<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">ABR stimuli is typically a 100 microsecond electrical square wave presented through Entymotic ER 3a earphones. The earphone has a polyurethane tube to create
a time delay of .8 msec between the onset of the square wave and the arrival of the sound at the ear. This avoids the stimulus artifact that you obtain with earphones that are directly covering the ear. This combination will result in a acoustic click
centered in the 2 to 4 kHz region arriving at the cochlea once earphone, ear canal and middle ear resonance is taken into account. You can obtain the ER 3a with several different ohm ratings so be sure to match it to your equipment.
<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 style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><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 style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Herbert Jay Gould, Ph.D.</span><span style="font-size:10.0pt;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Associate Professor</span><span style="font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="350" style="width:262.5pt;border-collapse:collapse">
<tbody>
<tr>
<td style="padding:0in 0in 0in 0in">
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="350" style="width:262.5pt;border-collapse:collapse">
<tbody>
<tr>
<td width="59" style="width:44.25pt;border:none;border-bottom:solid #828282 1.0pt;padding:7.5pt 0in 7.5pt 0in">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><img width="59" height="89" id="Picture_x0020_1" src="cid:image001.jpg@01D1D785.E09C31D0" alt="Description: UofM logo"></span><span style="font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
</td>
<td style="border:none;border-bottom:solid #828282 1.0pt;padding:7.5pt 0in 7.5pt 7.5pt">
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#00529C">The University of Memphis School of Communication Sciences and Disorders <br>
</span><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#828282">4055 N. Park Loop <br>
Memphis, TN 38152 <br>
<br>
</span><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#00529C">901.678.5837 </span><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#828282">|</span><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#00529C"> <a href="http://memphis.edu/csd"><span style="color:blue">memphis.edu/csd</span></a><o:p></o:p></span></p>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><a href="mailto:Hgould@Memphis.edu"><span style="color:blue">Hgould@Memphis.edu</span></a></span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><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 style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged
information. Any unauthorized review, use, disclosure, or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.<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 style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><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 style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> eeglablist-bounces@sccn.ucsd.edu [mailto:eeglablist-bounces@sccn.ucsd.edu]
<b>On Behalf Of </b>Christian Fonseca<br>
<b>Sent:</b> Tuesday, July 05, 2016 4:33 PM<br>
<b>To:</b> eeglablist@sccn.ucsd.edu<br>
<b>Subject:</b> [Eeglablist] ABR Latency - Headphones<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">Hi!<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I'm trying to do a program to acquire data for ABR latencies, but I don't know which headphones can I use. Now, I'm using gamer headphones, but I saw that in hospitals uses another type of headphones with sound insulation into the plastic
earpad (Which brand are those headphones?)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Thanks for your answers,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Regards,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Christian Fonseca<o:p></o:p></p>
</div>
</div>
</div>
</body>
</html>