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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


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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

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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 R RE E EL L LE E EA A AS S SE E E D D DA A AT T TE E E M M Ma a ar r rc c ch h h 9 9 9, , , 2 2 20 00 01 1 1

The fMRI Data Center 6162 Moore Hall Hanover, NH 03755-3553 Telephone: (603) 646-0170

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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. 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

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.

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License Information: To ensure that others are informed of these data sharing policies, please include a copy of

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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 Accession #2-2000-11189 Page 3 of 18

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:

Reconstructed Data [raw] Contains gzipped tar archives Pre-Processed Data [pre-processed ] Contains gzipped tar archives Anatomical Data [anatomy] Statistics [statistics ] Behavioral Data [behavior] Stimulus Data [stimuli] Session 1 [session1 ] Session N [sessionN ] Subject 1 [AccessionNumber-1 ] Subject N [AccessionNumber-N ] Experiment Group 1 [exp1-1] Experiment Group 2 [exp1-2] Template Files [templates] Normalization Template Images Top Level Directory [CD Accession Number ]

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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 Accession #2-2000-11189 Page 4 of 18

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/)
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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 Accession #2-2000-11189 Page 5 of 18

Table of Contents

fMRIDC Data Distribution License and Guidelines ................................................................................2 Data Layout in Distribution ....................................................................................................................3 Extracting the data..................................................................................................................................4 If using UNIX/Linux ..........................................................................................................................4 If using Windows................................................................................................................................4 If using MacOS...................................................................................................................................4 Some Freeware Tools Available to Access the Data............................................................................4 Table of Contents.................................................................................................................................5 Experiment Information......................................................................................................................7 Abstract ..............................................................................................................................................7 Keywords ...........................................................................................................................................7 Scanner Information............................................................................................................................8 Experimental Protocols .......................................................................................................................9 General Notes...................................................................................................................................9 Rest....................................................................................................................................................9 Stimuli...............................................................................................................................................9 W20 ...................................................................................................................................................9 P20.....................................................................................................................................................9 W40 ...................................................................................................................................................9 P40.....................................................................................................................................................9 W60 ...................................................................................................................................................9 P60...................................................................................................................................................10 Data Processing ....................................................................................................................................10 Pre-Processing Steps.........................................................................................................................10 Reading Task..................................................................................................................................11 Subject Information ...........................................................................................................................13 Subject 01 ........................................................................................................................................13 Scan Session Information ..............................................................................................................13 Scan Series Information.................................................................................................................13 Subject Information ...........................................................................................................................14 Subject 02 ........................................................................................................................................14 Scan Session Information ..............................................................................................................14 Scan Series Information.................................................................................................................14 Subject Information ...........................................................................................................................15 Subject 03 ........................................................................................................................................15 Scan Session Information ..............................................................................................................15 Scan Series Information.................................................................................................................15 Subject Information ...........................................................................................................................16 Subject 04 ........................................................................................................................................16 Scan Session Information ..............................................................................................................16 Scan Series Information.................................................................................................................16 Subject Information ...........................................................................................................................17 Subject 05 ........................................................................................................................................17 Scan Session Information ..............................................................................................................17 Scan Series Information.................................................................................................................17

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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 Accession #2-2000-11189 Page 6 of 18

Subject Information ...........................................................................................................................18 Subject 06 ........................................................................................................................................18 Scan Session Information ..............................................................................................................18 Scan Series Information.................................................................................................................18

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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 Accession #2-2000-11189 Page 7 of 18

Experiment Information

Abstract The effect of stimulus rate and its interaction with stimulus type on brain activity during reading was investigated using functional Magnetic Resonance Imaging (fMRI). This (i) enabled the segregation of brain regions showing differential responses, (ii) identified the

  • ptimum experimental design parameters for maximising sensitivity, and (iii) allowed us to

evaluate further the sources of discrepancy between PET and fMRI signals. The effect of visual word rate has already been investigated in a previous positron emission tomography (PET)

  • study. However rate effects can be very different in PET and fMRI, as seen in previous studies
  • f auditory word processing. In this work we attempt to replicate rate-sensitive activations
  • bserved with PET using fMRI. Our objective was to characterise the discrepancies in

regionally specific rate-sensitive effects between the two imaging modalities. Subjects were presented with words and pseudowords at varying rates while performing a silent reading

  • task. The analysis specifically identified regions showing (i) an effect of stimulus rate on brain

activity during reading; (ii) modulation of this effect by word type; and (iii) increased activity during reading relative to rest, but no dependence on stimulus rate. The results identified similar effects of rate for words and pseudowords (no interactions between rate and word type reached significance). Irrespective of word type, strong positive linear effects of rate (i.e. activity increasing with rate) were detected in visual areas, right superior temporal gyrus, and bilateral precentral gyrus. These findings replicate the results of the previous PET study, confirming that activation in regions associated with visual processing and response generation increases with the number of stimuli. Likewise, we detected rate independent effects reported in the previous PET study in bilateral anterior middle temporal, inferior frontal and superior parietal regions. These results differentiate the functionally specific responses in rate dependent and rate independent areas. However, for negative effects of rate, fMRI did not replicate the effects seen in PET suggesting some form of hemodynamic "rectification". The discussion focuses on differences between evoked rCBF and BOLD signals. Keywords reading stimulus rate rCBF BOLD signal BOLD refractoriness hemodynamic rectification Number of Subjects 6 Number of Experimental Groups 1

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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 Accession #2-2000-11189 Page 8 of 18

Scanner Information

Manufacturer Siemens Model Magnetom Vision Software Revision Numaaris/3 VB33A Field Strength 2.0 T Gradient Strength Up to 25 mT/m Slew Rate Booster 25mT/m in 300µsec Scanner Protocol Protocol Name EPI Coil Type Head coil Pulse Sequence Type Sinusoidal GE EPI Flip Angle 90 degrees TE 40 ms TR 3150 ms

  • No. of Time Points

360

  • No. of Dummy

Acquisitions 6

  • No. of Slices

35 Slice Thickness 1.8 mm Slice Skip 1.2 mm Sequence Order interleaved Field of View 192 mm Receiver Bandwidth 100 kHz Original Acquisition Matrix 64 x 64 Reconstructed Image Matrix 64 x 64 Full or Partial K full Image Orientation Radiological Ramp Sampling Yes

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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 Accession #2-2000-11189 Page 9 of 18

Experimental Protocols

General Notes

  • All reading tasks involved silent reading
  • Rest task involved fixating a target in the middle of the screen
  • An eye-tracker was used to monitor eye-movements of the subjects while reading to assure

that the subjects were performing the task Rest

  • Fixation cross presented in the middle of the screen
  • Subjects required to fixate cross

Stimuli

  • Word and pseudoword stimuli were composed of 4-6 letters
  • Each functional run contained 105 words and 105 pseudowords
  • Each stimulus was presented for 600 msec in courier lower case
  • Words were matched for frequency, length, and number of syllables between blocks
  • Each word was a regular as possible in terms of grapheme-phoneme conversion
  • Words and pseudowords were matched for bigram frequency between blocks
  • Pseudowords created from Words by changing the onset, the internal consonants or the
  • coda. An example of words and pseudowords is given in the table below:

Word Pseudoword toast noast letter lenner lemon lenos W20

  • Words presented at 20 words per minute
  • Stimulus onset asynchrony of 3000 msec

P20

  • Pseudowords presented at 20 words per minute
  • Stimulus onset asynchrony of 3000 msec

W40

  • Words presented at 40 words per minute
  • Stimulus onset asynchrony of 1500 msec

P40

  • Pseudowords presented at 40 words per minute
  • Stimulus onset asynchrony of 1500 msec

W60

  • Words presented at 60 words per minute
  • Stimulus onset asynchrony of 1000 msec
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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 Accession #2-2000-11189 Page 10 of 18

P60

  • Pseudowords presented at 60 words per minute
  • Stimulus onset asynchrony of 1000 msec

Data Processing

Pre-Processing Steps

  • All data were processed and analyzed with SPM99 (Wellcome Department of Cognitive Neurology,

London, UK. http://www.fil.ion.ucl.ac.uk) running under Matlab 5.3 (Mathworks, Sherborn, MA, USA) All reconstructed data was transformed into pre-processed data with the following steps in SPM99:

  • Using the first volume as a reference, all volumes for a subject were realigned and resliced

using sinc interpolation. Residual motion-related signal changes were adjusted for.

  • A mean image was created using the realigned volumes.
  • The volumes were spatially normalized to a T2* template ( standard SPM99 T2* template

which can found in the distribution at CD: ./templates/EPI.* ).

  • The volumes were then spatially smoothed with an 8mm full width at half maximum

isotropic Gaussian kernel.

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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 Accession #2-2000-11189 Page 11 of 18

Reading Task

Experimental Protocol Reading 1 Reading 2 Reading 3 Reading 4 Reading 5 Reading 6 Condition W20 W20 W20 W20 W20 W20 Start Times (scans) 72.2 144.4 216.6 288.8 48 120.2 192.4 264.6 336.8 24 96.2 168.4 240.6 312.8 60 132.2 204.4 276.6 348.8 12 84.2 156.4 228.6 300.8 36 108.2 180.4 252.6 324.8 Duration 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans Description word reading 20 words/minute word reading 20 words/minute word reading 20 words/minute word reading 20 words/minute word reading 20 words/minute word reading 20 words/minute Condition P20 P20 P20 P20 P20 P20 Start Time (scans) 60 132.2 204.4 276.6 348.8 12 84.2 156.4 228.6 300.8 36 108.2 180.4 252.6 324.8 72.2 144.4 216.6 288.8 48 120.2 192.4 264.6 336.8 24 96.2 168.4 240.6 312.8 Duration 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans Description pseudoword reading 20 words/minute pseudoword reading 20 words/minute pseudoword reading 20 words/minute pseudoword reading 20 words/minute pseudoword reading 20 words/minute pseudoword reading 20 words/minute Condition W40 W40 W40 W40 W40 W40 Start Time (scans) 48 120.2 192.4 264.6 336.8 24 96.2 168.4 240.6 312.8 72.2 144.4 216.6 288.8 12 84.2 156.4 228.6 300.8 36 108.2 180.4 252.6 324.8 60 132.2 204.4 276.6 348.8 Duration 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans Description word reading 40 words/minute word reading 40 words/minute word reading 40 words/minute word reading 40 words/minute word reading 40 words/minute word reading 40 words/minute Condition P40 P40 P40 P40 P40 P40 Start Time (scans) 12 84.2 156.4 228.6 300.8 36 108.2 180.4 252.6 324.8 60 132.2 204.4 276.6 348.8 48 120.2 192.4 264.6 336.8 24 96.2 168.4 240.6 312.8 72.2 144.4 216.6 288.8 Duration 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans Description pseudoword reading 40 words/minute pseudoword reading 40 words/minute pseudoword reading 40 words/minute pseudoword reading 40 words/minute pseudoword reading 40 words/minute pseudoword reading 40 words/minute Condition W60 W60 W60 W60 W60 W60 Start Time (scans) 24 96.2 168.4 240.6 312.8 72.2 144.4 216.6 288.8 48 120.2 192.4 264.6 336.8 36 108.2 180.4 252.6 324.8 60 132.2 204.4 276.6 348.8 12 84.2 156.4 228.6 300.8 Duration 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans Description word reading 60 words/minute word reading 60 words/minute word reading 60 words/minute word reading 60 words/minute word reading 60 words/minute word reading 60 words/minute Condition P60 P60 P60 P60 P60 P60 Start Time (scans) 36 108.2 180.4 252.6 324.8 60 132.2 204.4 276.6 348.8 12 84.2 156.4 228.6 300.8 24 96.2 168.4 240.6 312.8 72.2 144.4 216.6 288.8 48 120.2 192.4 264.6 336.8 Duration 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans 6.6815 scans Description pseudoword reading 60 words/minute pseudoword reading 60 words/minute pseudoword reading 60 words/minute pseudoword reading 60 words/minute pseudoword reading 60 words/minute pseudoword reading 60 words/minute

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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 Accession #2-2000-11189 Page 12 of 18

Condition Rest Rest Rest Rest Rest Rest Start Time (scans) 6.6815 18.6815 30.6815 42.6815 54.6815 66.6815 78.8815 90.8815 102.8815 114.8815 126.8815 138.8815 151.0815 163.0815 175.0815 187.0815 199.0815 211.0815 223.2815 235.2815 247.2815 259.2815 271.2815 283.2815 295.4815 307.4815 319.4815 331.4815 343.4815 355.4815 6.6815 18.6815 30.6815 42.6815 54.6815 66.6815 78.8815 90.8815 102.8815 114.8815 126.8815 138.8815 151.0815 163.0815 175.0815 187.0815 199.0815 211.0815 223.2815 235.2815 247.2815 259.2815 271.2815 283.2815 295.4815 307.4815 319.4815 331.4815 343.4815 355.4815 6.6815 18.6815 30.6815 42.6815 54.6815 66.6815 78.8815 90.8815 102.8815 114.8815 126.8815 138.8815 151.0815 163.0815 175.0815 187.0815 199.0815 211.0815 223.2815 235.2815 247.2815 259.2815 271.2815 283.2815 295.4815 307.4815 319.4815 331.4815 343.4815 355.4815 6.6815 18.6815 30.6815 42.6815 54.6815 66.6815 78.8815 90.8815 102.8815 114.8815 126.8815 138.8815 151.0815 163.0815 175.0815 187.0815 199.0815 211.0815 223.2815 235.2815 247.2815 259.2815 271.2815 283.2815 295.4815 307.4815 319.4815 331.4815 343.4815 355.4815 6.6815 18.6815 30.6815 42.6815 54.6815 66.6815 78.8815 90.8815 102.8815 114.8815 126.8815 138.8815 151.0815 163.0815 175.0815 187.0815 199.0815 211.0815 223.2815 235.2815 247.2815 259.2815 271.2815 283.2815 295.4815 307.4815 319.4815 331.4815 343.4815 355.4815 6.6815 18.6815 30.6815 42.6815 54.6815 66.6815 78.8815 90.8815 102.8815 114.8815 126.8815 138.8815 151.0815 163.0815 175.0815 187.0815 199.0815 211.0815 223.2815 235.2815 247.2815 259.2815 271.2815 283.2815 295.4815 307.4815 319.4815 331.4815 343.4815 355.4815 Duration 5.3185 scans 5.3185 scans 5.3185 scans 5.3185 scans 5.3185 scans 5.3185 scans Description Rest Rest Rest Rest Rest Rest

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SLIDE 14

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 Accession #2-2000-11189 Page 13 of 18

Subject Information

Subject 01 Subject ID 2-2000-11189-01 Experimental Group 1 Sex M Age 19 Handedness Right Handed Native Language English Health Status Good Scan Session Information Scan Date 1/25/2000 Start Time 09:00 End Time 10:00 Number of Series 3 Scan Series Information

Scan Series Scanner Protocol Experimental Protocol Scan Type 1 Localizer Anatomical 2 EPI Reading 1 EPI 3 T1 Anatomical Scan Series Reconstructed 1 2 CD_01: ./exp1-1/2-2000-11189-01/session1/raw/epi.tgz 3 Scan Series Pre-Processed 1 2 CD_01: ./exp1-1/2-2000-11189-01/session1/pre-processed/epi.tgz 3

NOTE:

  • The mean images for the reconstructed EPI series can be found at CD_01: ./exp1-1/2-2000-11189-

01/session1/raw/meanf_0383.*

  • The mean images for the pre-processed EPI series can be found at CD_01: ./exp1-1/2-2000-11189-

01/session1/pre-processed/nmeanf_0383.*

slide-15
SLIDE 15

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 Accession #2-2000-11189 Page 14 of 18

Subject Information

Subject 02 Subject ID 2-2000-11189-02 Experimental Group 1 Sex M Age 20 Handedness Right Handed Native Language English Health Status Good Scan Session Information Scan Date 1/25/2000 Start Time 10:00 End Time 11:00 Number of Series 3 Scan Series Information

Scan Series Scanner Protocol Experimental Protocol Scan Type 1 Localizer Anatomical 2 EPI Reading 2 EPI 3 T1 Anatomical Scan Series Reconstructed 1 2 CD_02: ./exp1-1/2-2000-11189-02/session1/raw/epi.tgz 3 Scan Series Pre-Processed 1 2 CD_02: ./exp1-1/2-2000-11189-02/session1/pre-processed/epi.tgz 3

NOTE:

  • The mean images for the reconstructed EPI series can be found at CD_02: ./exp1-1/2-2000-11189-

02/session1/raw/meanf_0010.*

  • The mean images for the pre-processed EPI series can be found at CD_02: ./exp1-1/2-2000-11189-

02/session1/pre-processed/nmeanf_0010.*

slide-16
SLIDE 16

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 Accession #2-2000-11189 Page 15 of 18

Subject Information

Subject 03 Subject ID 2-2000-11189-03 Experimental Group 1 Sex M Age 28 Handedness Right Handed Native Language English Health Status Good Scan Session Information Scan Date 1/25/2000 Start Time 11:00 End Time 12:00 Number of Series 3 Scan Series Information

Scan Series Scanner Protocol Experimental Protocol Scan Type 1 Localizer Anatomical 2 EPI Reading 3 EPI 3 T1 Anatomical Scan Series Reconstructed 1 2 CD_03: ./exp1-1/2-2000-11189-03/session1/raw/epi.tgz 3 Scan Series Pre-Processed 1 2 CD_03: ./exp1-1/2-2000-11189-03/session1/pre-processed/epi.tgz 3

NOTE:

  • The mean images for the reconstructed EPI series can be found at CD_03: ./exp1-1/2-2000-11189-

03/session1/raw/meanf_0012.*

  • The mean images for the pre-processed EPI series can be found at CD_03: ./exp1-1/2-2000-11189-

03/session1/pre-processed/nmeanf_0012.*

slide-17
SLIDE 17

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 Accession #2-2000-11189 Page 16 of 18

Subject Information

Subject 04 Subject ID 2-2000-11189-04 Experimental Group 1 Sex F Age 29 Handedness Right Handed Native Language English Health Status Good Scan Session Information Scan Date 1/26/2000 Start Time 09:00 End Time 10:00 Number of Series 3 Scan Series Information

Scan Series Scanner Protocol Experimental Protocol Scan Type 1 Localizer Anatomical 2 EPI Reading 4 EPI 3 T1 Anatomical Scan Series Reconstructed 1 2 CD_04: ./exp1-1/2-2000-11189-04/session1/raw/epi.tgz 3 Scan Series Pre-Processed 1 2 CD_04: ./exp1-1/2-2000-11189-04/session1/pre-processed/epi.tgz 3

NOTE:

  • The mean images for the reconstructed EPI series can be found at CD_04: ./exp1-1/2-2000-11189-

04/session1/raw/meanf_0012.*

  • The mean images for the pre-processed EPI series can be found at CD_04: ./exp1-1/2-2000-11189-

04/session1/pre-processed/nmeanf_0012.*

slide-18
SLIDE 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.

fMRIDC Accession #2-2000-11189 Page 17 of 18

Subject Information

Subject 05 Subject ID 2-2000-11189-05 Experimental Group 1 Sex M Age 21 Handedness Right Handed Native Language English Health Status Good Scan Session Information Scan Date 1/26/2000 Start Time 11:00 End Time 12:00 Number of Series 3 Scan Series Information

Scan Series Scanner Protocol Experimental Protocol Scan Type 1 Localizer Anatomical 2 EPI Reading 5 EPI 3 T1 Anatomical Scan Series Reconstructed 1 2 CD_05: ./exp1-1/2-2000-11189-05/session1/raw/epi.tgz 3 Scan Series Pre-Processed 1 2 CD_05: ./exp1-1/2-2000-11189-05/session1/pre-processed/epi.tgz 3

NOTE:

  • The mean images for the reconstructed EPI series can be found at CD_05: ./exp1-1/2-2000-11189-

05/session1/raw/meanf_0012.*

  • The mean images for the pre-processed EPI series can be found at CD_05: ./exp1-1/2-2000-11189-

05/session1/pre-processed/nmeanf_0012.*

slide-19
SLIDE 19

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 Accession #2-2000-11189 Page 18 of 18

Subject Information

Subject 06 Subject ID 2-2000-11189-06 Experimental Group 1 Sex M Age 27 Handedness Right Handed Native Language English Health Status Good Scan Session Information Scan Date 1/25/2000 Start Time 10:00 End Time 11:00 Number of Series 3 Scan Series Information

Scan Series Scanner Protocol Experimental Protocol Scan Type 1 Localizer Anatomical 2 EPI Reading 6 EPI 3 T1 Anatomical Scan Series Reconstructed 1 2 CD_06: ./exp1-1/2-2000-11189-06/session1/raw/epi.tgz 3 Scan Series Pre-Processed 1 2 CD_06: ./exp1-1/2-2000-11189-06/session1/pre-processed/epi.tgz 3

NOTE:

  • The mean images for the reconstructed EPI series can be found at CD_06: ./exp1-1/2-2000-11189-

06/session1/raw/meanf_0010.*

  • The mean images for the pre-processed EPI series can be found at CD_06: ./exp1-1/2-2000-11189-

06/session1/pre-processed/nmeanf_0010.*

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