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Neuron doctrine
Neuron doctrine The idea that nerve cells are independent biological units.
RELATED TERMS--------------------------------------
Nerve
Tissue that conveys sensation, temperature, position information to the brain.
SIMILAR TERMS--------------------------------------
Neural tube defect
Type of birth defect, such as spina bifida, that results from failure of the spinal cord or brain to develop normally in a fetus.
Neuralgia
Pain in distribution of nerve or nerves.
Neuralgic amyotrophy
See 'Brachial neuritis'.
Neuramate
Neuramate is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): meprobamate.
Neuritis
Inflammation of a nerve or nerves.
Neuro-electric acupuncture
(evidence-based acupuncture, physiologic acupuncture)|Subject of Beyond Yin and Yang|How Acupuncture Really Works (Warren H. Green, Inc., 1994), by George A. Ulett, M.D., Ph.D. Neuro-electric acupuncture is a nonvitalistic form of electroacupuncture.
Neuro-Linguistic Programming (NLP(TM), neurolinguistics)
Quasi-spiritual behavior-modification (or "performance psychology") technique whose crux is "modelling," or "NLP modelling"|imitating the behavior of high achievers. Richard Bandler and John Grinder initially formulated NLP in 1975, reputedly duplicating the "magical results" of several top communicators and therapists. (These included Milton H. Erickson, M.D., the originator of Ericksonian Hypnosis.) Advanced Neuro Dynamics, Inc., in Honolulu, Hawaii, has promoted a style of NLP that "recognizes the importance of the human spirit and its connection with the mind and body." Pure NLP(TM) is the brand of NLP promoted by The Society of Neuro-Linguistic Programming.
Neuro-oncologist
An physician who specializes in treating patients with brain tumors, and/or the consequences of cancer upon the nervous system. The physician may be a trained neurologist, oncologist or neurosurgeon.
Neuro-oncology
The branch of medicine concerned with the direct and indirect effects of neoplasms on the nervous system, neuromuscular junction, and muscle.
Neuro-ophthalmology
That branch of medicine concerned with the neurological aspects of the visual apparatus.
Neuro-otologist
Physician who specializes in ear and hearing problems affecting the acoustic nerve.
Neuroanatomy
The branch of neurology and anatomy that is concerned with nerve cells and the nervous system, including the brain.
Neurocardiogenic Syncope (Postural Orthostatic Tachycardia Syndrome (POTS), Dysautonomia)
Dysfunction of the autonomic nervous syndrome. Causes symptoms of fatigue, dizziness, increased heart rate, and other symptoms. See syncope.
Neuroectoderm
The region of the embryo that eventually develops into the nervous system.
Neurofibromatosis
An inherited disorder that causes dark spots on the skin and tumors of the skin, peripheral, optic and acoustic nerves.
Neuroglycopenic
Shortage of glucose in the nerve cells of the brain. Since the brain cells depends upon glucose as their main fuel, low blood sugars can quickly result in malfunction of the brain (with change in mental function, and possible loss of consciousness or seizures). In patients with Hypoglycemia Unawareness, where the patient may not recognize low sugar levels because other symptoms such as sweating, tremor, and rapid heart rate, are absent, the first symptoms are neuroglycopenic -- namely, loss of mental functioning.
Neurolite
Neurolite is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): technetium tc-99m bicisate kit.
Neurologic Oncology
The study and treatment of cancers of the brain and nervous system.
Neurological
The medical science that deals with the nervous system and disorders affecting it.
Neurologist
A physician who specializes in diagnosing and treating disorders of thenervous system, including the brain, spinal cord, nerves, and nerve centers.
Neurology
The branch of medicine that pertains to the nervous system.
Neuroma
A benign but sometimes painful tumor growing on a nerve.
Neuromuscular development
The development of the nervous and muscular systems.
Neuron
A cell specialized to conduct and generate electrical impulses and to carry information from one part of the brain to another.
Neurontin
Neurontin is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): gabapentin.
Neuropathologist
A pathologist who establishes the diagnosis in diseases of the nervous system by careful microscopic examination of the tissue.
Neuropathy
A disease of the nervous system. The three major forms in people with diabetes are peripheral neuropathy, autonomic neuropathy, and mononeuropathy. The most common form is peripheral neuropathy, which affects mainly the legs and feet.
Neuropsychiatric
A branch of health science combining neurology and psychiatry.
Neuropsychologist
A psychologist who specializes in ailments of the mind and mental processes caused by disease of the nervous system.
Neuroradiologist
A radiologist who specializes in the use of radioactive substances, x-rays and scanning devices for the diagnosis of diseases of the nervous system.
Neuroscience
The scientific study of the nervous system.
Neurosurgeon
Physician who specializes in surgery of the nervous system.
Neurotic disorder
A mental disorder in which the predominant disturbance is a distressing symptom or group of symptoms that one considers unacceptable and alien to one's personality. There is no marked loss of reality testing ; behavior does not actively violate gross social norms, although it may be quite disabling. The disturbance is relatively enduring or recurrent without treatment and is not limited to a mild transitory reaction to stress. There is no demonstrable organic etiology.
Neurotransmitter
Specialized chemical messenger (eg, acetylcholine, dopamine, norepinephrine, serotonin) that sends a message from one nerve cell to another. Most neurotransmitters play different roles throughout the body, many of which are not yet known.
Neurotransmitters
Chemical substances that carry impulses from one nerve cell to another; found in the space (synapse) that separates the transmitting neuron's terminal (axon) from the receiving neuron's terminal (dendrite).
PREVIOUS AND NEXT TERMS--------------------------------------
Newborn jaundice
The yellowing of a newborn's skin, usually beginning on the second or thirdday after birth and lasting a week to ten days. Caused by the immaturity ofthe newborn's systems, jaundice is common, with more than half of newbornshaving the disorder.
Niacin
One of the B vitamins, niacin is an essential vitamin that is especiallyimportant for digestion and appetite, as well as tissue and nerve cells.
Non-stress test
A test for abnormalities of the fetal heartbeat in which a monitor is used to listen to the fetus's heart while the mother is at rest. (In a stress test, the fetal heartbeat is monitored in response to uterine contractions.)
Norplant
Time-released birth control, administered through 6 tiny tubes that are implanted in a woman's upper arm. It remains effective for up 5 years.
Nasal hemiretina
That portion of the retina that lies medial to the fovea.
Neuron doctrine
Nonclassical receptive field
Classical receptive fields are plotted by spots of light or moving stimuli. If a cell responds consistently to that stimulus then the location of that stimulus is said to be within the cells classical receptive field. Activity outside that area can influence a cell's response to the original stimulus. Examples : Motion, Color.
Nucleus of the optic tract (NOT)
Receives input from directionally sensitive cells in the retina. Lesions produce deficits in tracking of moving stimuli.
Null sets
Sets of stimuli which all lead to the same activation of the individual photoreceptor and are thus indiscriminable for that photoreceptor
Nyquist limit
The highest resolvable frequency that can be unambiguously registered by an array of neural elements. A system that encodes spatial patterns at a seires of uniformly spaced sample points can exactly represent sine or cosine gratings of all spacial frequencies up to the Nyquist frequency.
Necropsy
Examination of a body after death.
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