The Cognitive Neuroscience of Music

Figure 16.2

MRI scan of a patient with a surgical excision in the right HG; illustrated are planes of section oriented horizontally (

A), sagittally (

B), and coronally

(C

). The left side of panels

A

,B

, and

C

show the patient’s scan alone, with an

arrow

indicating the region of excision/undercutting. The images on the

right side

of

panels

A,

B, and

C

show the patient’s scan coregistered with an anatomical probabilistic map of

HG derived from normal individuals (Ref. 44). The

crosshairs

indi-

cate the same position in the standardized space as the

arrow

. Note the correspondence between the position of HG as determined from the map and the patient’s

partially excised HG region. The

yellow box

in panel

C

indicates the region of the removal pictured in close-up in panel

D

, which illustrates the transition from intact,

to undercut, to fully excised tissue (coronal sections taken at 3-mm int

ervals, posterior to anterior).

Arrows

again correspond to the

crosshairs

in the other panels and

indicate the location of the HG region. (See Plate 4A–D in colour section.)

D