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Gamma band activity in the RAS-intracellular mechanism
(Springer, 2014-05)
Gamma band activity participates in sensory perception, problem solving, and memory. This review considers recent evidence showing that cells in the reticular activating system (RAS) exhibit gamma band activity, and describes ...
Bottom-up gamma and bipolar disorder, clinical and neuroepigenetic implications
(Wiley Blackwell Publishing, Inc, 2019-03)
Objectives: This limited review examines the role of the reticular activating system (RAS), especially the pedunculopontine nucleus (PPN), one site of origin of bottom-up gamma, in the symptoms of bipolar disorder (BD).Methods: ...
A Brainstem Locomotor Circuit Drives the Activity of Speed Cells in the Medial Entorhinal Cortex
(Elsevier Science, 2020-09)
Locomotion activates an array of sensory inputs that may help build the self-position map of the medial entorhinal cortex (MEC). In this map, speed-coding neurons are thought to dynamically update representations of the ...
Modulation of gamma oscillations in the pedunculopontine nucleus by neuronal calcium sensor protein-1: Relevance to schizophrenia and bipolar disorder
(American Physiological Society, 2015-02)
Reduced levels of gamma-band activity are present in schizophrenia and bipolar disorder patients. In the same disorders, increased neuronal calcium sensor protein-1 (NCS-1) expression was reported in a series of postmortem ...
Intracellular mechanisms modulating gamma band activity in the pedunculopontine nucleus (PPN)
(Wiley Blackwell Publishing, Inc, 2016-06)
The pedunculopontine nucleus is a part of the reticular activating system, and is active during waking and REM sleep. Previous results showed that all PPN cells tested fired maximally at gamma frequencies when depolarized. ...
Local and Relayed Effects of Deep Brain Stimulation of the Pedunculopontine Nucleus
(Molecular Diversity Preservation International, 2019-03)
Our discovery of low-threshold stimulation-induced locomotion in the pedunculopontine nucleus (PPN) led to the clinical use of deep brain stimulation (DBS) for the treatment of disorders such as Parkinson's disease (PD) ...
The 10 Hz frequency: A fulcrum for transitional brain states
(Open Access Text, 2016-04)
A 10 Hz rhythm is present in the occipital cortex when the eyes are closed (alpha waves), in the precentral cortex at rest (mu rhythm), in the superior and middle temporal lobe (tau rhythm), in the inferior olive (projection ...
Implications of gamma band activity in the pedunculopontine nucleus
(Springer Wien, 2016-07)
The fact that the pedunculopontine nucleus (PPN) is part of the reticular activating system places it in a unique position to modulate sensory input and fight-or-flight responses. Arousing stimuli simultaneously activate ...
The pedunculopontine nucleus: From posture and locomotion to neuroepigenetics
(AIMS Press, 2019-09)
In this review, we discuss first an example of one of the symptoms of PD, freezing of gait (FOG), then we will turn to the use of deep brain stimulation (DBS) of the pedunculopontine nucleus (PPN) to treat PD, and the ...
Class II histone deacetylases require P/Q-type Ca2+ channels and CaMKII to maintain gamma oscillations in the pedunculopontine nucleus
(Nature Publishing Group, 2018-12)
Epigenetic mechanisms (i.e., histone post-translational modification and DNA methylation) play a role in regulation of gene expression. The pedunculopontine nucleus (PPN), part of the reticular activating system, manifests ...