fMRI Investigation of Cortical and Subcortical Networks in the Learning of Abstract and Effector-Specific Representations of Motor Sequences



L

8

-36

-78

32

4.5*

0

----

Middle Occipital Gyrus (BA 18/19)

R

3

----

10

28

-79

9

3.67

L

17

-30

-79

19

4.09

14

-38

-72

7

3.45

Superior Parietal Cortex (BA 7)

R

102

32

-66

47

6.37

61

28

-46

58

6.05

L

172

-24

-51

58

6.72

117

-24

-50

56

7.46

Inferior Parietal Lobule (BA 40)

R

97

42

-31

40

3.98

95

44

-33

48

5.93

L

357

-40

-44

54

6.81

242

-36

-40

55

9.8

Precuneus (BA 7)

R

104

12

-55

58

4.73

69

10

-56

47

3.98

L

108

-20

-56

53

8.77*

131

-12

-57

54

4.21*

Primary Motor Cortex (BA 4)

L

15

-40

-19

38

4.69*

22

-30

-27

46

4.98

Sensory (BA 2/3)

L

146

-55

-27

44

5.63

166

-55

-25

44

6.96

Premotor (dorsal) (BA 6)

R

0

----

7

-40

0

39

10.3

L

40

-32

-6

41

4.68

46

32

6

42

6.41

Premotor (ventral) (BA 6)

R

0

----

0

----

L

9

-36

0

35

5.59*

37

-48

-3

26

4.58

Pre-SMA (BA 6)

0

----

13

-2

14

45

3.8

Stereotaxic Talairach coordinates of peak activation obtained with p < .005 (uncorrected). Coordinates of peak activation
are reported for regions having atleast 5 significant voxels. * indicates that the peak was identified using a ROI mask as
clusters of activations spanned across several brain regions.

Table 1b. Locations of significant BOLD signal in the early and late stages of visual > normal contrast

EARLY

Cluster

LATE

Cluster

T value

Brain area

size

Coordinates (mm)

size

Coordinates (mm)   T value

(voxels)

(voxels)

xy  z

x  yz

Anterior Putamen(d)              L

----

21

-26      2      7    4.57

Superior Occipital Gyrus (BA 19) R

21

34      -76       28      3.49

----

Superior Parietal Cortex (BA 7)     R

43

34      -58       51      3.23

----

L

121

-16      -57       58      4.74

----

Inferior Parietal Cortex (BA 40) L

----

6

-44      -37     31    3.28

Medial Frontal Gyrus (BA 9)

---

9

18      40     15   3.34

Stereotaxic Talairach coordinates of peak activation obtained with p < .005 (uncorrected).

11



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