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Clinical EEG and Neuroscience, 2008
A prominent theta rhythm dominates the EEG of rodents such as rabbits, rats and mice. This rhythmical activity is preponderant in the hippocampus and may become quite widespread; it is usually arousal-related and generated by cholinergic mechanisms. This pattern has been intensively studied by experimental neuroscientists but is rather little known in
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A prominent theta rhythm dominates the EEG of rodents such as rabbits, rats and mice. This rhythmical activity is preponderant in the hippocampus and may become quite widespread; it is usually arousal-related and generated by cholinergic mechanisms. This pattern has been intensively studied by experimental neuroscientists but is rather little known in
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Differential shaping of EEG theta rhythms
Biofeedback and Self-Regulation, 1976Heart rate, EEG, frontal EMG, and forearm EMG were recorded in 20 subjects for 3 baseline, 8 feedback, and 2 postbaseline sessions in order to compare two biofeedback methods of teaching subjects to increase theta EEG activity. Subjects were divided into high- and low-EMG groups.
P, Sittenfeld, T, Budzynski, J, Stoyva
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Theta rhythms: State of consciousness
Brain Topography, 1990The role of midline frontal theta in human is discussed, with reference to its relation on consciousness. Clinical observations of the appearance of this theta activity under various conditions are reviewed. These include simulated diving, brain tumour, chemical intoxication, exercise, mental calculation, sleep and medication.
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Hippocampal theta rhythm: Intra-hippocampal formation contributions
Brain Research, 1974Abstract The intra-hippocampal organization of theta rhythm was examined in chronically implanted rats. Small lesions were placed in the posterior aspects of the hippocampal formation and the subsequent effect of the lesion ascertained electrophysiologically. Lesions of the subiculum significantly diminished the amount of theta rhythm present and the
R B, Chronister +3 more
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Septo-hippocampal relationship during EEG theta rhythm
Electroencephalography and Clinical Neurophysiology, 1982The firing pattern of 96 neuron in the medial septal nucleus (MSN) and diagonal band of Broca (DBB) and their functional relationships with hippocampal theta generators were investigated in rats during physostigmine-induced hippocampal theta rhythm (theta). Three types of discharge were found.
J M, Gaztelu, W, Buño
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Rat hippocampal theta rhythm during sensory mismatch
Hippocampus, 2008AbstractIt has been suggested that sensory mismatch induces motion sickness, but its neural mechanisms remain unclear. To investigate this issue, theta waves in the hippocampal formation (HF) were studied during sensory mismatch by backward translocation in awake rats.
D, Zou +6 more
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Theta rhythm: The brain stem involvement
Neuroscience & Biobehavioral Reviews, 1992This review considers the influence of brain stem transections on hippocampal theta rhythm appearance in the acute transected rat and cat. The pretrigeminal transection induces in both species continuous or almost continuous low-frequency theta rhythm while the cortex is desynchronized.
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Does a Healing Procedure Referring to Theta Rhythms Also Generate Theta Rhythms in the Brain?
The Journal of Alternative and Complementary Medicine, 2016ThetaHealing® (Vianna Stibal, Kalispell, MT) is a spiritual healing method in which the practitioner and client engage in joint meditations during several healing sessions. It is claimed that these meditation periods are characterized by a "theta state" in which the presence of theta-waves in the electroencephalograph (EEG) frequency spectrum of both ...
Hinterberger, Thilo +2 more
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Mechanisms and Functions of Theta Rhythms
Annual Review of Neuroscience, 2013The theta rhythm is one of the largest and most sinusoidal activity patterns in the brain. Here I survey progress in the field of theta rhythms research. I present arguments supporting the hypothesis that theta rhythms emerge owing to intrinsic cellular properties yet can be entrained by several theta oscillators throughout the brain.
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Episodic Rage, Theta Rhythm, and Obsessions
Journal of Mental Science, 1953The association of an abnormal electroencephalogram with obsessive-compulsive states has been investigated by Pacellaet al.(1944), who found in these states a higher incidence of “convulsive-type” patterns, consisting of occasional or frequent runs of serial 2–4 c/s potentials of high amplitude than in a random control group.
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