Looking into Task-Specific Activation Using a Prosthesis Substituting Vision with Audition
Table 3
Brain activation during the visual conditions.
Brain area
Cluster size
score
mm}
Control > rest
Left precuneus/superior parietal lobule (BA 7)
443
5.98
−14; −74; 54
Left precuneus/superior parietal lobule (BA 7)
()
4.74
−22; −60; 48
Right middle frontal gyrus (BA 6–8)
105
5.85
52; 8; 48
Right superior frontal gyrus (BA 6)
103
5.66
2; 24; 58
Right cuneus (BA 17-18)
346
5.47
20; −90; 6
Right middle frontal gyrus (BA 9)
116
5.42
50; 28; 32
Left inferior occipital gyrus (BA 18)
108
5.32
−28; −94; −4
Right precuneus/superior parietal lobule (BA 7)
126
4.88
18; −68; 54
Left superior frontal gyrus (BA 8)
106
4.29
−4; 22; 48
Left middle frontal gyrus (BA 9)
40
3.78
−16; 44; 34
Localization > control
Right superior parietal lobule (BA 7)
352
5.22
20; −66; 56
Left superior parietal lobule (BA 7)
206
4.79
−28; −60; 52
Left precuneus/superior parietal lobule (BA 7)
()
4.62
−18; −62; 52
Left superior parietal lobule (BA 7)
()
4.24
−30; −68; 52
Left cuneus (BA 17-18)
69
4.76
−6; −96; 8
Right cuneus (BA 17)
30
3.99
10; −90; 4
Orientation > control
Localization > orientation
Right superior parietal lobule (BA 7)
86
4.12
26; −66; 66
Right superior parietal lobule (BA 7)
()
3.87
28; −56; 60
Left superior occipital gyrus/precuneus (BA 19–7)
41
4.06
−36; −78; 42
Right superior occipital gyrus/precuneus (BA 19–7)
10
3.77
38; −68; 44
Overview of brain activation peaks during the additional visual control experiment. When experimental conditions were compared to control condition, only the contrast {visual localization minus visual control, masked (inclusive) with visual localization minus rest} provided results at , FDR corrected (fixed-effect analysis). Results from the differential contrast between experimental conditions, that is, {visual localization minus visual orientation masked (inclusive) by visual localization minus rest} are also reported (from a fixed-effect analysis at , uncorrected) for reference. Coordinates are reported in MNI space, as given by SPM2, and correspond only approximately to Talairach and Tournoux space [21]. BA: Brodmann area. () belonging to the same voxels cluster.
