Botany

Question

What is the recording instrument called? Attached to things such as polygraphs and seismographs are recording instruments (pen and paper put simply). I was wondering if there is a special name for the recording device (i want to search online to purchase one). Also what equipment would i need to hook this recording device up to a plant or other organic object to record electrical pulses. Thanks!

Answer

<P>Greetings!<BR><BR>Thank you for submitting your question to AskNSDL.&nbsp; I'm sorry for the delay. It appears that&nbsp;&nbsp;none of our&nbsp;specialists were able to respond to your question.<BR><BR>I'm a&nbsp;reference&nbsp;librarian, and I ran an Internet search to look for free, quality information on this topic. I used Google, <A href=http://www.google.com">http://www.google.com</A>, and searched on this phrase: "polygraph accessories".<BR><BR>The first result is a commercial webpage that markets conventional and computerized polygraph accessories. From browsing their products, it appears that they call the recording device a "stimulus marker."<BR><BR>LaFayette Instruments, <A href=http://www.lafayetteinstrument.com/accessor.htm">http://www.lafayetteinstrument.com/accessor.htm</A>&nbsp;. Click on the second link to go straight to descriptions of electronic and pneumatic "stimulus markers." This website is suggested purely for your information, and is not an endorsement of LaFayette Instruments' products.<BR><A href=http://www.lafayetteinstrument.com/accessor.htm#conventi">http://www.lafayetteinstrument.com/accessor.htm#conventi</A><BR><BR>My Internet search turned up an interesting paper on Darwin's first experiments.<BR><BR><EM>Darwin and his research on plant motion</EM> - "This page provides a procedure that attempts to reproduce one of the methods Darwin&nbsp; used to record plant movements".<BR><A href=http://sunflower.bio.indiana.edu/~rhangart/plantmotion/projects/darwin/darwinspmp.html">http://sunflower.bio.indiana.edu/~rhangart/plantmotion/projects/darwin/darwinspmp.html</A><BR><BR>You can find more&nbsp;general information on polygraphs and seismographs, as well as links to products,&nbsp;at the website,&nbsp;howstuff works.com,<BR><A href=http://science.howstuffworks.com/">http://science.howstuffworks.com/</A></P> <P><EM>How do seismographs work? </EM>&nbsp;"... the device can be as simple as a piece of paper and a pencil attached to whatever it is&nbsp;that you are recording the movement of. Using a motor to pull the piece of paper would allow you to record movement over time. Real seismographs employ tools that "magnify the signal."&nbsp;<BR><A href=http://science.howstuffworks.com/question142.htm">http://science.howstuffworks.com/question142.htm</A></P> <P><EM>How does a lie detector (polygraph) work?<BR>&nbsp;</EM><A href=http://science.howstuffworks.com/question123.htm">http://science.howstuffworks.com/question123.htm</A></P> <P>I hope this helps. If not, please feel free to resubmit your question. If you do, I&nbsp;suggest that you change the category from botany to "Science" or&nbsp;"Technology"&nbsp;in order to reach more&nbsp;experts who&nbsp;have experience in this area.<BR><BR>Once again, I apologize for the delay in answering your question. Remember that your library is also a good source of materials and resources,&nbsp;and most reference ibrarians will be willing to help.<BR><BR>Best wishes,<BR>Joyce W.<BR>AskNSDL staff<BR></P> http://www.lafayetteinstrument.com/accessor.htm http://www.lafayetteinstrument.com/accessor.htm#conventi http://sunflower.bio.indiana.edu/~rhangart/plantmotion/projects/darwin/darwinspmp.html http://science.howstuffworks.com/ http://science.howstuffworks.com/question142.htm http://science.howstuffworks.com/question123.htm plant movement<BR>polygraph<BR>seismograph<BR>stimulus marker<BR> <P>&nbsp;</P> http://vrd.askvrd.org/services/answerschema.xml