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[The similarity and difference between dogs assessed by the indices of the summary electrical activity of the frontal cortex, hippocampus, amygdala and hypothalamus]. 1996

L I Chilingarian, and N N Bogdanov, and V N Mats

Eight dogs were bilaterally implanted with stainless steel electrodes in dorsal and ventral hippocampi (DHp, VHp), basolateral amygdala (BLA), lateral hypothalamus (LH) and with silver spherical electrodes in the frontal cortex (FC). The EEG of these structures was recorded in the state of wakefulness without any stimulation. Rhythmical activity in the theta (4.4 +/- 0.05 Hz) and alpha (10.7 +/- 0.2 Hz) ranges was revealed in all the dogs. Rhythm of the beta-2 range (22.4 +/- 0.1 Hz) was recorded in four, and that of the beta-3 (37.8 +/- 0.5 Hz) only in two of the animals. The mean frequency of the theta-rhythm recorded in the LH was higher (p < 0.001) than that in the VHp and AMB. The spectral density in the theta range was higher in the VHp than that in the other structures (p < 0.01). The same values for the DHp and AMB were higher that for the LH (p < 0.001) and FC (p < 0.01). The spectral densities in the right DHp and VHp were higher than in the symmetrical left derivations (p < 0.001). The dogs were different in the expression of specific rhythms, their frequency and power. These characteristics depended on the degree of emotional excitation and motor activity of the dogs during recording of the electrical activity.

UI MeSH Term Description Entries
D007026 Hypothalamic Area, Lateral Area in the hypothalamus bounded medially by the mammillothalamic tract and the anterior column of the FORNIX (BRAIN). The medial edge of the INTERNAL CAPSULE and the subthalamic region form its lateral boundary. It contains the lateral hypothalamic nucleus, tuberomammillary nucleus, lateral tuberal nuclei, and fibers of the MEDIAL FOREBRAIN BUNDLE. Lateral Hypothalamic Area,Lateral Hypothalamic Nucleus,Tuberomammillary Nucleus,Accessory Nucleus of the Ventral Horn,Area Hypothalamica Lateralis,Area Lateralis Hypothalami,Lateral Hypothalamus,Lateral Tuberal Nuclei,Lateral Tuberal Nucleus,Area Hypothalamica Laterali,Area Lateralis Hypothalamus,Area, Lateral Hypothalamic,Areas, Lateral Hypothalamic,Hypothalami, Area Lateralis,Hypothalamic Areas, Lateral,Hypothalamic Nucleus, Lateral,Hypothalamica Laterali, Area,Hypothalamica Lateralis, Area,Hypothalamus, Area Lateralis,Hypothalamus, Lateral,Lateral Hypothalamic Areas,Laterali, Area Hypothalamica,Lateralis Hypothalami, Area,Lateralis Hypothalamus, Area,Lateralis, Area Hypothalamica,Nuclei, Lateral Tuberal,Nucleus, Lateral Hypothalamic,Nucleus, Lateral Tuberal,Nucleus, Tuberomammillary,Tuberal Nuclei, Lateral,Tuberal Nucleus, Lateral
D007206 Individuality Those psychological characteristics which differentiate individuals from one another. Individual Differences,Difference, Individual,Differences, Individual,Individual Difference
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D004567 Electrodes, Implanted Surgically placed electric conductors through which ELECTRIC STIMULATION is delivered to or electrical activity is recorded from a specific point inside the body. Implantable Electrodes,Implantable Stimulation Electrodes,Implanted Electrodes,Implanted Stimulation Electrodes,Electrode, Implantable,Electrode, Implantable Stimulation,Electrode, Implanted,Electrode, Implanted Stimulation,Electrodes, Implantable,Electrodes, Implantable Stimulation,Electrodes, Implanted Stimulation,Implantable Electrode,Implantable Stimulation Electrode,Implanted Electrode,Implanted Stimulation Electrode,Stimulation Electrode, Implantable,Stimulation Electrode, Implanted,Stimulation Electrodes, Implantable,Stimulation Electrodes, Implanted
D004569 Electroencephalography Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain. EEG,Electroencephalogram,Electroencephalograms
D004594 Electrophysiology The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.
D005625 Frontal Lobe The part of the cerebral hemisphere anterior to the central sulcus, and anterior and superior to the lateral sulcus. Brodmann Area 8,Brodmann's Area 8,Frontal Cortex,Frontal Eye Fields,Lobus Frontalis,Supplementary Eye Field,Area 8, Brodmann,Area 8, Brodmann's,Brodmanns Area 8,Cortex, Frontal,Eye Field, Frontal,Eye Field, Supplementary,Eye Fields, Frontal,Frontal Cortices,Frontal Eye Field,Frontal Lobes,Lobe, Frontal,Supplementary Eye Fields
D006624 Hippocampus A curved elevation of GRAY MATTER extending the entire length of the floor of the TEMPORAL HORN of the LATERAL VENTRICLE (see also TEMPORAL LOBE). The hippocampus proper, subiculum, and DENTATE GYRUS constitute the hippocampal formation. Sometimes authors include the ENTORHINAL CORTEX in the hippocampal formation. Ammon Horn,Cornu Ammonis,Hippocampal Formation,Subiculum,Ammon's Horn,Hippocampus Proper,Ammons Horn,Formation, Hippocampal,Formations, Hippocampal,Hippocampal Formations,Hippocampus Propers,Horn, Ammon,Horn, Ammon's,Proper, Hippocampus,Propers, Hippocampus,Subiculums
D000679 Amygdala Almond-shaped group of basal nuclei anterior to the INFERIOR HORN OF THE LATERAL VENTRICLE of the TEMPORAL LOBE. The amygdala is part of the limbic system. Amygdaloid Body,Amygdaloid Nuclear Complex,Amygdaloid Nucleus,Archistriatum,Corpus Amygdaloideum,Intercalated Amygdaloid Nuclei,Massa Intercalata,Nucleus Amygdalae,Amygdalae, Nucleus,Amygdaloid Bodies,Amygdaloid Nuclear Complices,Amygdaloid Nuclei, Intercalated,Amygdaloid Nucleus, Intercalated,Amygdaloideum, Corpus,Amygdaloideums, Corpus,Archistriatums,Complex, Amygdaloid Nuclear,Complices, Amygdaloid Nuclear,Corpus Amygdaloideums,Intercalata, Massa,Intercalatas, Massa,Intercalated Amygdaloid Nucleus,Massa Intercalatas,Nuclear Complex, Amygdaloid,Nuclear Complices, Amygdaloid,Nuclei, Intercalated Amygdaloid,Nucleus, Amygdaloid,Nucleus, Intercalated Amygdaloid
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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