Abstract
To clarify the nature of auditory P50, middle latency auditory evoked potentials were recorded by using different condition of reference electrodes (linked earlobes, LE; balanced non-cephalic, BN), stimulation characteristics (tone burst, human voice) and tasks (counting, simple reaction) in 10 right- handed males (aged 21-36 years). EEG was recorded from Fz, Cz, Pz, C3, C4, T3 and T4 according to the 10-20 system. Two groups of electrode sites were made for the statistical analysis: a midline group. Fz, Cz and Pz; and a lateral group, T3, C3, Cz, C4 and T4. The results were that the P50 amplitudes with BN electrodes were significantly higher than those with LE in both groups (midline, P<0.01; lateral, P<0.01); the P50 amplitudes by voice stimulations were significantly higher than those by tone stimulation in the lateral group (P<0.05), and the P50 latencies under a simple reaction paradigm were significantly shorter than those under a counting task in both groups (midline, P<0.05; lateral, P<0.05). These results suggest that various factors including motor response affect the P50 amplitudes and latencies.
| Original language | English |
|---|---|
| Pages (from-to) | 139-143 |
| Number of pages | 5 |
| Journal | Psychiatry and Clinical Neurosciences |
| Volume | 51 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Jan 1 1997 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Neuroscience(all)
- Neurology
- Clinical Neurology
- Psychiatry and Mental health
Cite this
Influence of reference electrodes, stimulation characteristics and task paradigms on auditory P50. / Chen, Chung Ho; Ninomiya, Hideaki; Onitsuka, Toshiaki.
In: Psychiatry and Clinical Neurosciences, Vol. 51, No. 3, 01.01.1997, p. 139-143.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of reference electrodes, stimulation characteristics and task paradigms on auditory P50
AU - Chen, Chung Ho
AU - Ninomiya, Hideaki
AU - Onitsuka, Toshiaki
PY - 1997/1/1
Y1 - 1997/1/1
N2 - To clarify the nature of auditory P50, middle latency auditory evoked potentials were recorded by using different condition of reference electrodes (linked earlobes, LE; balanced non-cephalic, BN), stimulation characteristics (tone burst, human voice) and tasks (counting, simple reaction) in 10 right- handed males (aged 21-36 years). EEG was recorded from Fz, Cz, Pz, C3, C4, T3 and T4 according to the 10-20 system. Two groups of electrode sites were made for the statistical analysis: a midline group. Fz, Cz and Pz; and a lateral group, T3, C3, Cz, C4 and T4. The results were that the P50 amplitudes with BN electrodes were significantly higher than those with LE in both groups (midline, P<0.01; lateral, P<0.01); the P50 amplitudes by voice stimulations were significantly higher than those by tone stimulation in the lateral group (P<0.05), and the P50 latencies under a simple reaction paradigm were significantly shorter than those under a counting task in both groups (midline, P<0.05; lateral, P<0.05). These results suggest that various factors including motor response affect the P50 amplitudes and latencies.
AB - To clarify the nature of auditory P50, middle latency auditory evoked potentials were recorded by using different condition of reference electrodes (linked earlobes, LE; balanced non-cephalic, BN), stimulation characteristics (tone burst, human voice) and tasks (counting, simple reaction) in 10 right- handed males (aged 21-36 years). EEG was recorded from Fz, Cz, Pz, C3, C4, T3 and T4 according to the 10-20 system. Two groups of electrode sites were made for the statistical analysis: a midline group. Fz, Cz and Pz; and a lateral group, T3, C3, Cz, C4 and T4. The results were that the P50 amplitudes with BN electrodes were significantly higher than those with LE in both groups (midline, P<0.01; lateral, P<0.01); the P50 amplitudes by voice stimulations were significantly higher than those by tone stimulation in the lateral group (P<0.05), and the P50 latencies under a simple reaction paradigm were significantly shorter than those under a counting task in both groups (midline, P<0.05; lateral, P<0.05). These results suggest that various factors including motor response affect the P50 amplitudes and latencies.
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U2 - 10.1111/j.1440-1819.1997.tb02376.x
DO - 10.1111/j.1440-1819.1997.tb02376.x
M3 - Article
C2 - 9225378
AN - SCOPUS:0030900399
VL - 51
SP - 139
EP - 143
JO - Psychiatry and Clinical Neurosciences
JF - Psychiatry and Clinical Neurosciences
SN - 1323-1316
IS - 3
ER -