The Journal of emergency medicine
Coma is not a common symptom of stroke. We present a patient with a stroke to the artery of Percheron, which infarcted the bilateral paramedian thalami and resulted in coma. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Identifying strokes in comatose patients is important for therapeutic management. The bilateral thalami are involved in mai...
Journal of neurology, neurosurgery, and psychiatry
Recurrent seizures in TLE are associated with disturbances in ARAS connectivity, which are part of the widespread network dysfunction that may be related to neurocognitive problems in this devastating disorder.
This review highlights the most important discovery in the reticular activating system in the last 10 years, the manifestation of gamma band activity in cells of the reticular activating system (RAS), especially in the pedunculopontine nucleus, which is in charge of waking and rapid eye movement (REM) sleep. The identification of different cell gro...
Frontiers in neurology
A hallmark of the waking state is a shift in EEG power to higher frequencies with epochs of synchronized intracortical gamma activity (30-60 Hz) - a process associated with high-level cognitive functions. The ascending arousal system, including cholinergic laterodorsal (LDT) and pedunculopontine (PPT) tegmental neurons and serotonergic dorsal raphe...
Journal of vascular and interventional neurology
Stroke can occasionally manifest with non-lateralizing findings such as somnolence and stuttering. We describe a case and discuss the anatomical and physiological implications of this rare combination of symptoms. A 51-year-old woman presented with 3 days of "feeling drunk". She could further specify her symptoms as blurry vision, slurred speech, a...
Handbook of Behavioral Neuroscience
Abstract Pharmacological studies performed on cat and rat brains are reviewed, which have allowed for identification of a widespread cholinoceptive system in the mammalian brain responsible for initiation of defensive vocalizations characteristic of aversive behavioral situations. Intracerebral injections of a predominantly muscarinic agent, carbac...