From: Resting state EEG abnormalities in autism spectrum disorders
Frequency band | Brain region(s) | Effect | Ref(s) |
---|---|---|---|
 |  | Absolute power |  |
Delta | Frontal |  Enhanced | |
 | Frontal |  Reduced | |
 | Central/parietal |  Enhanced | [73] |
 | Temporal |  Reduced | [80] |
Theta | Frontal/prefrontal |  Enhanced | |
 | Frontal |  Reduced | [80] |
 | Temporal |  Reduced | [80] |
 | Parietal |  Reduced | [80] |
Alpha | All regions |  No effect | |
 | Frontal/prefrontal |  Reduced | [80] |
 | Frontal |  Enhanced | [106] |
 | Parietal |  Enhanced | [106] |
 | Central |  Enhanced | [106] |
 | Temporal |  Reduced | [80] |
Beta | All regions |  No effect | [80] |
 | All regions |  Reduced | [77] |
Gamma | Midline/central and parietal |  Enhanced | [79] |
 |  | Relative power |  |
Delta | All regions |  Enhanced | [72] |
 | Frontal |  Reduced | [77] |
 | Central/parietal |  Enhanced | [73] |
Theta | Frontal/prefrontal |  Enhanced | [76] |
 | Right posterior |  Enhanced | [77] |
Alpha | All regions |  Reduced | |
 | All regions |  No effect | [77] |
 | Frontal/prefrontal |  Reduced | [76] |
 | Occipital/parietal |  Reduced | [76] |
Beta | Occipital/parietal |  Enhanced | [76] |
 |  | Coherence |  |
Delta | Short/long intrahemispheric |  Reduced | [77] |
 | Lateral-frontal intrahemispheric |  Enhanced | [118] |
 | Middle frontal |  Reduced | [118] |
 | Occipital |  Reduced | [118] |
 | Frontal |  Reduced interhemispheric | [77] |
 | Temporal |  Reduced interhemispheric | [77] |
 | Central/parietal/occipital |  Reduced interhemispheric | [77] |
Theta | Short/long intrahemispheric |  Reduced | |
 | Short/long intrahemispheric |  Enhanced | [76] |
 | Frontal |  Reduced interhemispheric | [77] |
 | Temporal |  Reduced interhemispheric | [77] |
 | Central/parietal/occipital |  Reduced interhemispheric | [77] |
Alpha | Frontal |  Reduced | [76] |
 | Between frontal and all other regions |  Reduced | [76] |
 | Temporal |  Reduced interhemispheric | [77] |
Short/long intrahemispheric |  Reduced | [119] | |
Beta | Central/parietal/occipital |  Reduced interhemispheric | [77] , |
Frontal-temporal |  Reduced | [119] | |
Short/long intrahemispheric |  Reduced | [119] | |
 |  | Hemispheric asymmetry |  |
Delta | Frontal |  Reduced power in left hemisphere | [80] |
 | Frontal |  Enhanced power in left compared with right hemisphere | [74] |
 | Temporal |  Reduced power in left hemisphere | [80] |
 | Temporal |  Enhanced power in left compared with right hemisphere | [74] |
 | Parietal |  Enhanced power in left compared with right hemisphere | [74] |
 | Posterior-temporal |  Enhanced power in left compared with right hemisphere | [72] |
 | Central |  Enhanced power in left compared with right hemisphere | [72] |
 | Occipital |  Enhanced power in left compared with right hemisphere | [72] |
 | Occipital |  No difference between left and right hemispheres | [105] |
Theta | Frontal |  Reduced power in left hemisphere | [80] |
 | Frontal |  Enhanced power in left compared with right hemisphere | |
 | Temporal |  Reduced power in left hemisphere | [80 |
 | Temporal |  Enhanced power in left compared with right hemisphere | [74] |
 | Parietal |  Enhanced power in left compared with right hemisphere | [74] |
 | Right posterior |  Enhanced power in right hemisphere | [77] |
 | Posterior-temporal |  Enhanced power in left compared with right hemisphere | [72] |
 | Central |  Enhanced power in left compared with right hemisphere | |
 | Occipital |  Enhanced power in left compared with right hemisphere | [72,[74] |
 | Occipital |  No difference between left and right hemispheres | [105] |
Alpha | Frontal |  Reduced power in left hemisphere | [80] |
 | Mid-frontal |  Enhanced power in left compared with right hemisphere | |
 | Temporal |  Reduced power in left hemisphere | [80] |
 | Temporal |  Enhanced power in left compared with right hemisphere | [74] |
 | Parietal |  Enhanced power in left compared with right hemisphere | [74] |
 | Posterior-temporal |  Enhanced power in left compared with right hemisphere | [72] |
 | Central |  Enhanced power in left compared with right hemisphere | [72] |
 | Occipital |  Enhanced power in left compared with right hemisphere | [72] |
 | Occipital |  No difference between left and right hemispheres | [105] |
Beta | Posterior-temporal |  Enhanced power in left compared with right hemisphere | [72] |
 | Central |  Enhanced power in left compared with right hemisphere | [72] |
 | Occipital |  Enhanced power in left compared with right hemisphere | [72] |
 | Occipital |  No difference between left and right hemispheres | [105] |
Mu | Central |  No difference between left and right hemispheres | [74] |