Gamma Band Activity in the Reticular Activating System
نویسندگان
چکیده
منابع مشابه
Gamma Band Activity in the Reticular Activating System
This review considers recent evidence showing that cells in three regions of the reticular activating system (RAS) exhibit gamma band activity, and describes the mechanisms behind such manifestation. Specifically, we discuss how cells in the mesopontine pedunculopontine nucleus (PPN), intralaminar parafascicular nucleus (Pf), and pontine subcoeruleus nucleus dorsalis (SubCD) all fire in the bet...
متن کاملThe Preconscious Mind and Gamma Band Activity in the Reticular Activating System
Gamma waves are high frequency neural oscillations in the range of 30–100 Hz, on average ∼40 Hz. These waves have been implicated in creating the unity of conscious perception, or binding, and are related to awareness, problem solving, and rapid eye movement (REM) sleep. Based on our level of awareness, Sigmund Freud and his followers have divided the mind into three different parts, the precon...
متن کاملBottom-up Gamma: the Pedunculopontine Nucleus and Reticular Activating System.
Gamma rhythms have been proposed to promote the feed forward or "bottom-up" flow of information from lower to higher regions in the brain during perception. On the other hand, beta rhythms have been proposed to represent feed back or "top-down" influence from higher regions to lower. The pedunculopontine nucleus (PPN) has been implicated in sleep-wake control and arousal, and is part of the ret...
متن کاملThe Ascending Reticular Activating System from Pontine Reticular Formation to the Thalamus in the Human Brain
INTRODUCTION Action of the ascending reticular activating system (ARAS) on the cerebral cortex is responsible for achievement of consciousness. In this study, we attempted to reconstruct the lower single component of the ARAS from the reticular formation (RF) to the thalamus in the normal human brain using diffusion tensor imaging (DTI). METHODS Twenty six normal healthy subjects were recruit...
متن کاملANALYSIS OF THE RETICULAR ACTIVATING SYSTEM 1 Jo OLDS
Work of Moruzzi and Magoun (1949) and more recent work (Magoun 1954) indicates that electrical stimulation at many points in the tegmentum of cats and monkeys causes electrical and behavioral signs of waking and attention in anesthetized or sleeping animals. These effects are grouped together and labeled arousal or activation, and the region which yields the effects has become known as the reti...
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ژورنال
عنوان ژورنال: Frontiers in Neurology
سال: 2012
ISSN: 1664-2295
DOI: 10.3389/fneur.2012.00006