The thalamus as the generator and modulator of EEG alpha rhythm: a combined PET/EEG study with lorazepam challenge in humans

@article{Schreckenberger2004TheTA,
  title={The thalamus as the generator and modulator of EEG alpha rhythm: a combined PET/EEG study with lorazepam challenge in humans},
  author={Mathias Schreckenberger and Christian Lange-Asschenfeldt and Matthias Lochmann and Klaus Mann and Thomas Siessmeier and Hans-Georg Buchholz and Peter Bartenstein and Gerhard Gr{\"u}nder},
  journal={NeuroImage},
  year={2004},
  volume={22},
  pages={637-644}
}
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References

SHOWING 1-10 OF 44 REFERENCES
EEG Alpha Rhythm and Glucose Metabolic Rate in the Thalamus in Schizophrenia
TLDR
The present findings provide evidence for involvement of the thalamus in the generation of alpha rhythm in humans and suggest differences in thalamocortical circuits between normal controls and schizophrenic subjects.
Relations between PET-derived measures of thalamic glucose metabolism and EEG alpha power.
Electroencephalogram (EEG) alpha power has been demonstrated to be inversely related to mental activity and has subsequently been used as an indirect measure of brain activation. The thalamus has
Neural networks for generation and suppression of alpha rhythm: a PET study
TLDR
Neuronal activities of the brain stem and limbic system that are positively correlated with alpha power may provide an anatomical basis for studies of the relationship between emotional state and brain rhythm in health and disease.
Simultaneous EEG and fMRI of the alpha rhythm
TLDR
It is found that increased alpha power was correlated with decreased MRI signal in multiple regions of occipital, superior temporal, inferior frontal, and cingulate cortex, and with increased signal in the thalamus and insula and may have important implications for interpretation of resting baseline in fMRI studies.
Reproducibility of regional brain metabolic responses to lorazepam.
  • G. Wang, N. Volkow, J. Fowler
  • Medicine, Biology
    Journal of nuclear medicine : official publication, Society of Nuclear Medicine
  • 1996
TLDR
The test-retest reproducibility in regional brain metabolic responses was measured, and although the global and regional metabolic values were significantly lower for the repeated evaluation, the response to lorazepam was highly reproducible.
...
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