Christopher Wong

TL;DR: The association between level of dopamine D2 receptors and metabolism in the orbit ofrontal cortex in methamphetamine abusers suggests that D2 receptor-mediated dysregulation of the orbitofrontal cortex could underlie a common mechanism for loss of control and compulsive drug intake in drug-addicted subjects.

TL;DR: Evidence that expectation amplifies the effects of methylphenidate in brain and its reinforcing effects is provided and the thalamus, a region involved with conditioned responses, may mediate the enhancement of the reinforcing effects ofmethylphenidate by expectation and that the orbitofrontal cortex mediates the response to unexpected reinforcement is suggested.

TL;DR: In this paper, the effects of exposure to radiofrequency-modulated electromagnetic fields (RF-EMF) emitted by cell phones are investigated in the brain, and the authors found that exposure to RF-EMFs from cell phones is well localized and is highest in brain regions closest to the antenna.

TL;DR: In healthy participants and compared with no exposure, 50-minute cell phone exposure was associated with increased brain glucose metabolism in the region closest to the antenna, of unknown clinical significance.