MRI acquisitions#

This section contains details about the overall organization of the MRI sessions across participants. It provides details about session IDs for every participant, the MRI sequences employed in every session and their imaging parameters. A description about data anomalies is also provided per participant for every session.

For more information about the technical specifications of the MRI equipment used, please consult Section “MRI Equipment” of Pinho et al. 2018 or Pinho et al. 2020.

Organization of the MRI sessions#

The figure below depicts the temporal organization of runs in terms of MRI sequences within sessions:

**Structure of the IBC-MRI sessions in terms of number, type and duration of the runs performed.** Each rectangle represents one run; its width visually quantifies the duration of that run and the color indicates the type of sequence employed. Rows of rectangles depict the chronological organization of every session. Labels on the left side identify the session represented by each row. For every session, the tasks employed during the EPI sequences are specified on the right side of the corresponding row.#

Besides, a plan of the MRI sessions undertaken per participant can be found in Table [table:acqplan_appendix]. and a summary of the fMRI-data anomalies over sessions and participants can be found in Table [table:dataanomalies_appendix].

Parameters of the MRI sequences#

Details of the parameters used for all the MRI sequences employed are provided over the following subsections. The bulk of the data is collected using a SIEMENS MAGNETOM Prisma-fit 3T scanner.

2D Spin-Echo#

The 2D Spin-Echo maps are used to obtain a model of distortions for EPI images: 2 pairs of AP/PA images are acquired along with each EPI (BOLD or diffusion-weighted) acquisition one at the start and one at the end of each scanner session.

Acquisition parameters for Spin-Echo#
Parameter	Value
Sequence	Spin Echo EPI
TR	7680 ms
TE	46 ms
FOV	192 mm
Matrix	128 x 128
Slice thickness	1.50 mm
Number of slices	93
GRAPPA iPAT	2
Ref. lines PE	62
Echo spacing	0.65 ms
BW	1776 Hz/Px
Fat suppr.	Fat sat.
Phase partial Fourier	None
Multi-slice mode	Interleaved
Series	Interleaved

EPI T2* with BOLD contrast for task scans#

The same acquisition parameters were used in all task-fMRI runs, only the number of repetitions (TRs) changed as each run had a different duration, This table contains the number of TRs for every task.

Acquisition parameters for task-based BOLD-contrast images#
Parameter	Value
Sequence	Gradient Echo EPI
TR	2000 ms
TE	26.8 ms
Flip angle	74 deg
Fat suppr.	Fat sat.
FOV	192 mm
Matrix	128 x 128
Slice thickness	1.50 mm
Number of slices	93 slices
GRAPPA iPAT	2
Multiband accel. factor	3
Echo spacing	0.65 ms
BW	1776 Hz/Px
Phase partial Fourier	None
Multi-slice mode	Interleaved
Series	Interleaved

The only exception to these parameters specifications was the MultiModal task, this table contains the details of the parameters that were changed.

Acquisition parameters for MultiModal tasks’ BOLD-contrast images#
Parameter	Value
Sequence	Gradient Echo EPI
TR	2600 ms
TE	26.8 ms
Flip angle	78 deg
Fat suppr.	Fat sat.
FOV	192 mm
Matrix	128 x 128
Slice thickness	2 mm
Number of slices	75 slices
GRAPPA iPAT	2
Multiband accel. factor	3
Echo spacing	0.65 ms
BW	1776 Hz/Px
Phase partial Fourier	None
Multi-slice mode	Interleaved
Series	Interleaved

EPI T2* with BOLD contrast for resting state scans#

Acquisition parameters for resting-state BOLD-contrast images#
Parameter	Value
Sequence	Gradient Echo EPI
TR	760 ms
TE	29 ms
Number of TRs	1120
Flip angle	53 deg
Fat suppr.	Fat sat.
FOV	194 mm
Matrix	88 x 88
Slice thickness	2.20 mm
Number of slices	66 slices
Multiband accel. factor	6
Echo spacing	0.55 ms
BW	2470 Hz/Px
Phase partial Fourier	None
Multi-slice mode	Interleaved
Series	Interleaved

T1#

A few types of T1 images were acquired:

High-resolution T1 MPRAGE anatomical scan acquired during screening

Acquisition parameters for high-resolution T1 MPRAGE scan.#
Parameter	Value
Sequence	T1 MPRAGE
Orientation	Sagittal
TA	7:46
TR	2300 ms
TE	2.98 ms
TI	900 ms
Flip angle	9 deg
FOV	256 mm
Matrix	256 x 256
Slice thickness	1 mm
Number of slices	160
Multiband accel. factor	1
Echo spacing	7.1 ms
BW	240 Hz/Px
Fat suppr.	None
Phase partial Fourier	7/8
Turbo factor	176
Series	Interleaved

Yearly maintenance T1 MPRAGE anatomical scan

Acquisition parameters for yearly maintenance T1 MPRAGE scan.#
Parameter	Value
Sequence	T1 MPRAGE
Orientation	Sagittal
TA	4:44
TR	2300 ms
TE	3.05 ms
TI	900 ms
Flip angle	9 deg
FOV	230 mm
Matrix	256 x 256
Slice thickness	0.9 mm
Number of slices	176
Multiband accel. factor	2
Echo spacing	7.4 ms
BW	240 Hz/Px
Fat suppr.	None
Phase partial Fourier	7/8
Turbo factor	176
Series	Interleaved

High-resolution T1 MPRAGE anatomical scan acquired with diffusion tractography

Acquisition parameters for high-resolution T1 MPRAGE scan.#
Parameter	Value
Sequence	T1 MPRAGE
Orientation	Sagittal
TA	18:26
TR	2300 ms
TE	4.93 ms
TI	900 ms
Flip angle	9 deg
FOV	248 mm
Matrix	352 x 352
Slice thickness	0.7 mm
Number of slices	160
GRAPPA accel. factor	3
Ref. lines PE	61
Echo spacing	11.5 ms
BW	130 Hz/Px
Fat suppr.	None
Phase partial Fourier	Deactivated
Turbo factor	339
Series	Interleaved

T2#

Several types of images were acquired under this category:

High-resolution T2 turbo SE sequence (Siemens SPACE)

Acquisition parameters for high-resolution T2 sagittal images.#
Parameter	Value
Sequence	T2 turbo SE
Orientation	Sagittal
TA	15:30
TR	3200 ms
TE	420 ms
Flip angle mode	T2 var
Turbo factor	284
FOV	270 mm
Matrix	384 x 384
Slice thickness	0.70 mm
Number of slices	240 slices
Multiband accel. factor	1
Echo spacing	3.68 ms
BW	723 Hz/Px
Fat suppr.	None
Phase partial Fourier	None
Series	Interleaved

T2 FLAIR sagittal.

Acquisition parameters for T2 FLAIR sagittal images.#
Parameter	Value
Sequence	T2_FLAIR_SAG_FOV230
TR	5000 ms
TE	396 ms
Flip angle mode	T2 var
FOV	230 x 230 mm
Matrix	256 x 256
Slice thickness	0.81 mm, 192 slices, 0.81 mm isotropic
Multiband accel. factor	1
Echo spacing	3,36 ms
BW	781 Hz/Px
Phase partial Fourier	0
b-values	0 s/mm²

T2 sagittal with fat saturation.

Acquisition parameters for T2 images with Fat-Sat.#
Parameter	Value
Sequence	T2_SPC_SAG_fatsat
TR	3200 ms
TE	420 ms
Flip angle mode	T2 var
FOV	270 x 270 mm
Matrix	384 x 384
Slice thickness	0.70 mm, 240 slices, 0.70 mm isotropic
Echo spacing	3.68 ms
BW	723 Hz/Px
Phase partial Fourier	None
b-values	0 s/mm²

T2 sagittal (0.7mm).

Acquisition parameters for high-resolution sagittal T2 images.#
Parameter	Value
Sequence	T2_SPC_SAG_0.7mm
TR	3200 ms
TE	420 ms
Flip angle mode	T2 var
FOV	270 x 270 mm
Matrix	384 x 384
Slice thickness	0.70 mm, 240 slices, 0.70 mm isotropic
Multiband accel. factor	1
Echo spacing	3.68 ms
BW	723 Hz/Px
Phase partial Fourier	None
b-values	0 s/mm²

T1 relaxometry#

Three different runs were performed:

A B1 map for T1 mapping.

Acquisition parameters for B1 maps.#
Parameter	Value
Sequence	B1Map_for_T1_map
TR	20000 ms
TE	2.59 ms
Flip angle	8 deg
FOV	256 x 256 mm
Matrix	128 x 128
Slice thickness	2 mm, 44 slices, 2 mm isotropic
Multiband accel. factor	1
Echo spacing	4.5 ms
BW	800 Hz/Px
Phase partial Fourier	None
b-values	0 s/mm²

T1 maps with FA from 3 to 19 in steps of two.

Acquisition parameters for T1 maps.#
Parameter	Value
Sequence	T1Map_1mm
TR	10 ms
TE	3 ms
Flip angle	3 deg
FOV	256 x 256 mm
Matrix	128 x 128
Slice thickness	1 mm, 176 slices, 1 mm isotropic
Multiband accel. factor	1
BW	240 Hz/Px
Phase partial Fourier	7/8
b-values	0 s/mm²

T2 relaxometry#

Two types of relaxometry images were acquired:

T2* sagittal (relaxometry).

Acquisition parameters for T2 relaxometry images.#
Parameter	Value
Sequence	relaxometry_T2star_sag
TR	50 ms
TE1	1.77 ms
TE2	5.06 ms
TE3	8.35 ms
TE4	11.64 ms
TE5	14.93 ms
TE6	18.22 ms
TE7	21.51 ms
TE8	24.80 ms
TE9	28.09 ms
TE10	32.50 ms
TE11	38.90 ms
TE12	47.00 ms
Flip angle	20 deg
FOV	288 x 288 mm
Matrix	196 x 196
Slice thickness	1.50 mm, 120 slices, 1.50 mm isotropic
Multiband accel. factor	1
BW	420 Hz/Px
Phase partial Fourier	7/8
b-values	0 s/mm²

T2 relaxometry with 12 contrasts.

Acquisition parameters for 12-contrast T2 images.#
Parameter	Value
Sequence	relaxometry_T2_tra_12contrastes
TR	7600 ms
TE1	14 ms
Flip angle	180 deg
FOV	256 x 256 mm
Matrix	256 x 256
Slice thickness	1,1 mm, 128 slices, 1,1 mm isotropic
GRAPPA accel. factor	3
Echo spacing	14 ms
BW	215 Hz/Px
Phase partial Fourier	None
b-values	0 s/mm²

Number of TRs for each task#

Number of repetitions for each task; TR = 2s.#
Task	Runs	Number of TRs
ARCHI Standard	all runs	156
ARCHI Spatial	all runs	252
ARCHI Social	all runs	262
ARCHI Emotional	all runs	220
HCP Language	all runs	229
HCP Emotion	all runs	139
HCP Gambling	all runs	188
HCP Motor	all runs	185
HCP Social	all runs	196
HCP Relational	all runs	311
HCP WM	all runs	303
RSVP Language	all runs	310
Mental Time Travel	all runs	394
Preference	all runs	248
Theory-of-Mind localizer	all runs	186
Theory-of-Mind and
Pain-Matrix Narrative localizer
Theory-of-Mind and
Pain-Matrix Movie localizer
Visual Short-Term Memory	all runs	260
Enumeration	all runs	490
Self	runs 1-3	359
Self	run 4	480
Bang	only one run	243
Clips	all runs	325
Retinotopy	all “wedge” and “ring” runs	165
Raiders	runs 1 and 11	374
Raiders	runs 2 and 12	297
Raiders	runs 3 and 13	314
Raiders	run 4	379
Raiders	run 5	347
Raiders	run 6	346
Raiders	run 7	350
Raiders	run 8	353
Raiders	run 9	281
Raiders	run 10	211
Lyon MOTO	all runs	359
Lyon MCSE	all runs	177
Lyon MVEB	all runs	203
Lyon MVIS	all runs	178
Lyon LEC1	all runs	190
Lyon LEC2	all runs	143
Lyon AUDI	all runs	347
Lyon VISU	all runs	173
Real-Life Sounds	all runs	277
Stanford Stop Signal	all runs	165
Stanford Attention	all runs	175
Stanford Two-by-Two	all runs	340
Stanford Selective Stop Signal	all runs	329
Stanford Stroop	all runs	107
Stanford Delay Discounting	all runs	309
Stanford Columbia Cards	all runs	240
Stanford Dot Patterns	all runs	369
Stanford Ward and Allport	all runs	240
Le Petit Prince	run 1	313
Le Petit Prince	run 2	330
Le Petit Prince	run 3	358
Le Petit Prince	run 4	319
Le Petit Prince	run 5	297
Le Petit Prince	run 6	382
Le Petit Prince	run 7	336
Le Petit Prince	run 8	298
Le Petit Prince	run 9	340
Le Petit Prince	localizer	175
Biological Motion	all runs	204
Math-Language	run 1 type “a”	281
Math-Language	run 2 type “a” and run 3 type “b”	280
Math-Language	run 3 type “a”	286
Math-Language	run 4 type “a”	288
Math-Language	runs 1 and 2 type “b”	283
Spatial Navigation	run 1	151
Spatial Navigation	runs 2-8	241
The Good, the Bad and the Ugly	runs 1 and 19	265
The Good, the Bad and the Ugly	runs 2 and 20	244
The Good, the Bad and the Ugly	runs 3-18 and 21	304
CamCAN Emotional Memory	all runs	306
CamCAN Emotion Recognition	all runs	195
CamCAN Stop/No-Go	all runs	304
CamCAN Oddball	all runs	135
CamCAN VSTM	all runs	254
CamCAN Finger Tapping	all runs	163
FBIRN Breath Holding	all runs	182
FBIRN Checkerboard	all runs	190
FBIRN Finger Tapping	all runs	236
FBIRN Item Recognition	all runs	222
Visual Search and Working Memory	run1	355
Visual Search and Working Memory	run2	354
Visual Search and Working Memory	run3	345
Visual Search and Working Memory	run4	356
Reward Processing	all runs	362
NARPS	all runs	222
Scene perception	all runs	284
Face-body	all runs	229
Monkey Kingdom	runs 1 and 2	465
Monkey Kingdom	runs 3 to 5	466
Color	all runs	221
Motion	all runs	198
Optimism Bias	all runs	302
AOMIC	Movie 1 run	331
AOMIC	Face perception 2 runs	188
AOMIC	Gender stroop 2 runs	246
AOMIC	Emotion matching 2 runs	121
AOMIC	Working memory run 1	162
AOMIC	Working memory run 2	181