Table 1.
Changes in alpha band amplitude during tonic experimental pain vs. passive no task control.
STUDY | Pain Stimulus | Fronto-central Scalp | Central Scalp | Temporal Scalp |
---|---|---|---|---|
Backonja et al. (1991) | CPT | ↑ | n.c. | n.c. |
Chang et al. (2001a) | capsaicin sc | n.c. | n.c. | n.c. |
Chang et al. (2001b) | capsaicin im | n.c. | ↓ | n.c. |
Chang et al. (2002a) | CPT | n.c. | ↓ | n.c. |
Chang et al. (2002b) | saline im | n.c. | ↓ | n.c. |
Chen et al. (1989) | CPT | n.c. | n.c. | n.c. |
Chen & Rappelsberger (1994) | CPT | ↓ | ↓ | ↓ |
Chen et al. (1998) | CPT | n.c. | n.c. | n.c. |
Ferracuti et al. (1994) | CPT | ↓ | n.c. | n.c. |
Huber et al. (2006) | Heat | ↓ | n.c. | ↓ |
LaPera et al. (2000) | saline im | n.c. | ↑ | ↑ |
Abbreviations: Fronto-central scalp (Fz, Fpz, Fp1, Fp2 electrodes of the 10–20 electrode system) estimating alpha generated in the anterior cingulate cortex; central scalp (C3, C3′, C4, C4′ of the 10–20 electrode system) estimating alpha generated in SI; temporal scalp (T7 and T8 of the 10–20 electrode system (Sharbrough et al. 1991)) estimating alpha generated in the parietal operculum/insula; CPT = cold pressor test (cold pain); im = intramuscular; sc = subcutaneous; ↑ pain > passive no task control; ↓ pain < passive no task control; n.c. pain = passive no task control.