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Topic: Limbic system

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In the News (Sun 21 Jul 19)

  Chapter 8
Limbic system - the physiology of emotion, the visceral activity, the reception of olfactory impulses (whence rhinencephalic system).
The zone of the limbic system referred to as hippocampus ensures contact or loss of contact with the external world; associates characteristics of various signal sources and sends them to the reward or penalty areas of the hypothalamus; is involved in motivation.
The limbic system ensures the survival of the individual and of the species and determines adequate behavior to this purpose.
www.racai.ro /books/doe/chap8-6.html   (974 words)

 [No title]
Early involvement of the limbic system and temporal lobes is characteristic of herpes simplex encephalitis.
The brain is grossly malformed with a monoventricle, fused thalami, and absent interhemispheric fissure, falx, septum pellucidum, and corpus callosum.
All 3 arcs of the limbic system are affected, and the septal nuclei and hypothalamus are often hypoplastic.
spinwarp.ucsd.edu /NeuroWeb/Text/br-800epi.htm   (2797 words)

The limbic system is a group of brain structures that are involved in various emotions such as aggression, fear, pleasure and also in the formation of memory.
The limbic system is among the oldest parts of the brain in evolutionary terms: it can be found in fish, amphibians, reptiles and mammals.
The limbic system is tightly connected to the prefrontal cortex.
brainmeta.com /limbic.php   (358 words)

The limbic system, interposed between the hypothalamus and the neocortex, mediates the accompanying emotions and is importantly involved in memory.
Although the limbic system was originally thought to be primarily associated with the olfactory system (e.g., Broca), the main functions appear to be non-olfactory in nature.
Structures generally included in the limbic system are: the cingulate and parahippocampal gyri, the hippocampal formation, the septal areas and at least portions of the amygdala.
www2.umdnj.edu /~paneuweb/limbic.htm   (902 words)

 HyperBrain Syllabus Chapter 14
Study the organization of the limbic system by examining the input and output connections of its cortical and subcortical components.
The limbic system is the ring of cerebral cortex on the medial surface of the hemisphere that encircles the diencephalon.
Historically, the limbic system was considered a cortical system devoted to olfaction, which is the reason for its other name, rhinencephalon.
www-medlib.med.utah.edu /kw/hyperbrain/syllabus/syllabus14.html   (1503 words)

 Paul MacLean's triune brain hypothesis
The old mammalian brain residing in the limbic system is concerned with emotions and instincts, feeding, fighting, fleeing, and sexual behaviour.
MacLean claims to have found in the Limbic system a physical basis for the dogmatic and paranoid tendency, the biological basis for the tendency of thinking to be subordinate feeling, to rationalize desires.
Limbic System: The Center of Emotions - Introduction: The three units of the human Brain - Júlio Rocha do Amaral, MD and Jorge Martins de Oliveira, MD, PhD - overview and expansion upon of the MacLean theory.
www.kheper.net /topics/intelligence/MacLean.htm   (1330 words)

 Anatomy of the Brain
The image on the left is the outside of the brain, viewed from the side, showing the major lobes (frontal, parietal, temporal and occipital) and the brain stem structures (pons, medulla oblongata, and cerebellum).
The limbic system consists of a number of structures, including the fornix, hippocampus, cingulate gyrus, amygdala, the parahippocampal gyrus and parts of the thalamus.The hippocampus is one of the first areas affected by Alzheimer's disease.
Limbic system — a group of interconnected structures that mediate emotions, learning and memory.
www.ahaf.org /alzdis/about/AnatomyBrain.htm   (327 words)

 The Nervous System II
A distinction is made between two subdivisions: the central nervous system (CNS), which consists of the brain and spinal cord, and the peripheral nervous system (PNS), that part of the nervous system outside the CNS which consists mainly of the nerves that extend from the CNS.
The Spanish neurophysiologist DEGADO planted electrodes into a specific part of the limbic system of a Spanish fighting bull and fitted it with a receiver so that when a signal was sent by a transmitter a current would flow through one of the electrodes and stimulate the cells concerned.
Furthermore, the limbic system influences the hormonal system by means of the hypophysis (pituitary gland), a small gland attached to the base of the brain.
www.drugtext.org /sub/nervous2.html   (1637 words)

 The Biggest Ideas - Your Emotions
This capacity of the limbic system to keep building files may be why we lose data but gain wisdom as we age.
We are not aware of the limbic system as it collates its emotional memories and reaches conclusions.
The resonance between the mother’s and baby’s limbic systems begins in the womb and continues to deepen after birth.
www.thebiggestideas.com /cgi-bin/viewps.cgi?your_emotionsps.txt   (1499 words)

 Integrating the body's four brains
For millions of years prior to the upstart neocortex coming along, the regulation of the body’s systems was successfully carried out by the triumvirate of the enteric nervous system, reptilian brain, and limbic brain.
When we talk about the interaction of nervous systems among mammals, we mean that the nervous systems of two people in relationship very definitely communicate with, inform, and change each other.
We increase awareness of and responsiveness to the communication of the enteric nervous system and the reptilian and limbic brains.
www.seishindo.org /articles/four-brains.html   (2251 words)

 Limbic System   (Site not responding. Last check: 2007-10-03)
These structures are known as the Limbic system, and are a set of subcortical structures that form a border (or limbus) around the brain stem.
Because the size of the limbic system is relatively constant in size across mammalian species, in contrast to the cortex which varies greatly in size, he concluded that the limbic system control primitive functions that all mammals share in common.
Although one can easily speculate about a relationship between the limbic system and autistic behaviors, we should be conservative, because much of what we know comes from animal models in which the parts of the limbic system are damaged artificially.
nanonline.org /nandistance/nanneuro2/modules/limbic/limbic.html   (3349 words)

 Endocrine System
The endocrine system shares with the nervous system a role for control and coordination throughout the body.
The nervous system is mostly thought of as dealing with very short term control (on a time scale of milliseconds to seconds), while the endocrine system, through hormones, may exert relatively short term (seconds to minutes) or long term (days to weeks) control.
The endocrine system is important in the development and maintenance of the nervous system.
departments.weber.edu /CHFam/2570/Endocrine.html   (1470 words)

 Mind Over Matter Teacher's Guide - Introduction and Background
The limbic system structures are involved in many of our emotions and motivations, particularly those that are related to survival, such as fear, anger, and emotions related to sexual behavior.
The limbic system is also involved in feelings of pleasure that are related to our survival, such as those experienced from eating and sex.
So, the pleasure circuit, which is known as the mesolimbic dopamine system, spans the survival-oriented brainstem, the emotional limbic system, and the frontal cerebral cortex.
www.nida.nih.gov /MOM/TG/momtg-introbg.html   (1824 words)

 How and Why did we do this?
The ultimate goal of the project was to produce a holographic representation of the human limbic system for the Image and Meaning conference at MIT in June 2001.
Sketches of the limbic system are not rare, in fact, you can find one in almost any anatomical textbook produced for introductory psychology to advanced neuroanatomy.
The results were promising, but they resembled more one of the early sketches of the limbic system which were intended to show only the basic shape and approximate relationship between the limbic structures, and not really appropriate for this project.
members.cox.net /limbicsystem/How/how.htm   (1816 words)

 Limbic System
The olfactory system actually begins in the roof of the nasal cavity.
However, the sense of smell is heavily interconnected with all parts of the limbic system.
The olfactory system disobeys a general rule of sensory systems - it does not have to pass through thalamus before reaching cortex.
thalamus.wustl.edu /course/limbic.html   (1726 words)

 The Limbic System: The Seat of Consciousness in the Human Brain   (Site not responding. Last check: 2007-10-03)
The center of emotions in the brain can be found in the limbic system where the vast panoply of emotions is regulated through the release of excitatory and inhibitory neurotransmitters: Pleasure may be linked with chemical signals produced by the release of noradrenalin, and pain is associated with many neurotransmitters.
In response to a variety of stimuli, emotions arise in the limbic system, travelling along neural pathways to the frontal lobes of the cortex, where feelings are monitored and interpreted.
Your inner voice and limbic system are cyclic, in combination with the rest of the systems of your brain, largely your memory, a near-constant monologue is upheld.
www.vexen.co.uk /life/limbic_system.html   (1239 words)

 Limbic system - Wikipedia, the free encyclopedia
The limbic system (Latin limbus: "border" or "edge") includes the structures in the human brain involved in emotion, motivation, and emotional association with memory.
Recent studies of the limbic system of tetrapods have made data available that challenge some of the long-held tenets of forebrain evolution.
The common ancestors of reptiles and mammals had a well-developed limbic system in which the basic subdivisions and connections of the amygdalar nuclei were established.
en.wikipedia.org /wiki/Limbic_system   (658 words)

 Medical Dictionary: Limbic system - WrongDiagnosis.com
Limbic system: a system of functionally related neural structures in the brain that are involved in emotional behavior
Limbic system : group of brain structures associated with olfaction but of greater importance in other activities, such as autonomic functions and aspects of emotion and behavior.
Limbic system : A set of forebrain structures common to all mammals that is defined functionally and anatomically.
www.wrongdiagnosis.com /medical/limbic_system.htm   (319 words)

 The Limbic System   (Site not responding. Last check: 2007-10-03)
The limbic system of the brain is also known as the "primitive" or old brain.
The limbic system is also responsible for the expression of instinctive behavior, motivation and drives.
The cingulate gyrus connects the limbic system to the cerebral cortex and regulates such social behaviors as parental care.
www.womanspiritrising.nu /Resources/limbic.htm   (364 words)

Elucidation of the processes underlying the development of the limbic system may provide critical insights into the adaptive processes associated with addiction and provide insights into mechanisms that might underlie increased vulnerability to addiction.
In the past, vertebrate model systems (such as chick, frog, mouse, and zebrafish) and invertebrate systems (such as Drosophila and C. Elegans) have provided insights into mechanisms of development and are also likely to provide new information about the formation and specification of the limbic system.
This PA, Role of Limbic System and Brain Ontogeny in Drug Abuse, is related to the priority areas of tobacco, alcohol and other drugs, and maternal and infant health.
grants.nih.gov /grants/guide/pa-files/PA-98-032.html   (1903 words)

 Limbic System: The Center of Emotions (via CobWeb/3.1 planetlab2.cs.umd.edu)   (Site not responding. Last check: 2007-10-03)
This system commands certain behaviors that are necessary for the survival of all mammals.
This system is also responsible for some aspects of personal identity and for important functions related to memory.
It does not belong to the traditional limbic circuit, but its intense bi-directional connections with thalamus, amygdala and other subcortical structures, account for the important role it plays in the genesis and, specially, in the expression of affective states.
www.healing-arts.org.cob-web.org:8888 /n-r-limbic.htm   (3514 words)

This ring and its connections is often called the limbic system, which is especially important in motivation and emotion (see asgn4n, o, and z).
The limbic system is does much of its control of behavior through the hypothalamus, at the top end of the brain stem.
For example, anatomical data show that the limbic system is strongly connected to the hypothalamus, which serves as the main output of the limbic system.
www.indiana.edu /~p1013447/dictionary/limbic.htm   (958 words)

 Drugs and the Limbic System   (Site not responding. Last check: 2007-10-03)
The limbic system is a "collective term denoting a heterogeneous array of brain structures at or near the edge of the medial wall of the cerebral hemisphere, in a particular the hippocampus, amygdala, and fornicate gyrus."
These neurons then connect to a variety of places within the limbic system, but the important connection is to the nucleus accumbens in the basal ganglia.
The basal ganglia are a large, complex set of structures within the limbic system that function in generating movements, some cognitive functions, emotional and motivational activities.
www.udel.edu /chem/C465/senior/fall00/DrugAddiction/Parts.html   (239 words)

 limbic system
Phenylethanolamine N-methyltransferase-containing neurons in the limbic system of the young rat.
Limbic control of endocrine glands in aged rats.
Postnatal development of transmitter systems: sexual differentiation of the GABAergic system and effects of muscimol.
www.arclab.org /node_pages/258.html   (313 words)

In human beings, the limbic system grew in tandem with the cerebral cortex (Armstrong 1986).
The limbic system "plays a key role in the evolutionary survival and eventual success of hominids" (Eccles 1989:97).
The limbic system includes the amygdala, anterior thalamic nucleus, cingulate gyrus, fornix, hippocampus, hypothalamus, mammillary bodies, medial forebrain bundle, prefrontal lobes, septal nuclei, and other areas and pathways of the brain.
members.aol.com /nonverbal3/limbic.htm   (330 words)

ROLE OF LIMBIC SYSTEM AND BRAIN ONTOGENY IN DRUG ABUSE Release Date: October 19, 2001 PA NUMBER: PA-02-015 March 2, 2006 (NOT-OD-06-046) – Effective with the June 1, 2006 submission date, all R03, R21, R33 and R34 applications must be submitted through Grants.gov using the electronic SF424 (RandR) application.
Specific cortical and subcortical forebrain structures, often referred to as the limbic system, play a significant role in mediating emotional and motivated behavior as well as memory storage.
o The cellular and molecular mechanisms of stem cell and progenitor cell induction, proliferation, and phenotypic restriction in the midbrain, nucleus accumbens, striatum, prefrontal cortex and limbic regions of the brain.
grants.nih.gov /grants/guide/pa-files/PA-02-015.html   (2753 words)

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