{"id":2185,"date":"2010-01-01T11:44:07","date_gmt":"2010-01-01T15:44:07","guid":{"rendered":"http:\/\/www.schollnick.net\/wordpress\/?p=2185"},"modified":"2010-01-01T11:44:07","modified_gmt":"2010-01-01T15:44:07","slug":"you-shot-me-thats-unfair-my-monitor-was-refreshing","status":"publish","type":"post","link":"http:\/\/www.schollnick.net\/wordpress\/2010\/01\/you-shot-me-thats-unfair-my-monitor-was-refreshing\/","title":{"rendered":"You shot me! That’s unfair, my monitor was refreshing…"},"content":{"rendered":"

Well, in this post,\u00c2\u00a0Monitor Interlacing? What\u00e2\u20ac\u2122s the refresh rate, kenneth?<\/a> I attempted to address the concept of a Monitor’s refresh rate… \u00c2\u00a0But I noticed an odd search request:<\/p>\n

How Does Reaction time related to Vertical refresh rate<\/p>\n

For those that missed the earlier post, a Monitor’s refresh rate is a measurement of of the number of times a second that the video is displayed on a CRT monitor. \u00c2\u00a0LCD monitor do not display the image in the same way. \u00c2\u00a0While they have a latency, due to the amount of time it takes to “toggle” the pixel to the new state, their image is persistent, and thus does not have to be refreshed XX number of times per second.<\/p>\n

As I stated, my first reaction was that a monitor, even in interlaced mode, would be significantly faster and would have no impact on the users reflex reaction time.<\/p>\n

I examined a few documents through a Google search, and it appears that CRT based monitors add roughly 10-20 Ms to the reflex time. \u00c2\u00a0This is explained by the fact that the image may be sent to the CRT during a refresh, so the image needs to be completely built before the user can actually respond to the image.<\/p>\n

Now this is simplified, especially since the user may be able to respond to the image before it is completely displayed. \u00c2\u00a0But there is a small delay imposed by the CRT drawing cycle. <\/strong>Now does this apply to LCD displays, yes, but not in the same manner. \u00c2\u00a0The drawing on LCD is different, but there is still a delay. \u00c2\u00a0I believe it wouldn’t be as large, but I have not yet found any documentation on this, but my common sense says that it would be less than an CRT display.<\/p>\n

I welcome any input on this, especially by anyone in this field.<\/p>\n

References:<\/p>\n

http:\/\/brain.oxfordjournals.org\/cgi\/reprint\/119\/6\/2155-a.pdf
\nhttp:\/\/www.neurobs.com\/pres_docs\/html\/18_tutorials\/03_tutorial_-_picture_stimulus_timing.htm<\/p>\n","protected":false},"excerpt":{"rendered":"