Fluorodeoxyglucose PET and Consciousness.
C. Ayubcha, Thomas Werner, Abass Alavi, Andrew B. Newberg
PET Clinics July 1, 2026 DOI: 10.1016/j.cpet.2026.04.001 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Review Peer reviewed |
|---|---|
| Key findings | Argues that FDG PET neuroimaging has provided insights into the neural correlates of consciousness across various states, but faces significant methodological and conceptual limitations. |
Abstract
An expanding body of advanced functional neuroimaging research, particularly using fluorodeoxyglucose (FDG) PET, has sought to characterize the neurologic foundations of consciousness. Investigations have examined a broad spectrum of conscious states, as well as experimental methods for inducing alterations in conscious experience. These states range from typical waking awareness to various stages of sleep, the anesthetized brain, and conditions associated with neurologic or psychiatric disorders such as seizures and schizophrenia. This review describes key findings from these lines of inquiry and discusses the methodological limitations and conceptual challenges in studying consciousness through neuroimaging approaches such as FDG PET.
Citations in the library
Cites 28
- Meditation experience is associated with increased cortical thickness Neuroreport November 7, 2005
- Meditation experience is associated with differences in default mode network activity and connectivity Proceedings of the National Academy of Sciences November 23, 2011
- Neural correlates of the psychedelic state as determined by fMRI studies with psilocybin Proceedings of the National Academy of Sciences January 23, 2012
- Psilocybin-occasioned mystical-type experience in combination with meditation and other spiritual practices produces enduring positive changes in psychological functioning and in trait measures of prosocial attitudes and behaviors Journal of Psychopharmacology October 11, 2017
- Effects of mindful-attention and compassion meditation training on amygdala response to emotional stimuli in an ordinary, non-meditative state Frontiers in Human Neuroscience 2012
and 23 more in the library