From asa8 at leicester.ac.uk Mon Aug 1 11:45:54 2005 From: asa8 at leicester.ac.uk (Andrews, A.S.) Date: Mon, 1 Aug 2005 12:45:54 +0100 Subject: Multi-channel audio in E-Prime? Message-ID: Hi Is it possible to output to more than the standard 2 audio channels in E-Prime? I would ideally like to output to 8 separate channels using a 7.1 sound card or maybe 2 5.1 cards. It would only ever be one channel at a time. Thanks. Best Regards, Tony Andrews Principal Computer Officer School of Psychology University of Leicester From s.johnston at bangor.ac.uk Mon Aug 1 11:56:01 2005 From: s.johnston at bangor.ac.uk (Steve Johnston) Date: Mon, 1 Aug 2005 12:56:01 +0100 Subject: Multi-channel audio in E-Prime? In-Reply-To: <6728E9270FDF8D44A41AF135DBB553E8049D4D33@sumac.cfs.le.ac.uk> Message-ID: Probably the best/easiest ways of doing this is to purchase something like a creative sound blaster live card. It basically puts a software system in the way of the playing software and the hardware so that you can modify any playing sound. You could, and this is how we implemented a sound experiment, play the sound in standard stereo (as far as eprime is concerned) and then use the creative EAX system to upmix to 6.1 or whatever you want. Admittedly it's not going to compete with hollywood movies for upmix quality, but if you fiddle with the settings it is rather good and provides a convincing surround sound effect. Steve ------- Dr Stephen Johnston Psychology Department University of Wales Penrallt Road Bangor Gwynedd, LL57 2AS UK -----Original Message----- From: eprime at mail.talkbank.org [mailto:eprime at mail.talkbank.org] On Behalf Of Andrews, A.S. Sent: 01 August 2005 12:46 To: eprime at mail.talkbank.org Subject: Multi-channel audio in E-Prime? Hi Is it possible to output to more than the standard 2 audio channels in E-Prime? I would ideally like to output to 8 separate channels using a 7.1 sound card or maybe 2 5.1 cards. It would only ever be one channel at a time. Thanks. Best Regards, Tony Andrews Principal Computer Officer School of Psychology University of Leicester From skinzb at yahoo.com Mon Aug 1 13:16:38 2005 From: skinzb at yahoo.com (Sarah Kinzbrunner) Date: Mon, 1 Aug 2005 06:16:38 -0700 Subject: Eprime Digest - 07/31/05 In-Reply-To: <81201.54456@mail.talkbank.org> Message-ID: If the faces are presented using a slide object, you could probably create an attribute in a list with all possible combinations of the four words to be presented in a random order and reference that in the slide object. I don't know that this would work, but I am doing something simillar with Feedback Display. Hope this helps, Sarah Subject: rating faces - random word placement From: "Michael J. Crowley" Date: Thu, 28 Jul 2005 08:16:34 -0400 Dear List, we are designing a task for eprime in which faces are rated for the emotion they display. There are four words below each item (face), three are foils. We would like the four words to have a random order below the picture. Any suggestions on how to accomplish this would be much appreciated. thank you. Mike Crowley Michael J. Crowley, Ph.D. Yale Child Study Center 230 South Frontage Rd. New Haven, CT 06520 Please be aware that email communication can be intercepted in transmission or misdirected. Please consider communicating any sensitive information by telephone, fax or mail. The information contained in this message may be privileged and confidential. If you are NOT the intended recipient, please notify the sender immediately with a copy to hipaa.security at yale.edu and destroy this message. End of Eprime Digest --------------------------------- Start your day with Yahoo! - make it your home page -------------- next part -------------- An HTML attachment was scrubbed... URL: From michael.crowley at yale.edu Tue Aug 2 19:26:29 2005 From: michael.crowley at yale.edu (michael.crowley at yale.edu) Date: Tue, 2 Aug 2005 15:26:29 -0400 Subject: IOWA gambling task Message-ID: Dear list, there were some emails recently indicating that an eprime version of the IOWA gambling task had been located. If anyone has received this I would be greatful if they would send the program to me backchannel best wishes, Mike Crowley Please be aware that email communication can be intercepted in transmission or misdirected. Please consider communicating any sensitive information by telephone, fax or mail. The information contained in this message may be privileged and confidential. If you are NOT the intended recipient, please notify the sender immediately with a copy to hipaa.security at yale.edu and destroy this message. From macw at mac.com Tue Aug 2 23:44:45 2005 From: macw at mac.com (Brian MacWhinney) Date: Tue, 2 Aug 2005 19:44:45 -0400 Subject: IOWA gambling task In-Reply-To: <1123010789.42efc8e569da8@webmail.med.yale.edu> Message-ID: Dear E-Prime List, The Iowa Gambling task can be downloaded from http://step.psy.cmu.edu/scripts-plus/ There are three collections of scripts on step.psy.cmu.edu. One includes classic experiments, a second scripts written by my students, and a third common paradigms like the Iowa Gambling task. If you have E-Prime or PsyScope scripts that you would like to contribute to this script collection, please send them to me and I will include them. Many thanks. --Brian MacWhinney, CMU On Aug 2, 2005, at 3:26 PM, michael.crowley at yale.edu wrote: > Dear list, > > there were some emails recently indicating that an eprime version > of the IOWA > gambling task had been located. If anyone has received this I > would be > greatful if they would send the program to me backchannel > > best wishes, > > Mike Crowley > > > > > Please be aware that email communication can be > intercepted in transmission or misdirected. Please > consider communicating any sensitive information > by telephone, fax or mail. The information > contained in this message may be privileged and > confidential. If you are NOT the intended > recipient, please notify the sender immediately > with a copy to hipaa.security at yale.edu and destroy > this message. > > From connieduncan at mail.nih.gov Wed Aug 3 18:38:01 2005 From: connieduncan at mail.nih.gov (Connie C. Duncan) Date: Wed, 3 Aug 2005 14:38:01 -0400 Subject: n back tasks Message-ID: Dear List, Does anyone have eprime versions of the 0-, 1-, 2-, and 3-back tasks that they would share with me? I would love to have practice and standard versions of each task. Thank you in advance. With best wishes, Connie Duncan From macw at mac.com Wed Aug 3 19:39:45 2005 From: macw at mac.com (Brian MacWhinney) Date: Wed, 3 Aug 2005 15:39:45 -0400 Subject: n back tasks In-Reply-To: Message-ID: Dear Connie and others, As I stated in my message from yesterday, we have many of these common patterns (including the n-back) already on the server. Rather than circulating these about in a person-to-person fashion, I think it makes a lot more sense to have standard examples available to everyone. To further facilitate this process, it would really be nice if people who have developed scripts for widely used paradigms could contribute those to the collection. So, if any of you have scripts of this type, please send them to me for inclusion. Many thanks, Brian MacWhinney, CMU On Aug 3, 2005, at 2:38 PM, Connie C. Duncan wrote: > Dear List, > > Does anyone have eprime versions of the 0-, 1-, 2-, and 3-back tasks > that they would share with me? I would love to have practice and > standard versions of each task. Thank you in advance. > > With best wishes, > > Connie Duncan > > > From macw at mac.com Wed Aug 3 22:29:28 2005 From: macw at mac.com (Brian MacWhinney) Date: Wed, 3 Aug 2005 18:29:28 -0400 Subject: updated n-back Message-ID: Ben Robinson, who had contributed the original version of the n-back task on the server, has just now sent me an updated version, which I copied to the server. Many thanks to Ben for this contribution. --Brian MacWhinney From emhogan at artsci.wustl.edu Mon Aug 8 20:23:02 2005 From: emhogan at artsci.wustl.edu (Ellen M. Hogan) Date: Mon, 8 Aug 2005 15:23:02 -0500 Subject: IOWA gambling task In-Reply-To: <1123010789.42efc8e569da8@webmail.med.yale.edu> Message-ID: It is located at : http://step.psy.cmu.edu/scripts-plus/ It is #7 Ellen On Tue, 2 Aug 2005 michael.crowley at yale.edu wrote: > Dear list, > > there were some emails recently indicating that an eprime version of the IOWA > gambling task had been located. If anyone has received this I would be > greatful if they would send the program to me backchannel > > best wishes, > > Mike Crowley > > > > > Please be aware that email communication can be > intercepted in transmission or misdirected. Please > consider communicating any sensitive information > by telephone, fax or mail. The information > contained in this message may be privileged and > confidential. If you are NOT the intended > recipient, please notify the sender immediately > with a copy to hipaa.security at yale.edu and destroy > this message. > From eddie at ling.ed.ac.uk Tue Aug 16 11:49:50 2005 From: eddie at ling.ed.ac.uk (Eddie Dubourg) Date: Tue, 16 Aug 2005 12:49:50 +0100 Subject: Strange errors Message-ID: I've been sent a script to see if I can help with it's development. I unpacked it, I edited slightly, and then tried to run it. I received no errors during the build phase, but when I come to run it I get a dialog that says:- ERROR: The datafile did not convert! FILE: experiment-1-1.txt It is recommended that you recover you data with the E-Recovery utility and then The following error occurred while converting the data file: Error Message: Error occurred reading text file - unexpected end of file. Line Number 22 Error Number 10 Line 22 is the line "Option CStrings On" below the comments at the start of the experiment. Oddly, cutting off the comments in the .ebs file made no difference, the errors were at line22 again. I've tried saving it as a new file. No Joy (6 times) I've checked the file space is read/write. No Joy I've moved it to several different machines. No Joy I've checked for differences between this and the headers on another experiment, couldn't see any, cut and pasted the headers between files. No Joy Copied the entire text to another empty file. No Joy Examined the file in a hex editor for a hidden character. What basic step am I missing? Eddie Dubourg From BRobinso at mprc.umaryland.edu Tue Aug 16 12:46:30 2005 From: BRobinso at mprc.umaryland.edu (Ben Robinson) Date: Tue, 16 Aug 2005 08:46:30 -0400 Subject: Strange errors Message-ID: generally, i think, you get that first error (the datafile did not convert!) when you run an e-run script for which an older datafile has already been created and which is currently also open, or running. that is, if your script is named "eprimescript.ebs", and you have a datafile already opened on the desktop called "eprimescript-1-1.edat", then when you run "eprimescript.ebs" as subject 1, session 1, just to see if the script is working the script will run fine right up until the end, at which point it will try and fail to create a new datafile by the same name as the datafile you've already got opened on your desktop. the further errors are unfamiliar to me. >>> "Eddie Dubourg" 8/16/2005 7:49 AM >>> I've been sent a script to see if I can help with it's development. I unpacked it, I edited slightly, and then tried to run it. I received no errors during the build phase, but when I come to run it I get a dialog that says:- ERROR: The datafile did not convert! FILE: experiment-1-1.txt It is recommended that you recover you data with the E-Recovery utility and then The following error occurred while converting the data file: Error Message: Error occurred reading text file - unexpected end of file. Line Number 22 Error Number 10 Line 22 is the line "Option CStrings On" below the comments at the start of the experiment. Oddly, cutting off the comments in the .ebs file made no difference, the errors were at line22 again. I've tried saving it as a new file. No Joy (6 times) I've checked the file space is read/write. No Joy I've moved it to several different machines. No Joy I've checked for differences between this and the headers on another experiment, couldn't see any, cut and pasted the headers between files. No Joy Copied the entire text to another empty file. No Joy Examined the file in a hex editor for a hidden character. What basic step am I missing? Eddie Dubourg -------------- next part -------------- An HTML attachment was scrubbed... URL: From pquain at metz.une.edu.au Wed Aug 17 01:34:43 2005 From: pquain at metz.une.edu.au (Peter Quain) Date: Wed, 17 Aug 2005 11:34:43 +1000 Subject: canvas and 0 duration objects collecting responses Message-ID: Thought this might be of interest (if i've got it right). When presenting stimuli using code (in an Inline object, manipulating the canvas object) pst recommend collecting input using the input masks from an object with zero duration and infinite wait for response immediately preceding the Inline. My immediate (code naive) take on the logic of this was that the dummy object and the screen drawing code executed at the same time, thus synchronising stimulus presentation, the time stamp for calculating RT etc., and, importantly, any marker pulses sent to external equipment. Of course, code execution in e-prime is sequential. The following output comes from running the e-prime example script (adjusted for a single loop) 'CollectInputDuringInLine.es' while time stamping 1) Dummy object (EndFlash) OnsetTime; 2) Start of Inline code execution; 3) Start of vertical retrace where the canvas is drawn to screen: 1)EndFlash.OnsetTime: 5195 2) stamp_1: 5196 3) stamp_2: 5212 This is from a laptop, 2.8gHz, 768mb RAM, 60Hz refresh. The stimuli is drawn to screen on a refresh starting 17ms (1 refresh @ 60Hz) after dummy object's input masks have begun waiting. If the stimuli are drawn near centre of the screen there is a further 7 to 11 ms before the display is available to a subject. So @ 60Hz there is a possibility of ~25ms desynchrony between 'marking' stimulus onset and stimulus availability. We have timed execution across a number of paradigms using a dummy object and the canvas object. For each paradigm the delay is consistent across trials. In the example above this might 'only' be 25ms, and a constant, so not too much problem for adjusting RTs collected by the dummy object (if you want absolute RTs). However, it still represents an essentially inaccurate (in terms of ms timing) response collection routine, and to the code naive researcher this could lead to problems when it comes to synchronising event presentation and the marking of those events by sending trigger codes to external equipment such as an EEG system. It is standard procedure to record both RTs and EEG epochs from the same time - stimulus onset. So it is tempting to use the Object.OnsetSignalPort method to send a TTL pulse at the time RT is measured from. These pulses need to be held high for a period. For example, Neuroscan recommend 10ms minimum, and we had some analysis software that liked 200ms pulses. The code keeping the pulse high is immediately after the dummy object and while it is running nothing else proceeds. Using a 10ms pulse the dummy object - display available delay in one of our paradigms ballons from 20ms to 38ms (+ 1 missed refresh), a considerable time in EEG research. Forget about 200ms pulses. When using canvas we continue to collect RTs using a dummy object, but we time stamp our code and send TTL pulses when screen drawing code has finished, halfway (stamp_3, below) through the refresh where the screen is drawn. Keeping the pulse high then has no impact on timing of critical events. We adjust RT: RT = RT - (stamp_3 - Object.OnsetTime). Object.OnsetTime: 33808 - open input masks stamp_1: 33809 - begin Inline ... prepare stuff, wait for vertical retrace stamp_2: 33820 - begin vertical retrace; begin execution screen draw code stamp_3: 33828 - finish execution screen draw code; send TTL pulse stamp_4: 33828 - finish execution TTL pulse code; keep high for 10ms stamp_5: 33838 - pull pins low I know very little about input masks, but e-prime advise against writing your own. It would be nice if the canvas object came with the capacity to designate a section of code, say following a screen refresh, as an object in its own right with built in input masks. Does anybody write their own input masks? Peter Peter Quain School of Psychology University of New England Armidale, Australia, 2351 Phone: 02 6773 5193 Fax: 02 6773 3820 From rainer.schneider at uniklinik-freiburg.de Mon Aug 22 13:39:38 2005 From: rainer.schneider at uniklinik-freiburg.de (Dr. Rainer Schneider) Date: Mon, 22 Aug 2005 15:39:38 +0200 Subject: Request Message-ID: Hi everybody, The question I have may appear rather mundane. I am looking for a (not to difficult) reaction-response paradigm task employed as baseline and post-treatment tasks. The tasks is used to see whether caffeine has any effects on reaction time. I am looking for a neat (not necessarily linguistic) task which would take about 15 min to complete. Although I could use the same tasks at both measurements, I would prefer split-halves standardized for difficulty. Alternatively, I was thinking of arithmetical tasks (say addition and substraction) where odd numbered results would have to be responded to with another key than even mumbered. Does anyone have knowledge of such a tasks or has even developed one to share? I am employing E-prime for the first time and have not much experience with it. Kind regards, Rainer From ilyako at eden.rutgers.edu Fri Aug 26 19:16:41 2005 From: ilyako at eden.rutgers.edu (Ilya Korsunskiy) Date: Fri, 26 Aug 2005 15:16:41 -0400 Subject: error running Message-ID: Hi all! I keep getting an error message whenever I run a set up along the lines of "could not create Direct X object." The computer on which I'm running it does not have proper drivers for the monitor, so I think that might be it. Has anyone had this problem before? Thanks for the input Ilya From katzlb at upmc.edu Mon Aug 29 17:27:39 2005 From: katzlb at upmc.edu (Katz, Lena B.) Date: Mon, 29 Aug 2005 13:27:39 -0400 Subject: Response Property Message-ID: What does the response property return when there is no response (for a textbox or slide)? Thanks! Lena From asa8 at leicester.ac.uk Mon Aug 1 11:45:54 2005 From: asa8 at leicester.ac.uk (Andrews, A.S.) Date: Mon, 1 Aug 2005 12:45:54 +0100 Subject: Multi-channel audio in E-Prime? Message-ID: Hi Is it possible to output to more than the standard 2 audio channels in E-Prime? I would ideally like to output to 8 separate channels using a 7.1 sound card or maybe 2 5.1 cards. It would only ever be one channel at a time. Thanks. Best Regards, Tony Andrews Principal Computer Officer School of Psychology University of Leicester From s.johnston at bangor.ac.uk Mon Aug 1 11:56:01 2005 From: s.johnston at bangor.ac.uk (Steve Johnston) Date: Mon, 1 Aug 2005 12:56:01 +0100 Subject: Multi-channel audio in E-Prime? In-Reply-To: <6728E9270FDF8D44A41AF135DBB553E8049D4D33@sumac.cfs.le.ac.uk> Message-ID: Probably the best/easiest ways of doing this is to purchase something like a creative sound blaster live card. It basically puts a software system in the way of the playing software and the hardware so that you can modify any playing sound. You could, and this is how we implemented a sound experiment, play the sound in standard stereo (as far as eprime is concerned) and then use the creative EAX system to upmix to 6.1 or whatever you want. Admittedly it's not going to compete with hollywood movies for upmix quality, but if you fiddle with the settings it is rather good and provides a convincing surround sound effect. Steve ------- Dr Stephen Johnston Psychology Department University of Wales Penrallt Road Bangor Gwynedd, LL57 2AS UK -----Original Message----- From: eprime at mail.talkbank.org [mailto:eprime at mail.talkbank.org] On Behalf Of Andrews, A.S. Sent: 01 August 2005 12:46 To: eprime at mail.talkbank.org Subject: Multi-channel audio in E-Prime? Hi Is it possible to output to more than the standard 2 audio channels in E-Prime? I would ideally like to output to 8 separate channels using a 7.1 sound card or maybe 2 5.1 cards. It would only ever be one channel at a time. Thanks. Best Regards, Tony Andrews Principal Computer Officer School of Psychology University of Leicester From skinzb at yahoo.com Mon Aug 1 13:16:38 2005 From: skinzb at yahoo.com (Sarah Kinzbrunner) Date: Mon, 1 Aug 2005 06:16:38 -0700 Subject: Eprime Digest - 07/31/05 In-Reply-To: <81201.54456@mail.talkbank.org> Message-ID: If the faces are presented using a slide object, you could probably create an attribute in a list with all possible combinations of the four words to be presented in a random order and reference that in the slide object. I don't know that this would work, but I am doing something simillar with Feedback Display. Hope this helps, Sarah Subject: rating faces - random word placement From: "Michael J. Crowley" Date: Thu, 28 Jul 2005 08:16:34 -0400 Dear List, we are designing a task for eprime in which faces are rated for the emotion they display. There are four words below each item (face), three are foils. We would like the four words to have a random order below the picture. Any suggestions on how to accomplish this would be much appreciated. thank you. Mike Crowley Michael J. Crowley, Ph.D. Yale Child Study Center 230 South Frontage Rd. New Haven, CT 06520 Please be aware that email communication can be intercepted in transmission or misdirected. Please consider communicating any sensitive information by telephone, fax or mail. The information contained in this message may be privileged and confidential. If you are NOT the intended recipient, please notify the sender immediately with a copy to hipaa.security at yale.edu and destroy this message. End of Eprime Digest --------------------------------- Start your day with Yahoo! - make it your home page -------------- next part -------------- An HTML attachment was scrubbed... URL: From michael.crowley at yale.edu Tue Aug 2 19:26:29 2005 From: michael.crowley at yale.edu (michael.crowley at yale.edu) Date: Tue, 2 Aug 2005 15:26:29 -0400 Subject: IOWA gambling task Message-ID: Dear list, there were some emails recently indicating that an eprime version of the IOWA gambling task had been located. If anyone has received this I would be greatful if they would send the program to me backchannel best wishes, Mike Crowley Please be aware that email communication can be intercepted in transmission or misdirected. Please consider communicating any sensitive information by telephone, fax or mail. The information contained in this message may be privileged and confidential. If you are NOT the intended recipient, please notify the sender immediately with a copy to hipaa.security at yale.edu and destroy this message. From macw at mac.com Tue Aug 2 23:44:45 2005 From: macw at mac.com (Brian MacWhinney) Date: Tue, 2 Aug 2005 19:44:45 -0400 Subject: IOWA gambling task In-Reply-To: <1123010789.42efc8e569da8@webmail.med.yale.edu> Message-ID: Dear E-Prime List, The Iowa Gambling task can be downloaded from http://step.psy.cmu.edu/scripts-plus/ There are three collections of scripts on step.psy.cmu.edu. One includes classic experiments, a second scripts written by my students, and a third common paradigms like the Iowa Gambling task. If you have E-Prime or PsyScope scripts that you would like to contribute to this script collection, please send them to me and I will include them. Many thanks. --Brian MacWhinney, CMU On Aug 2, 2005, at 3:26 PM, michael.crowley at yale.edu wrote: > Dear list, > > there were some emails recently indicating that an eprime version > of the IOWA > gambling task had been located. If anyone has received this I > would be > greatful if they would send the program to me backchannel > > best wishes, > > Mike Crowley > > > > > Please be aware that email communication can be > intercepted in transmission or misdirected. Please > consider communicating any sensitive information > by telephone, fax or mail. The information > contained in this message may be privileged and > confidential. If you are NOT the intended > recipient, please notify the sender immediately > with a copy to hipaa.security at yale.edu and destroy > this message. > > From connieduncan at mail.nih.gov Wed Aug 3 18:38:01 2005 From: connieduncan at mail.nih.gov (Connie C. Duncan) Date: Wed, 3 Aug 2005 14:38:01 -0400 Subject: n back tasks Message-ID: Dear List, Does anyone have eprime versions of the 0-, 1-, 2-, and 3-back tasks that they would share with me? I would love to have practice and standard versions of each task. Thank you in advance. With best wishes, Connie Duncan From macw at mac.com Wed Aug 3 19:39:45 2005 From: macw at mac.com (Brian MacWhinney) Date: Wed, 3 Aug 2005 15:39:45 -0400 Subject: n back tasks In-Reply-To: Message-ID: Dear Connie and others, As I stated in my message from yesterday, we have many of these common patterns (including the n-back) already on the server. Rather than circulating these about in a person-to-person fashion, I think it makes a lot more sense to have standard examples available to everyone. To further facilitate this process, it would really be nice if people who have developed scripts for widely used paradigms could contribute those to the collection. So, if any of you have scripts of this type, please send them to me for inclusion. Many thanks, Brian MacWhinney, CMU On Aug 3, 2005, at 2:38 PM, Connie C. Duncan wrote: > Dear List, > > Does anyone have eprime versions of the 0-, 1-, 2-, and 3-back tasks > that they would share with me? I would love to have practice and > standard versions of each task. Thank you in advance. > > With best wishes, > > Connie Duncan > > > From macw at mac.com Wed Aug 3 22:29:28 2005 From: macw at mac.com (Brian MacWhinney) Date: Wed, 3 Aug 2005 18:29:28 -0400 Subject: updated n-back Message-ID: Ben Robinson, who had contributed the original version of the n-back task on the server, has just now sent me an updated version, which I copied to the server. Many thanks to Ben for this contribution. --Brian MacWhinney From emhogan at artsci.wustl.edu Mon Aug 8 20:23:02 2005 From: emhogan at artsci.wustl.edu (Ellen M. Hogan) Date: Mon, 8 Aug 2005 15:23:02 -0500 Subject: IOWA gambling task In-Reply-To: <1123010789.42efc8e569da8@webmail.med.yale.edu> Message-ID: It is located at : http://step.psy.cmu.edu/scripts-plus/ It is #7 Ellen On Tue, 2 Aug 2005 michael.crowley at yale.edu wrote: > Dear list, > > there were some emails recently indicating that an eprime version of the IOWA > gambling task had been located. If anyone has received this I would be > greatful if they would send the program to me backchannel > > best wishes, > > Mike Crowley > > > > > Please be aware that email communication can be > intercepted in transmission or misdirected. Please > consider communicating any sensitive information > by telephone, fax or mail. The information > contained in this message may be privileged and > confidential. If you are NOT the intended > recipient, please notify the sender immediately > with a copy to hipaa.security at yale.edu and destroy > this message. > From eddie at ling.ed.ac.uk Tue Aug 16 11:49:50 2005 From: eddie at ling.ed.ac.uk (Eddie Dubourg) Date: Tue, 16 Aug 2005 12:49:50 +0100 Subject: Strange errors Message-ID: I've been sent a script to see if I can help with it's development. I unpacked it, I edited slightly, and then tried to run it. I received no errors during the build phase, but when I come to run it I get a dialog that says:- ERROR: The datafile did not convert! FILE: experiment-1-1.txt It is recommended that you recover you data with the E-Recovery utility and then The following error occurred while converting the data file: Error Message: Error occurred reading text file - unexpected end of file. Line Number 22 Error Number 10 Line 22 is the line "Option CStrings On" below the comments at the start of the experiment. Oddly, cutting off the comments in the .ebs file made no difference, the errors were at line22 again. I've tried saving it as a new file. No Joy (6 times) I've checked the file space is read/write. No Joy I've moved it to several different machines. No Joy I've checked for differences between this and the headers on another experiment, couldn't see any, cut and pasted the headers between files. No Joy Copied the entire text to another empty file. No Joy Examined the file in a hex editor for a hidden character. What basic step am I missing? Eddie Dubourg From BRobinso at mprc.umaryland.edu Tue Aug 16 12:46:30 2005 From: BRobinso at mprc.umaryland.edu (Ben Robinson) Date: Tue, 16 Aug 2005 08:46:30 -0400 Subject: Strange errors Message-ID: generally, i think, you get that first error (the datafile did not convert!) when you run an e-run script for which an older datafile has already been created and which is currently also open, or running. that is, if your script is named "eprimescript.ebs", and you have a datafile already opened on the desktop called "eprimescript-1-1.edat", then when you run "eprimescript.ebs" as subject 1, session 1, just to see if the script is working the script will run fine right up until the end, at which point it will try and fail to create a new datafile by the same name as the datafile you've already got opened on your desktop. the further errors are unfamiliar to me. >>> "Eddie Dubourg" 8/16/2005 7:49 AM >>> I've been sent a script to see if I can help with it's development. I unpacked it, I edited slightly, and then tried to run it. I received no errors during the build phase, but when I come to run it I get a dialog that says:- ERROR: The datafile did not convert! FILE: experiment-1-1.txt It is recommended that you recover you data with the E-Recovery utility and then The following error occurred while converting the data file: Error Message: Error occurred reading text file - unexpected end of file. Line Number 22 Error Number 10 Line 22 is the line "Option CStrings On" below the comments at the start of the experiment. Oddly, cutting off the comments in the .ebs file made no difference, the errors were at line22 again. I've tried saving it as a new file. No Joy (6 times) I've checked the file space is read/write. No Joy I've moved it to several different machines. No Joy I've checked for differences between this and the headers on another experiment, couldn't see any, cut and pasted the headers between files. No Joy Copied the entire text to another empty file. No Joy Examined the file in a hex editor for a hidden character. What basic step am I missing? Eddie Dubourg -------------- next part -------------- An HTML attachment was scrubbed... URL: From pquain at metz.une.edu.au Wed Aug 17 01:34:43 2005 From: pquain at metz.une.edu.au (Peter Quain) Date: Wed, 17 Aug 2005 11:34:43 +1000 Subject: canvas and 0 duration objects collecting responses Message-ID: Thought this might be of interest (if i've got it right). When presenting stimuli using code (in an Inline object, manipulating the canvas object) pst recommend collecting input using the input masks from an object with zero duration and infinite wait for response immediately preceding the Inline. My immediate (code naive) take on the logic of this was that the dummy object and the screen drawing code executed at the same time, thus synchronising stimulus presentation, the time stamp for calculating RT etc., and, importantly, any marker pulses sent to external equipment. Of course, code execution in e-prime is sequential. The following output comes from running the e-prime example script (adjusted for a single loop) 'CollectInputDuringInLine.es' while time stamping 1) Dummy object (EndFlash) OnsetTime; 2) Start of Inline code execution; 3) Start of vertical retrace where the canvas is drawn to screen: 1)EndFlash.OnsetTime: 5195 2) stamp_1: 5196 3) stamp_2: 5212 This is from a laptop, 2.8gHz, 768mb RAM, 60Hz refresh. The stimuli is drawn to screen on a refresh starting 17ms (1 refresh @ 60Hz) after dummy object's input masks have begun waiting. If the stimuli are drawn near centre of the screen there is a further 7 to 11 ms before the display is available to a subject. So @ 60Hz there is a possibility of ~25ms desynchrony between 'marking' stimulus onset and stimulus availability. We have timed execution across a number of paradigms using a dummy object and the canvas object. For each paradigm the delay is consistent across trials. In the example above this might 'only' be 25ms, and a constant, so not too much problem for adjusting RTs collected by the dummy object (if you want absolute RTs). However, it still represents an essentially inaccurate (in terms of ms timing) response collection routine, and to the code naive researcher this could lead to problems when it comes to synchronising event presentation and the marking of those events by sending trigger codes to external equipment such as an EEG system. It is standard procedure to record both RTs and EEG epochs from the same time - stimulus onset. So it is tempting to use the Object.OnsetSignalPort method to send a TTL pulse at the time RT is measured from. These pulses need to be held high for a period. For example, Neuroscan recommend 10ms minimum, and we had some analysis software that liked 200ms pulses. The code keeping the pulse high is immediately after the dummy object and while it is running nothing else proceeds. Using a 10ms pulse the dummy object - display available delay in one of our paradigms ballons from 20ms to 38ms (+ 1 missed refresh), a considerable time in EEG research. Forget about 200ms pulses. When using canvas we continue to collect RTs using a dummy object, but we time stamp our code and send TTL pulses when screen drawing code has finished, halfway (stamp_3, below) through the refresh where the screen is drawn. Keeping the pulse high then has no impact on timing of critical events. We adjust RT: RT = RT - (stamp_3 - Object.OnsetTime). Object.OnsetTime: 33808 - open input masks stamp_1: 33809 - begin Inline ... prepare stuff, wait for vertical retrace stamp_2: 33820 - begin vertical retrace; begin execution screen draw code stamp_3: 33828 - finish execution screen draw code; send TTL pulse stamp_4: 33828 - finish execution TTL pulse code; keep high for 10ms stamp_5: 33838 - pull pins low I know very little about input masks, but e-prime advise against writing your own. It would be nice if the canvas object came with the capacity to designate a section of code, say following a screen refresh, as an object in its own right with built in input masks. Does anybody write their own input masks? Peter Peter Quain School of Psychology University of New England Armidale, Australia, 2351 Phone: 02 6773 5193 Fax: 02 6773 3820 From rainer.schneider at uniklinik-freiburg.de Mon Aug 22 13:39:38 2005 From: rainer.schneider at uniklinik-freiburg.de (Dr. Rainer Schneider) Date: Mon, 22 Aug 2005 15:39:38 +0200 Subject: Request Message-ID: Hi everybody, The question I have may appear rather mundane. I am looking for a (not to difficult) reaction-response paradigm task employed as baseline and post-treatment tasks. The tasks is used to see whether caffeine has any effects on reaction time. I am looking for a neat (not necessarily linguistic) task which would take about 15 min to complete. Although I could use the same tasks at both measurements, I would prefer split-halves standardized for difficulty. Alternatively, I was thinking of arithmetical tasks (say addition and substraction) where odd numbered results would have to be responded to with another key than even mumbered. Does anyone have knowledge of such a tasks or has even developed one to share? I am employing E-prime for the first time and have not much experience with it. Kind regards, Rainer From ilyako at eden.rutgers.edu Fri Aug 26 19:16:41 2005 From: ilyako at eden.rutgers.edu (Ilya Korsunskiy) Date: Fri, 26 Aug 2005 15:16:41 -0400 Subject: error running Message-ID: Hi all! I keep getting an error message whenever I run a set up along the lines of "could not create Direct X object." The computer on which I'm running it does not have proper drivers for the monitor, so I think that might be it. Has anyone had this problem before? Thanks for the input Ilya From katzlb at upmc.edu Mon Aug 29 17:27:39 2005 From: katzlb at upmc.edu (Katz, Lena B.) Date: Mon, 29 Aug 2005 13:27:39 -0400 Subject: Response Property Message-ID: What does the response property return when there is no response (for a textbox or slide)? Thanks! Lena