<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=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoPlainText, li.MsoPlainText, div.MsoPlainText
{mso-style-priority:99;
mso-style-link:"Plain Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.5pt;
font-family:Consolas;}
span.PlainTextChar
{mso-style-name:"Plain Text Char";
mso-style-priority:99;
mso-style-link:"Plain Text";
font-family:Consolas;}
.MsoChpDefault
{mso-style-type:export-only;}
@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=blue vlink=purple><div class=WordSection1><p class=MsoPlainText align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Master’s Thesis Defense<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Effect of Distractors on Encoding & Memorization of Direction of Motion Information<o:p></o:p></span></p><p class=MsoPlainText align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Onur Ekiz<o:p></o:p></span></p><p class=MsoPlainText align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoPlainText align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>October 28th, 2011<o:p></o:p></span></p><p class=MsoPlainText align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>10:00 AM<o:p></o:p></span></p><p class=MsoPlainText align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Electrical & Computer Engineering Conference Room<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Thesis Defense Committee Members:<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Haluk Ogmen, Chair, ECE Department<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Srimant Tripathy, Co-chair, University of Bradford<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Bhavin Sheth, ECE Department<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>Harold Bedell, College of Optometry<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'>In this study, we investigated by psychophysical experiments how attentional resources influence the encoding and memorization of direction-of-motion information. We used statistical modeling to assess the accuracy, precision, capacity, and dynamics of visual encoding and memory. Our results show that encoding and memorization of direction-of-motion information remain accurate over a broad range of target and distractor set-sizes. An increase in target set-size causes a linear decay in performance, indicating a limited capacity for encoding and memorization. On the other hand, distractor set-size influences only the rapidly decaying high-capacity (iconic) memory; it has no effect on the encoding and the visual short-term memory stages. Iconic memory exhibits an exponential decay as a function of time. The precision parameters for encoding and memory decline gradually as a function of target set-size. In the case of memory, this decline exhibits a lower bound. Taken together, our results argue against the popular discrete-slot models of memory and, instead, suggest a shared resource model where resources are shared until a minimum usable resource level is reached.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:12.0pt;font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p></div></body></html>