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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I don’t think vibration affect the equipment until it starts falling apart. However, it affects patients and may influence recordings through changes
in arousal (e.g. sleep recording) and attention (e.g. cognitive tests).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">Pål G. Larsson M.D., PhD.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">Head of Clinical Neurophysiology<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">Department of Neurosurgery<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">Division of Surgery and Clinical Neuroscience<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">Oslo University Hospital<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">Po.box 4950 Nydalen<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">0424 Oslo<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">Norway<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">Tel: (+47) 23074407<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">Mobile: (+47) 93429791<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">E-mail:
<a href="mailto:pall@ous-hf.no">pall@ous-hf.no</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">not sensitive<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Fra:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> eeglablist [mailto:eeglablist-bounces@sccn.ucsd.edu]
<b>På vegne av</b> BROOKES, David<br>
<b>Sendt:</b> 1. november 2017 11:34<br>
<b>Til:</b> eeglablist@sccn.ucsd.edu<br>
<b>Emne:</b> [Eeglablist] Physical vibrations affecting EEG results?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Hi,</span></a><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Does anyone know the threshold limit for physical tremors/vibrations affecting EEG readings?
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif""><br>
We are relocating the EEG lab to another room which is on the third floor of a building next to busy main road. When heavy trucks go past you can feel a physical tremor in the buildings floor and walls.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif"">To this end, we are hiring some equipment to measure the vibrations (commonly measured in Peak Particle Velocity (PPV), Displacement and Acceleration) but we
need to know what the limits are. Please can someone advise us on this?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Kindest Regards,<br>
David Brookes<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><i><span lang="EN-GB" style="font-size:8.0pt;font-family:"Calibri","sans-serif"">Psychology Technician<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="EN-GB" style="font-size:8.0pt;font-family:"Calibri","sans-serif"">University of Gloucestershire<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="EN-GB" style="font-size:8.0pt;font-family:"Calibri","sans-serif"">TC110, Francis Close Hall Campus<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="EN-GB" style="font-size:8.0pt;font-family:"Calibri","sans-serif"">Cheltenham<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="EN-GB" style="font-size:8.0pt;font-family:"Calibri","sans-serif"">Tel: (01242) 714806<o:p></o:p></span></i></p>
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