Table 2.
Effect of Prestimulus EEG Alpha Phase on BOLD Response to Auditory Targets and Task-Related Processing.
| PHASE
| ||||||||
|---|---|---|---|---|---|---|---|---|
| BOLD Response to Target Stimuli
| ||||||||
| contrast | Nvox | max z | pcluster | MNIx | MNIy | MNIz | hem | region |
| positive > negative | 112 | 3.19 | 0.0027 | 6 | −56 | 56 | R | precuneus |
| positive > negative | 80 | 3.10 | 0.0063 | −38 | −78 | −26 | L | cerebellum, occipital fusiform gyrus |
| negative > positive | 109 | 3.55 | 0.0026 | −18 | −18 | 8 | L | thalamus |
| negative > positive | 43 | 3.25 | 0.0194 | 14 | −16 | 6 | R | thalamus |
| decreasing > increasing | 39 | 3.20 | 0.0241 | −38 | −4 | 60 | L | MFG, precentral gyrus |
| Task Related BOLD Activity (Targets vs. Standards)
| ||||||||
|---|---|---|---|---|---|---|---|---|
| paired t-test | Nvox | max z | pcluster | MNIx | MNIy | MNIz | hem | region |
| negative > positive | 118 | 3.30 | 0.0027 | −18 | −18 | 8 | L | thalamus |
| negative > positive | 61 | 2.98 | 0.0109 | 14 | −16 | 8 | R | thalamus |
| increasing > decreasing | 26 | 3.30 | 0.0456 | 20 | −14 | −18 | R | hippocampus, amygdala, parahippocampal gyrus |
| decreasing > increasing | 34 | 2.94 | 0.0293 | −40 | −2 | 58 | L | MFG, precentral gyrus, SFG |
| waxing > waning | 240 | 3.40 | 0.0008 | 0 | −74 | 36 | L/R | precuneus cortex, cuneal cortex, superior LOC |
| waxing > waning | 96 | 3.25 | 0.0038 | 4 | 60 | 4 | L/R | frontal pole, paracingulate gyrus |
| waxing > waning | 72 | 3.20 | 0.0082 | −10 | −94 | 6 | L | occipital pole, supracalcarine cortex |
| waxing > waning | 38 | 2.84 | 0.0270 | 4 | −74 | 20 | L/R | cuneal cortex, supracalcarine cortex |
Per-voxel thresholded at p < 0.005 then cluster-corrected at p < 0.05. LOC = lateral occipital cortex; MFG = middle frontal gyrus; SFG = superior frontal gyrus.