Abstract
We have recorded electrocorticographic activities (ECoG) from subdural electrodes on the human medial temporal lobe (MTL) and basal temporal lobe (BTL) in epileptic patients during cognitive visual tasks designed to evoke the P300 event related potential (ERP). From those recordings we examined the event related gamma band oscillation (ERGBO) and P300 ERP. While P300 was predominantly observed in the MTL, ERGBO was observed in both MTL and BTL. Resembling to P300, ERGBO responses were more often observed following rare stimuli than frequent stimuli. In average responses the ERGBO to rare stimuli followed P300, beginning at 440.5 ms and continuing for about 100 ms. Past studies suggest P300 ERP component reflects a role in cognitive function. Since ERGBO in the present study appeared in different regions and at a different latency from P300, ERGBO may reflect a different physiological role in the cognitive process.
| Original language | English |
|---|---|
| Pages (from-to) | 421-427 |
| Number of pages | 7 |
| Journal | Neuroscience Research |
| Volume | 44 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2002 Dec 1 |
| Externally published | Yes |
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Keywords
- Basal temporal lobe
- Electrocorticogram
- Induced gamma oscillations
- Medial temporal lobe
- P300
ASJC Scopus subject areas
- Neuroscience(all)
Cite this
The relationship between the visually evoked P300 event-related potential and gamma band oscillation in the human medial and basal temporal lobes : An electrocorticographic study. / Watanabe, N.; Hirai, N.; Maehara, T.; Kawai, K.; Shimizu, H.; Miwakeichi, F.; Uchida, S.
In: Neuroscience Research, Vol. 44, No. 4, 01.12.2002, p. 421-427.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The relationship between the visually evoked P300 event-related potential and gamma band oscillation in the human medial and basal temporal lobes
T2 - An electrocorticographic study
AU - Watanabe, N.
AU - Hirai, N.
AU - Maehara, T.
AU - Kawai, K.
AU - Shimizu, H.
AU - Miwakeichi, F.
AU - Uchida, S.
PY - 2002/12/1
Y1 - 2002/12/1
N2 - We have recorded electrocorticographic activities (ECoG) from subdural electrodes on the human medial temporal lobe (MTL) and basal temporal lobe (BTL) in epileptic patients during cognitive visual tasks designed to evoke the P300 event related potential (ERP). From those recordings we examined the event related gamma band oscillation (ERGBO) and P300 ERP. While P300 was predominantly observed in the MTL, ERGBO was observed in both MTL and BTL. Resembling to P300, ERGBO responses were more often observed following rare stimuli than frequent stimuli. In average responses the ERGBO to rare stimuli followed P300, beginning at 440.5 ms and continuing for about 100 ms. Past studies suggest P300 ERP component reflects a role in cognitive function. Since ERGBO in the present study appeared in different regions and at a different latency from P300, ERGBO may reflect a different physiological role in the cognitive process.
AB - We have recorded electrocorticographic activities (ECoG) from subdural electrodes on the human medial temporal lobe (MTL) and basal temporal lobe (BTL) in epileptic patients during cognitive visual tasks designed to evoke the P300 event related potential (ERP). From those recordings we examined the event related gamma band oscillation (ERGBO) and P300 ERP. While P300 was predominantly observed in the MTL, ERGBO was observed in both MTL and BTL. Resembling to P300, ERGBO responses were more often observed following rare stimuli than frequent stimuli. In average responses the ERGBO to rare stimuli followed P300, beginning at 440.5 ms and continuing for about 100 ms. Past studies suggest P300 ERP component reflects a role in cognitive function. Since ERGBO in the present study appeared in different regions and at a different latency from P300, ERGBO may reflect a different physiological role in the cognitive process.
KW - Basal temporal lobe
KW - Electrocorticogram
KW - Induced gamma oscillations
KW - Medial temporal lobe
KW - P300
UR - http://www.scopus.com/inward/record.url?scp=0036889715&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036889715&partnerID=8YFLogxK
U2 - 10.1016/S0168-0102(02)00159-1
DO - 10.1016/S0168-0102(02)00159-1
M3 - Article
C2 - 12445629
AN - SCOPUS:0036889715
VL - 44
SP - 421
EP - 427
JO - Neuroscience Research
JF - Neuroscience Research
SN - 0168-0102
IS - 4
ER -