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Table 1 Power and coherence effects in ASD compared with typically developing individuals

From: Resting state EEG abnormalities in autism spectrum disorders

Frequency band Brain region(s) Effect Ref(s)
   Absolute power  
Delta Frontal  Enhanced [74, 75]
  Frontal Reduced [77, 80]
  Central/parietal  Enhanced [73]
  Temporal Reduced [80]
Theta Frontal/prefrontal  Enhanced [75, 78]
  Frontal Reduced [80]
  Temporal Reduced [80]
  Parietal Reduced [80]
Alpha All regions  No effect [77, 105]
  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 [72, 73]
  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 [77, 119]
  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 [74, 78]
  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 [72, 74]
  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 [106, 107]
  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]