The Effects of Presentation Rate During Word and Pseudoword Reading: - PDF document

See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/11837943 The Effects of Presentation Rate During Word and Pseudoword Reading: A Comparison of PET and fMRI Article in Journal of Cognitive Neuroscience · February 2000 DOI: 10.1162/089892900564000 · Source: PubMed CITATIONS READS 116 255 3 authors , including: Andrea Mechelli Karl J Friston King's College London University College London 210 PUBLICATIONS 15,520 CITATIONS 1,228 PUBLICATIONS 199,695 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Niche Construction in Cognitive Ecosystems View project EuSNN - European School of Network Neuroscience View project All content following this page was uploaded by Karl J Friston on 01 June 2014. The user has requested enhancement of the downloaded file.

Mechelli, A., Friston, K.J., and Price, C.J. (2000) “The effects of presentation rate during word and pseudoword reading: A comparison of PET and fMRI", Journal of Cognitive Neuroscience, 12 Supplement 2, pp. 145-156. Accession #: 2-2000-11189 R E L E A S E D A T E M a r c h 9 , 2 0 0 1 RE EL LE EA AS SE E D DA AT TE E M Ma ar rc ch h 9 9, , 2 20 00 01 1 R The fMRI Data Center 6162 Moore Hall Hanover, NH 03755-3553 Telephone: (603) 646-0170

Mechelli, A., Friston, K.J., and Price, C.J. (2000) "The effects of presentation rate during word and pseudoword reading: A comparison of PET and fMRI", Journal of Cognitive Neuroscience, 12 Supplement 2, pp. 145-156. fMRIDC Data Distribution License and Guidelines Data Sharing Policy : The mission of the fMRI Data Center is to promote data sharing among scientists interested in studies of the human brain using functional neuroimaging during cognitive neuropsychological paradigms. The Data Center aims to maintain the scientific record of published fMRI studies so that they may be made freely available for people to confirm results, perform subsequent analyses, and subject the data to comparison across studies. The data you have received contains the information needed to, in principle, be able to replicate the results reported in the published research article. You are free to distribute these data without restriction provided that you adhere to several key guidelines: Original Author Credit : Failure to cite or give credit to the original authors who collected these data in subsequent published articles or presentations is on par with plagiarism, is unacceptable, and unprofessional. Though the Data Center is not in a position to police every intended use of these data, we trust that the scientific community will ensure that this does not happen. However, we do insist that researchers re-analyzing these published data reference the original published article and reference the fMRI Data Center study accession number. Human Subjects Protection : The data you have received have been stripped of any and all information that could be used to identify the subjects who took part in the original investigation. Moreover, structural images of the head have been stripped of facial features and skull so that they, too, cannot be used to identify the individual. This has been done to satisfy United States Federal Regulations pertaining to the protection of human subjects who participate in research studies (U.S. 45 CFR 46). The researcher is cautioned that contact with the original authors with the intent of forming collaboration on additional analyses of study data in which the identity of subjects might be revealed may violate regulations on human subject’s research. You are strongly advised to contact your institution’s committee on research involving human subjects prior to the exchange of identifying information with the original authors. Accompanying Study Description PDF Document : The data making up this study are of limited value unless they are accompanied by documentation that puts them into the context of how they were collected and the framework of the underlying experimental design. We encourage researchers to always provide the accompanying PDF document that describes the complete study details whenever they are sharing these data with their colleagues. In this way, the recognition of the work of the original authors may be preserved, the experimental paradigm may most accurately be represented and remain in agreement with the published description, as well as indicate the role of the Data Center. License Information : To ensure that others are informed of these data sharing policies, please include a copy of this license page when sharing this data with other parties. Your participation in practicing these data sharing policies will be of great help in making the fMRI Data Center effort a success! THE DATA PROVIDED ON THIS CD IS FREELY DISTRIBUTED. THIS DATA IS DISTRIBUTED IN THE HOPE THAT IT WILL BE USEFUL BUT WITHOUT ANY WARRANTY. THIS DATA IS PROVIDED BY THE fMRI DATA CENTER (fMRIDC)`”AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE fMRIDC BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DATA, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. fMRIDC Accession 2-2000-11189 Page 2 of 18

Mechelli, A., Friston, K.J., and Price, C.J. (2000) "The effects of presentation rate during word and pseudoword reading: A comparison of PET and fMRI", Journal of Cognitive Neuroscience, 12 Supplement 2, pp. 145-156. Data Layout in Distribution The data provided as part of this distribution is archived in a hierarchical collection of directories. Each subject’s data is stored within a particular experiment directory. All of the data pertaining to a particular subject can be found within a session directory (all session directories are found within a subject’s directory). An example of such a layout can be found below: Top Level Directory [ CD Accession Number ] Experiment Group 1 [ exp1-1 ] Subject 1 Subject N [ AccessionNumber-1 ] [ AccessionNumber-N ] Session 1 Session N [ session1 ] [ sessionN ] Reconstructed Data Pre-Processed Data [ raw ] [ pre-processed ] Contains gzipped tar archives Contains gzipped tar archives Anatomical Data Statistics [ anatomy ] [ statistics ] Behavioral Data Stimulus Data [ behavior ] [ stimuli ] Experiment Group 2 [ exp1-2 ] Template Files [templates] Normalization Template Images fMRIDC Accession #2-2000-11189 Page 3 of 18

Mechelli, A., Friston, K.J., and Price, C.J. (2000) "The effects of presentation rate during word and pseudoword reading: A comparison of PET and fMRI", Journal of Cognitive Neuroscience, 12 Supplement 2, pp. 145-156. Extracting the data The data contained in this release may be contained in gzipped tar files ( filename.tgz ). Data from these compressed archives can be extracted on various systems by following the instructions listed below. All the software used in the extraction is freeware/shareware and can be downloaded from the associated URLs. If using UNIX/Linux • First use gzip (http://www.gzip.org/) e.g. % gunzip filename.tgz {return} This should produce filename.tar • Then untar using tar (ftp://prep.ai.mit.edu/pub/gnu/tar/) e.g. % tar -xvf filename.tar {return} This should extract all the individual image files from the archive If using Windows 1. Use PowerArchiver (http://www.zdnet.com/downloads/stories/info/0,,000YH3,.html) to extract the files from the .tgz archive. 2. To view images on the PC without Matlab you can use MRIcro (http://www.psychology.nottingham.ac.uk/staff/cr1/mricro.html) If using MacOS 1. Use Stuffit Expander to extract the files from the .tgz archive (http://hotfiles.zdnet.com/cgi- bin/texis/swlib/hotfiles/info.html?fcode=MC10487&b=mac). 2. To view images on the Mac without Matlab you can use ScanStat (http://porkpie.loni.ucla.edu/scanSTAT/) Some Freeware Tools Available to Access the Data Below is a list of some freely available tools one can use to access and analyze the data. More information on software can be found at the Functional MRI (fMRI) Network (http://www.duke.edu/~richwarp/fmri.html#SOFTWARE). • With Matlab (http://www.mathworks.com), one can use SPM (http://www.fil.ion.ucl.ac.uk/spm/) • AFNI (http://varda.biophysics.mcw.edu/~cox/afni_howtoget.html) • Voxbo (http://www.voxbo.org/) fMRIDC Accession #2-2000-11189 Page 4 of 18