Imaging of the Human Subcortex In Vivo and Postmortem

高分辨率结构磁共振人类皮质下的成像<I&gt;在体内</I&gt;与死亡

The focus of this study was to test the resolution limits of structural MRI of a postmortem brain compared to living human brains. The resolution of ...

High-Resolution Quantitative Immunogold Analysis of Membrane Receptors at Retinal Ribbon Synapses

高分辨率定量免疫膜受体在视网膜带状突触分析

Retinal ganglion cells (RGCs) receive excitatory glutamatergic input from bipolar cells. Synaptic excitation of RGCs is mediated postsynaptically by NMDA ...

Triggering Cell Stress and Death Using Conventional UV Laser Confocal Microscopy

触发细胞应激和死亡使用传统的紫外线激光共聚焦显微镜

Using a standard confocal setup, a UV ablation method can be utilized to selectively induce cellular injury and to visualize single-cell responses and ...

Time-dependent Increase in the Network Response to the Stimulation of Neuronal Cell Cultures on Micro-electrode Arrays

时间依赖性增加对微电极阵列刺激神经元细胞培养物的网络响应

Micro-electrode arrays (MEAs) can be used to investigate drug toxicity, design paradigms for next-generation personalized medicine, and study network ...