Cerebral processes related to visuomotor imagery and generation of simple finger movements studied with positron emission tomography

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Paper (help)
Cerebral processes related to visuomotor imagery and generation of simple finger movements studied with positron emission tomography
Authors: Marie-Pierre Deiber, Vicente Ibañez, Manabu Honda, Noribiro Sadato, Ramesh Raman, Mark Hallett
Citation: NeuroImage 7 (2): 73-85. 1998 February
Database(s): PubMed (PMID/9571132)
DOI: 10.1006/nimg.1997.0314.
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Extract:

Cerebral processes related to visuomotor imagery and generation of simple finger movements studied with positron emission tomography reports a positron emission tomography where subjects visually imagined finger movements or visually imagined and executed a movement with the right hand.

Instructions about movement was provided by a light-emitted diode (page 74).

The paradigm was based on a previous study by the authors from 1996: Cerebral structures participating in motor preparation in humans: a positron emission tompography study.

Contents

[edit] Subjects

Subject group (help)
Normal volunteers
Subjects/♂/♀: 10 / 6 / 4
Age: 35.1 (21–53)
Handedness: Right
Nationality: define nationality
Approval: Institutional Review Board
Databases:

A group of 10 right-handed normal volunteers with 6 males and 4 females were included in the study. The group had a mean age of 35.1 with a range from 21 to 53. The study on the human subjects was approved by the Institutional Review Board.

[edit] Experiment

There were five conditions

  1. "Full" selection, imaging only where the imaging movement was instructed by a stimulus
  2. "Full" selection, imaging and movement where the subjects first should imaging the movement specified by the stimulus and then move. (The text writes "at the PS [preparatory stimulus], the subjects had to execute the movement". This is not in accordance with Figure 1 where the subjects move at the "RS" (response stimulus). It is probably a typo in the text.
  3. "Free" selection, imaging only where the imaging movement was instructed by a stimulus. The movement was selected by the subject.
  4. "Free" selection, Imaging and move. Subject-selected movement
  5. Rest. Stimulus but no imagining or movement

The movement was either finger abduction or finger elevation and performed with either the index finger or the little finger, thus four different movements were possible.

[edit] Results

Results are reported with respect to the 1988 Talairach atlas with volumes spatial normalized with SPM (classic?) (probably).

[edit] Full selection, imaging movement versus rest

Table 2, first part with 3 coordinates.

Anatomy
BA
x
y
z
No. vox
t
z
Coordinate search
Plot
1 Left inferioparietal 39/40 -38 -62 36 6.04 Brede Database Brede Wiki NeuroSynth SumsDB Not available
2 (Cingulate) Pre-supplementary motor area 6 (32) -10 -12 44 4.60 Brede Database Brede Wiki NeuroSynth SumsDB Not available
3 Left dorsolateral prefrontal cortex (left inferior frontal) 6/46 (44/45) -40 20 32 4.37 Brede Database Brede Wiki NeuroSynth SumsDB Not available

[edit] Full selection, Imaging and movement versus rest

Table 2, part 2 with 4 coordinates.

Anatomy
BA
x
y
z
No. vox
t
z
Coordinate search
Plot
1 Left inferioparietal 39/40 -40 -66 36 4.75 Brede Database Brede Wiki NeuroSynth SumsDB Not available
2 (Cingulate) Pre-supplementary motor area (premotor) 6 (6 and 32) -8 6 48 4.42 Brede Database Brede Wiki NeuroSynth SumsDB Not available
3 Right cerebellum 6 -54 -12 4.97 Brede Database Brede Wiki NeuroSynth SumsDB Not available
4 Right thalamus 14 -14 16 4.70 Brede Database Brede Wiki NeuroSynth SumsDB Not available

[edit] Full selection, Imaging and movement versus imaging only

Table 2, part 3 with 1 coordinate. Reverse contrast of the one below.

Anatomy
BA
x
y
z
No. vox
t
z
Coordinate search
Plot
1 Right cerebellum 6 -54 -12 4.50 Brede Database Brede Wiki NeuroSynth SumsDB Not available

[edit] Full selection, Imaging only versus imaging and movement

Table 2, part 4 with 1 coordinate. Reverse contrast of above.

Anatomy
BA
x
y
z
No. vox
t
z
Coordinate search
Plot
1 Left inferior frontal 44/45 -40 22 16 4.28 Brede Database Brede Wiki NeuroSynth SumsDB Not available


[edit] Free selection, Imaging only versus rest

Table 3, part 1 with 5 coordinates.

Anatomy
BA
x
y
z
No. vox
t
z
Coordinate search
Plot
1 Left parietooccipital 39/40, 19 -42 -64 36 4.58 Brede Database Brede Wiki NeuroSynth SumsDB Not available
2 Right parietooccipital 39/40, 19 36 -68 40 4.99 Brede Database Brede Wiki NeuroSynth SumsDB Not available
3 (Cingulate) Left pre-supplementary motor area (premotor) 6 (6, 32) -16 6 52 4.98 Brede Database Brede Wiki NeuroSynth SumsDB Not available
4 Right premotor 6/8 34 8 48 4.42 Brede Database Brede Wiki NeuroSynth SumsDB Not available
5 Left frontal 9 -42 30 32 3.97 Brede Database Brede Wiki NeuroSynth SumsDB Not available

[edit] Free selection, Imaging and movement versus rest

Table 3, part 2 with 3 coordinates.

Anatomy
BA
x
y
z
No. vox
t
z
Coordinate search
Plot
1 Left inferoparietal 39/40 -38 -38 36 6.06 Brede Database Brede Wiki NeuroSynth SumsDB Not available
2 (Cingulate) Left premotor (pre-supplementary motor, motor) 6 (6, 32) -22 0 52 4.89 Brede Database Brede Wiki NeuroSynth SumsDB Not available
3 Right cerebellum 10 -54 -20 4.77 Brede Database Brede Wiki NeuroSynth SumsDB Not available

[edit] Free selection, Imaging and movement only versus imaging

Table 3, part 3 with 2 coordinates.

Anatomy
BA
x
y
z
No. vox
t
z
Coordinate search
Plot
1 Left anterioparietal (Motor) 40 (4) -38 -38 40 4.40 Brede Database Brede Wiki NeuroSynth SumsDB Not available
2 Right cerebellum 12 -52 -20 4.04 Brede Database Brede Wiki NeuroSynth SumsDB Not available
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