Memory Lateralization with 2 Functional MR Imaging Tasks in Patients with Lesions in the Temporal Lobe
C. Ávilaa,
A. Barrós-Loscertalesa,
C. Forna,
R. Malloa,
M.-A. Parceta,
V. Bellochb,
S. Camposb,
R. Feliu-Tatayc and
J.M. González-Darderc
a Department of Basic & Clinical Psychology and Psychobiology, Universitat Jaume I, Castelló de la Plana, Spain
b Department of Radiology, Exploraciones Radiológicas Especiales SA, Valencia, Spain
c Neurosurgery Service, Castellón General Hospital, Castellón, Spain
View larger version (56K):
[in a new window]
|
Fig 1. Functional activation results for the picture-encoding task (left) and the hometown-walking task (right). All images are in radiologic orientation. Activation thresholds were at 0.00001 for groups and 0.001 for individual patients.
A, Results for the control group.
B, Results for patient 2 showing symmetric bilateral activation of the temporal lobe for both tasks.
C, Results for patient 6 showing asymmetric activation of the temporal lobe for both tasks.
D, Results for patient 19 showing a clear discordance between the results of both tasks, where the picture-encoding tasks showed a contralesional representation of memory, the hometown-walking task showed an ipsilesional representation of memory.
| |
View larger version (15K):
[in a new window]
|
Fig 2. Mean number of voxels activated for both tasks in each group.
| |
