Puce et al., 19912727 Puce A, Andrewes DG, Berkovic SF, Bladin PF. Visual recognition memory. Neurophysiological evidence for the role of temporal white matter in man. Brain 1991;114(Pt 4):1647-1666. Doi: 10.1093/brain/114.4.1647
https://doi.org/10.1093/brain/114.4.1647...
|
N400 amplitude for each stimulus type indicated N400 amplitude was larger in response to novel stimuli and smaller in response to repeated stimuli.
N400/P600S were either present bilaterally or absent bilaterally, and thus were not of value in localizing the epileptogenic focus.
|
P600 amplitude data indicated that repeated stimuli elicited larger P600s.
N400/P600S were either present bilaterally or absent bilaterally, and thus were not of value in localizing the epileptogenic focus.
|
No |
NA |
Guillem et al., 19982222 Guillem F, N’Kaoua B, Rougier A, Claverie B. Location of the epileptic zone and its physiopathological effects on memory-related activity of the temporal lobe structures: a study with intracranial event-related potentials. Epilepsia 1998;39(09): 928-941. Doi: 10.1111/j.l528-1157.1998.tb01442.x
https://doi.org/10.1111/j.l528-1157.1998...
|
The AMTL- N400 is usually less negative when evoked by “old” rather than by “new” words in the oddball tasks. The AMTL-N400 amplitude is altered by the presence of the epileptic zone. |
The modulation of the P600 component seems to be less reliably observed, at least in the iEEG |
Yes |
NA |
Grunwald et al., 1998a99 Grunwald T, Lehnertz K, Heinze HJ, Helmstaedter C, Elger CE. Verbal novelty detection within the human hippocampus proper. Proc Natl Acad Sci U S A 1998;95(06):3193-3197. Doi: 10.1073/pnas.95.6.3193
https://doi.org/10.1073/pnas.95.6.3193...
|
In patients with HS, AMTL-N400 to first presentation of new words were reduced on the side of epileptogenic focus and no repetition effects were found.
In patients without HS AMTL-N400 amplitudes to new and old items were smaller in the epileptic temporal lobe, and repetition effects were found.
|
NA |
Yes |
The number of correctly identified first representations and repetition was correlated only with left AMTL-N400 amplitude to first presentation (new), in preoperative patients. |
Grunwald et al., 1998b2525 Grunwald T, Lehnertz K, Helmstaedter C, et al. Limbic ERPs predict verbal memory after left-sided hippocampectomy. Neuroreport 1998;9(15):3375-3378. Doi: 10.1097/00001756-199810260-00007
https://doi.org/10.1097/00001756-1998102...
|
Upon repetition, AMTL-N400 was reduced in amplitude only on the non-epileptogenic side (p < 0.0005).
On the epileptogenic side repetition effects (new-minus-old) were reduced.
|
NA |
Yes |
The amplitudes of the right AMTL-N400 to new words correlated with the number of words recalled after a 30-minute delay.
The amplitudes of the right AMTL-N400 to new words correlated with the percentage of postoperative change, relative to the preoperative performance.
|
Grunwald et al., 19991010 Grunwald T, Lehnertz K, Pezer N, et al. Prediction of postoperative seizure control by hippocampal event-related potentials. Epilepsia 1999;40(03):303-306. Doi: 10.1111/j.1528-1157.1999.tb00708.x
https://doi.org/10.1111/j.1528-1157.1999...
|
Seizure freedom was associated with significantly higher values for new-minus-old amplitude differences on the non-lesioned side. The repetition effect permitted correct prediction of postoperative seizure control in 94% of all patients.
AMTL-N400 to new words and repetition effects were diminished on the side of HS. In patients without HS, AMTL-N400 amplitude to new and old words were smaller in the epileptic lobe, and the repetition effect is present.
|
NA |
Yes |
NA |
Mormann et al., 20072626 Mormann F, Fernández G, Klaver P, Weber B, Elger CE, Fell J. Declarative memory formation in hippocampal sclerosis: an intracranial event-related potentials study. Neuroreport 2007; 18(04):317-321. Doi: 10.1097/WNR.0b013e3280287ae9
https://doi.org/10.1097/WNR.0b013e328028...
|
Decreased ERP (AMTL-N400) amplitudes on the ipsilateral side, with hippocampal sclerosis, and a significant decrease of stimulus-induced power in the delta and theta range on the side of hippocampal sclerosis. |
To a lesser extent for the hippocampal P600 on the ipsilateral side, with hippocampal sclerosis, in comparison with the contralateral side. |
Yes |
Increased amplitudes for subsequently remembered versus forgotten words showed a significant decrease in delta and theta range power on the hippocampus and the rhinal cortex on the ipsilateral side. |
Dietl et al., 20082424 Dietl T, Kurthen M, Kirch D, et al. Limbic event-related potentials to words and pictures in the presurgical evaluation of temporal lobe epilepsy. Epilepsy Res 2008;78(2-3):207-215. Doi: 10.1016/j.eplepsyres.2007.12.002
https://doi.org/10.1016/j.eplepsyres.200...
|
AMTL-N400S to new word and not to pictures were reduced in amplitude near the epileptogenic focus, both in right and in left TLE. Limbic ERPs to words are more sensitive to the epileptogenic process than those to pictures. |
LNCs to old word and pictures were smaller in sclerotic than in non-sclerotic hippocampi. |
Yes |
NA |
Thumbnail
