Biomaterial Database

[Bioelectrical activity of the cortex and several subcortical formations in experimental neurosis]. 1976

S N Luk'ianova

Experimental neurosis was achieved in fifteen rabbits (both fixed on a stand and unrestrained) by sudden, drastic enhancement of a pain electrocutaneous stimulation used as reinforcement, at the stage of a stable elaborated avoidance reflex. The experimental neurosis was characterized by a prolonged (one to two months) disturbance of conditioned activity, greater motor restlessness, predominance of the fear type reactions, the animals' reduced weight, higher pulse and respiratory rate. Dynamics of the respiratory rate and brain bioelectrical activity became chaotic. Simultaneously, bioelectrical activity revealed greater similarity of the processes in the cortex and subcortical structures at one and the same moment. Analysis of the electrogram frequency spectra of different brain formations, pointed to an enhancement in all frequency ranges (with the exception of gamma), with a clear predominance of the 6 to 10 c/s band which was most distinctly expressed in the amygdaloid structures.

UI	MeSH Term	Description	Entries
D007032	Hypothalamus, Anterior	The front portion of the HYPOTHALAMUS separated into the preoptic region and the supraoptic region. The preoptic region is made up of the periventricular GRAY MATTER of the rostral portion of the THIRD VENTRICLE and contains the preoptic ventricular nucleus and the medial preoptic nucleus. The supraoptic region contains the PARAVENTRICULAR HYPOTHALAMIC NUCLEUS, the SUPRAOPTIC NUCLEUS, the ANTERIOR HYPOTHALAMIC NUCLEUS, and the SUPRACHIASMATIC NUCLEUS.	Hypothalamus, Supraoptic,Anterior Hypothalamic Commissure,Anterior Hypothalamic Decussation of Ganser,Anteroventral Periventricular Nucleus,Anterior Hypothalamic Commissures,Anterior Hypothalamus,Commissure, Anterior Hypothalamic,Commissures, Anterior Hypothalamic,Hypothalamic Commissure, Anterior,Hypothalamic Commissures, Anterior,Nucleus, Anteroventral Periventricular,Periventricular Nucleus, Anteroventral,Supraoptic Hypothalamus
D007034	Hypothalamus, Posterior	The part of the hypothalamus posterior to the middle region consisting of several nuclei including the medial maxillary nucleus, lateral mammillary nucleus, and posterior hypothalamic nucleus (posterior hypothalamic area). The posterior hypothalamic area is concerned with control of sympathetic responses and is sensitive to conditions of decreasing temperature and controls the mechanisms for the conservation and increased production of heat.	Hypothalamic Region, Posterior,Posterior Hypothalamic Region,Area Hypothalamica Posterior,Hypothalamus Posterior,Mammillary Region,Posterior Hypothalamus,Posterior Periventricular Nucleus,Premammillary Nucleus,Supramammillary Commissure,Supramammillary Nucleus,Area Hypothalamica Posteriors,Commissure, Supramammillary,Commissures, Supramammillary,Hypothalamic Regions, Posterior,Hypothalamica Posterior, Area,Hypothalamica Posteriors, Area,Hypothalamus Posteriors,Mammillary Regions,Nucleus, Posterior Periventricular,Nucleus, Premammillary,Nucleus, Supramammillary,Periventricular Nucleus, Posterior,Posterior Hypothalamic Regions,Posterior, Area Hypothalamica,Posterior, Hypothalamus,Posteriors, Area Hypothalamica,Posteriors, Hypothalamus,Region, Mammillary,Region, Posterior Hypothalamic,Regions, Mammillary,Regions, Posterior Hypothalamic,Supramammillary Commissures
D008636	Mesencephalon	The middle of the three primitive cerebral vesicles of the embryonic brain. Without further subdivision, midbrain develops into a short, constricted portion connecting the PONS and the DIENCEPHALON. Midbrain contains two major parts, the dorsal TECTUM MESENCEPHALI and the ventral TEGMENTUM MESENCEPHALI, housing components of auditory, visual, and other sensorimoter systems.	Midbrain,Mesencephalons,Midbrains
D009497	Neurotic Disorders	Disorders in which the symptoms are distressing to the individual and recognized by him or her as being unacceptable. Social relationships may be greatly affected but usually remain within acceptable limits. The disturbance is relatively enduring or recurrent without treatment.	Neuroses,Psychoneuroses,Disorder, Neurotic,Disorders, Neurotic,Neurotic Disorder
D011817	Rabbits	A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes.	Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
D012154	Reticular Formation	A region extending from the PONS & MEDULLA OBLONGATA through the MESENCEPHALON, characterized by a diversity of neurons of various sizes and shapes, arranged in different aggregations and enmeshed in a complicated fiber network.	Formation, Reticular,Formations, Reticular,Reticular Formations
D001921	Brain	The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.	Encephalon
D001931	Brain Mapping	Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures.	Brain Electrical Activity Mapping,Functional Cerebral Localization,Topographic Brain Mapping,Brain Mapping, Topographic,Functional Cerebral Localizations,Mapping, Brain,Mapping, Topographic Brain
D002540	Cerebral Cortex	The thin layer of GRAY MATTER on the surface of the CEREBRAL HEMISPHERES that develops from the TELENCEPHALON and folds into gyri and sulci. It reaches its highest development in humans and is responsible for intellectual faculties and higher mental functions.	Allocortex,Archipallium,Cortex Cerebri,Cortical Plate,Paleocortex,Periallocortex,Allocortices,Archipalliums,Cerebral Cortices,Cortex Cerebrus,Cortex, Cerebral,Cortical Plates,Paleocortices,Periallocortices,Plate, Cortical
D003214	Conditioning, Classical	Learning that takes place when a conditioned stimulus is paired with an unconditioned stimulus.	Reflex, Conditioned,Classical Conditioning,Classical Conditionings,Conditioned Reflex,Conditionings, Classical