Table 4.
Overview Of ERO studies on alcohol addiction
| Methods | Findings | |
|---|---|---|
| ERO extraction | Participants | |
| Trial averaging | 20 alcohol use (Krause et al. 2002) | Significantly decreased EEG theta ERS (centre and anterior) during encoding and decreased lower alpha ERD during retrieval (centre and posterior) |
| 58 alcoholics and 29 controls (Kamarajan et al. 2004) | Significant reduction in delta and theta power during NoGo trials in frontal → deficient inhibitory control and information-processing mechanism | |
| 50 people with family history of alcoholics and 50 controls (Kamarajan et al. 2006) | Significant reduction in delta and theta and alpha 1 (8–9 Hz) power during No-Go trials | |
| This reduction was prominent at the frontal region | ||
| 77 detoxified patients and 45 controls (Tcheslavski and Gonen 2012) | Reduce power in frontal region for low EEG frequency, and more occipital in higher frequency | |
| 122 alcoholics and 77 controls (Padmanabhapillai et al. 2006) | Significant reduction of the early evoked gamma band response in the frontal region during target stimulus processing | |
| 100 alcoholics and 100 controls (Jones et al. 2006) | Significant lower P300 (compared with N100, N200, P200) amplitudes in alcoholics (compared with controls) | |
| Alcoholic were significantly less ERO power in the posterior delta EROEVK (forming P3) and frontally theta EROTOT (early P3) bands but not in the alpha band | ||
| 48 low risk and 98 high risk subjects (Rangaswamy et al. 2007) | The theta and delta post-stimulus oscillations are remarkably reduced in adolescent offspring of alcoholics | |
| The P300 amplitudes are reduced not as strong as seen for the oscillations | ||
| 48 LTAAs and 48 NACs (Andrew and Fein 2010a) | The LTAA showed significantly lower evoked Delta ERO power and total delta and theta ERO power. It provided an alternative and comparable representation of the reduced P3b amplitude in LTAA | |
| 48 LTAAs and 48 NACs (Andrew and Fein 2010b) | Significantly larger theta ERS to the target stimulus in LTAAs. Induce theta power measures are more powerful and independent group discriminators than the P3b amplitude | |
| 43 LTAAs, 31 STAAs and 72 controls (Gilmore and Fein 2012) | Theta ERS was larger in both STAA and LTAA compared with controls and the magnitude of this enhancement was greater in STAA than in LTAA | |