Touchscreens and matlab (sandra quinn )


Subject: Touchscreens and matlab
From:    sandra quinn  <s_quinn08@xxxxxxxx>
Date:    Wed, 21 Sep 2011 15:42:18 +0000
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

--_14cd606a-e670-47ff-9b29-88c8cf35b1be_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear Ben=2C We recently used a touchscreen (Keytec=2C Magic Touch Screen=2C KTMT-1500-U= SB) linked to Matlab to obtain responses from children. I think it cosr =A3= 150 at the time. That isn't too bad really. It was very simply to set up an= d was up and running immediately.The touchscreen is simply a mouse.=20 It's actually pretty simple in terms of the code for Matlab. We used it to = obtain 2AFC responses from children. You need to split the screen into two = (left and right). You then set up the code such that the location of the re= sponse (based on the size of you monitor) records some number 1 or 2. Matla= b just needs to be told how to convert the spatial location of the response= on the monitor into a number 0 or 1/ 1 or 2. It will depend on what you wa= nt to do=2C but it is really easy. If you want more info let me know. thanks Sandra Quinn > Date: Wed=2C 21 Sep 2011 09:25:54 -0500 > From: "Hornsby=2C Benjamin Wade Young" <ben.hornsby@xxxxxxxx> > Subject: Suggestions for touch screen tablets for auditory experiments >=20 > --_000_AE2199B600823B4A9CC19B6E88BE050213AD65450Aitshcwnem04ds_ > Content-Type: text/plain=3B charset=3D"us-ascii" > Content-Transfer-Encoding: quoted-printable >=20 > Hi All=2C > I am working on a program to present nonsense syllables (CV and VC) at va= ri=3D > ous SNRs and in various filter conditions. In past work I've used Matlab = to=3D > develop the base program=2C TDT software for stimulus presentation and M= atla=3D > b for GUIs that allow subjects to respond via mouse click on a computer m= on=3D > itor. >=20 > However=2C I'd like to branch out and use a touch screen monitor to colle= ct s=3D > ubject responses. My target population is elderly hearing impaired listen= er=3D > s and my thought is the touch screen response system may be easier than u= si=3D > ng a mouse. The screen would need to be large enough to clearly display a= ll=3D > the consonant (23) and vowel (3) options for my stimuli. >=20 > I've not done this type of programming and am hopeful that some of you wi= th=3D > experience might direct me to specific touch screen monitors that would = be=3D > appropriate and computer programming languages (if Matlab won't do it) t= o =3D > use to develop this type of program. I'm also working on a budget for thi= s =3D > so any information regarding approximate costs for specific touch screen = mo=3D > nitors that would be appropriate for this type of experiment would also b= e =3D > appreciated. >=20 > Just starting out so all comments are appreciated. >=20 > Thanks much=2C >=20 > Ben >=20 > Benjamin W.Y. Hornsby=2C Ph.D. > Assistant Professor > Vanderbilt Bill Wilkerson Center > Department of Hearing and Speech Sciences >=20 > Mailing Address > Room 8310 Medical Center East=2C South Tower > 1215 21st Ave. South=2C Nashville=2C TN 37232-8242 >=20 = --_14cd606a-e670-47ff-9b29-88c8cf35b1be_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <html> <head> <style><!-- .hmmessage P { margin:0px=3B padding:0px } body.hmmessage { font-size: 10pt=3B font-family:Tahoma } --></style> </head> <body class=3D'hmmessage'><div dir=3D'ltr'> Dear Ben=2C<br><br>We recently used a touchscreen (Keytec=2C Magic Touch Sc= reen=2C KTMT-1500-USB) linked to Matlab to obtain responses from children. = I think it cosr =A3150 at the time. That isn't too bad really. It was very = simply to set up and was up and running immediately.The touchscreen is simp= ly a mouse. <br><br>It's actually pretty simple in terms of the code for Ma= tlab. We used it to obtain 2AFC responses from children. You need to split = the screen into two (left and right). You then set up the code such that th= e location of the response (based on the size of you monitor) records some = number 1 or 2. Matlab just needs to be told how to convert the spatial loca= tion of the response on the monitor into a number 0 or 1/ 1 or 2. It will d= epend on what you want to do=2C but it is really easy. If you want more inf= o let me know.<br><br>thanks<br><br>Sandra Quinn<br><br><div>&gt=3B Date: = Wed=2C 21 Sep 2011 09:25:54 -0500<br>&gt=3B From: "Hornsby=2C Benjamin= Wade Young" &lt=3Bben.hornsby@xxxxxxxx&gt=3B<br>&gt=3B Subject: Sugg= estions for touch screen tablets for auditory experiments<br>&gt=3B <br>&gt= =3B --_000_AE2199B600823B4A9CC19B6E88BE050213AD65450Aitshcwnem04ds_<br>&gt= =3B Content-Type: text/plain=3B charset=3D"us-ascii"<br>&gt=3B Content-Tran= sfer-Encoding: quoted-printable<br>&gt=3B <br>&gt=3B Hi All=2C<br>&gt=3B I = am working on a program to present nonsense syllables (CV and VC) at vari= =3D<br>&gt=3B ous SNRs and in various filter conditions. In past work I've = used Matlab to=3D<br>&gt=3B develop the base program=2C TDT software for s= timulus presentation and Matla=3D<br>&gt=3B b for GUIs that allow subjects = to respond via mouse click on a computer mon=3D<br>&gt=3B itor.<br>&gt=3B <= br>&gt=3B However=2C I'd like to branch out and use a touch screen monitor = to collect s=3D<br>&gt=3B ubject responses. My target population is elderly= hearing impaired listener=3D<br>&gt=3B s and my thought is the touch scree= n response system may be easier than usi=3D<br>&gt=3B ng a mouse. The scree= n would need to be large enough to clearly display all=3D<br>&gt=3B the co= nsonant (23) and vowel (3) options for my stimuli.<br>&gt=3B <br>&gt=3B I'v= e not done this type of programming and am hopeful that some of you with=3D= <br>&gt=3B experience might direct me to specific touch screen monitors th= at would be=3D<br>&gt=3B appropriate and computer programming languages (i= f Matlab won't do it) to =3D<br>&gt=3B use to develop this type of program.= I'm also working on a budget for this =3D<br>&gt=3B so any information reg= arding approximate costs for specific touch screen mo=3D<br>&gt=3B nitors t= hat would be appropriate for this type of experiment would also be =3D<br>&= gt=3B appreciated.<br>&gt=3B <br>&gt=3B Just starting out so all comments a= re appreciated.<br>&gt=3B <br>&gt=3B Thanks much=2C<br>&gt=3B <br>&gt=3B Be= n<br>&gt=3B <br>&gt=3B Benjamin W.Y. Hornsby=2C Ph.D.<br>&gt=3B Assistant P= rofessor<br>&gt=3B Vanderbilt Bill Wilkerson Center<br>&gt=3B Department of= Hearing and Speech Sciences<br>&gt=3B <br>&gt=3B Mailing Address<br>&gt=3B= Room 8310 Medical Center East=2C South Tower<br>&gt=3B 1215 21st Ave. Sout= h=2C Nashville=2C TN 37232-8242<br>&gt=3B <br></div> </div></bod= y> </html>= --_14cd606a-e670-47ff-9b29-88c8cf35b1be_--


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