From Suzanne.Camou at UCHSC.edu Thu May 17 18:00:18 2001 From: Suzanne.Camou at UCHSC.edu (Suzanne.Camou at UCHSC.edu) Date: Thu, 17 May 2001 12:00:18 -0600 Subject: Multi-key response Message-ID: Hello everyone, I am currently creating a behavioral program that requires participants to respond with a 3 to 4 digit response. However, I have been unable to get the logging system to record more than one character responses. Does anyone know how to do this? Thanks, Suzanne Biomagnetic Imaging Lab From Fredrik.Ullen at neuro.ki.se Thu May 17 19:59:42 2001 From: Fredrik.Ullen at neuro.ki.se (Fredrik =?iso-8859-1?Q?Ull=E9n?=) Date: Thu, 17 May 2001 21:59:42 +0200 Subject: Multi-key response In-Reply-To: Message-ID: At 12:00 2001-05-17 -0600, Suzanne.Camou at UCHSC.edu wrote: >Hello everyone, > I am currently creating a behavioral program that requires participants >to respond with a 3 to 4 digit response. However, I have been unable to get >the logging system to record more than one character responses. Does anyone >know how to do this? > >Thanks, >Suzanne >Biomagnetic Imaging Lab Hi, I've had exactly the same problem. If you don't need to log the RTs of each digit, it works fine. I don't have the E-Prime manual here right now, but as I remember what you do is by setting the number of keystrokes in Advanced options for the corresponding object. If you wish to record RTs and such, you need to make a chain of objects. Apparently this problem is solved in the next version of E-Prime. GOod luck Fredrik ------------------------------------------------------- Fredrik Ullén, PhD, Pianist Dept of Neuroscience/Dept of Woman and Child Health Karolinska Institutet S-171 77 Stockholm SWEDEN ph +46-8-517 773 55 fax +46-8-517 773 49 (not personal) email Fredrik.Ullen at neuro.ki.se web site http://www.nada.kth.se/~freull ------------------------------------------------------- From M.Vink at azu.nl Wed May 23 10:09:55 2001 From: M.Vink at azu.nl (Matthijs Vink) Date: Wed, 23 May 2001 12:09:55 +0200 Subject: picture show Message-ID: Dear all, We are trying to present a lot of pictures. Each picture is presented on the screen for 5 secs, followed by another picture of a buttonbox. Subjects can respond only when the buttonbox is presented. We have approx. 140 images (1024*768*256), which is almost 100Mb. The first couple of images are presented correctly, while later images stay on the screen for more than 5 secs. We run the Eprime prog on a PIII 500 MHz, 128 Mb mem. What is the best way to present the pictures without slowing down after a while. Another question: We want to trigger the experiment with our MRI scanner, and also collect responses with a buttonbox. Both signals enter the cpu through the serial port. Is it possible to make a slide (or whatever) which allows for the collection of a buttonbox response and which terminates after a trigger signal? Thanks in advance, Matthijs Matthijs Vink Functional Imaging Dept. Psychiatry University Medical Center Room A.01.126 Heidelberglaan 100 3584 CX Utrecht The Netherlands tel. (31) 30 250 7121 (work) tel. (31) 30 250 8352 (work) tel. (31) 30 231 0171 (home) www.fMRI.nl From Suzanne.Camou at UCHSC.edu Thu May 17 18:00:18 2001 From: Suzanne.Camou at UCHSC.edu (Suzanne.Camou at UCHSC.edu) Date: Thu, 17 May 2001 12:00:18 -0600 Subject: Multi-key response Message-ID: Hello everyone, I am currently creating a behavioral program that requires participants to respond with a 3 to 4 digit response. However, I have been unable to get the logging system to record more than one character responses. Does anyone know how to do this? Thanks, Suzanne Biomagnetic Imaging Lab From Fredrik.Ullen at neuro.ki.se Thu May 17 19:59:42 2001 From: Fredrik.Ullen at neuro.ki.se (Fredrik =?iso-8859-1?Q?Ull=E9n?=) Date: Thu, 17 May 2001 21:59:42 +0200 Subject: Multi-key response In-Reply-To: Message-ID: At 12:00 2001-05-17 -0600, Suzanne.Camou at UCHSC.edu wrote: >Hello everyone, > I am currently creating a behavioral program that requires participants >to respond with a 3 to 4 digit response. However, I have been unable to get >the logging system to record more than one character responses. Does anyone >know how to do this? > >Thanks, >Suzanne >Biomagnetic Imaging Lab Hi, I've had exactly the same problem. If you don't need to log the RTs of each digit, it works fine. I don't have the E-Prime manual here right now, but as I remember what you do is by setting the number of keystrokes in Advanced options for the corresponding object. If you wish to record RTs and such, you need to make a chain of objects. Apparently this problem is solved in the next version of E-Prime. GOod luck Fredrik ------------------------------------------------------- Fredrik Ull?n, PhD, Pianist Dept of Neuroscience/Dept of Woman and Child Health Karolinska Institutet S-171 77 Stockholm SWEDEN ph +46-8-517 773 55 fax +46-8-517 773 49 (not personal) email Fredrik.Ullen at neuro.ki.se web site http://www.nada.kth.se/~freull ------------------------------------------------------- From M.Vink at azu.nl Wed May 23 10:09:55 2001 From: M.Vink at azu.nl (Matthijs Vink) Date: Wed, 23 May 2001 12:09:55 +0200 Subject: picture show Message-ID: Dear all, We are trying to present a lot of pictures. Each picture is presented on the screen for 5 secs, followed by another picture of a buttonbox. Subjects can respond only when the buttonbox is presented. We have approx. 140 images (1024*768*256), which is almost 100Mb. The first couple of images are presented correctly, while later images stay on the screen for more than 5 secs. We run the Eprime prog on a PIII 500 MHz, 128 Mb mem. What is the best way to present the pictures without slowing down after a while. Another question: We want to trigger the experiment with our MRI scanner, and also collect responses with a buttonbox. Both signals enter the cpu through the serial port. Is it possible to make a slide (or whatever) which allows for the collection of a buttonbox response and which terminates after a trigger signal? Thanks in advance, Matthijs Matthijs Vink Functional Imaging Dept. Psychiatry University Medical Center Room A.01.126 Heidelberglaan 100 3584 CX Utrecht The Netherlands tel. (31) 30 250 7121 (work) tel. (31) 30 250 8352 (work) tel. (31) 30 231 0171 (home) www.fMRI.nl