FACTOID # 21: 15% of Army recruits from South Dakota are Native American, which is roughly the same percentage for female Army recruits in the state.
 
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Encyclopedia > Stimulation

--76.204.91.99 (talk) 20:56, 31 March 2008 (UTC)Stimulation is the action of various agents (stimuli) on muscles, nerves, or a sensory end organ, by which activity is evoked; especially, the nervous impulse produced by various agents on nerves, or a sensory end organ, by which the part connected with the nerve is thrown into a state of activity. Image File history File links Question_book-3. ... In physiology, a stimulus is a detectable change in the internal or external environment. ... For other uses of Muscles, see Muscles (disambiguation). ... For other uses, see Nerve (disambiguation). ... For other uses, see Impulse (disambiguation). ...


The word is also often used metaphorically. For example, an interesting or fun activity can be described as "stimulating," regardless of its physical effects on nerves.


It is also used in simulation technology to describe a synthetically-produced signal that triggers (stimulates) real equipment, see below.


Overview

< math > Insertformulahere < math > Insertformulahere--76.204.91.99 (talk) 20:56, 31 March 2008 (UTC)</math></math>Stimulation in general refers to how organisms perceive incoming stimuli. As such it is part of the stimulus-response mechanism. Simple organisms broadly react in three ways to stimulation: too little stimulation causes them to stagnate, too much to die from stress or inability to adapt, and a medium amount causes them to adapt and grow as they overcome it. Similar categories or effect are noted with psychological stress with people. Thus, stimulation may be described as how external events provoke a response by an individual in the attempt to cope. The stimulus-response model describes a statistical unit as making a quantitative response to a quantitative stimulus administered by the researcher. ... In medical terms, stress is the disruption of homeostasis through physical or psychological stimuli. ... A coping skill is a behavioral tool which may be used by individuals to offset or overcome adversity, disadvantage, or disability without correcting or eliminating the underlying condition. ...


Use in Simulators and Simulation Technology Stimulation describes a type of simulation whereby artificially-generated signals are fed to real equipment in order to Stimulate it to produce the result required for training, maintenance or for R&D. The real equipment can be radar, sonics, instruments and so on. In some cases the Stimulation equipment can be carried in the real platform or carriage vehicle (that is the Ship, AFV or Aircraft) and be used for so-called `embedded training' during its operation, by the generation of simulated scenarios which can be dealt with in a realistic manner by use of the normal controls and displays. In the overall definition of simulation, the alternative method is called `emulation' which is the simulation of equipment by entirely artificial means by physical and software modelling


Over-stimulation

Psychologically, it is possible to become habituated to a degree of stimulation, and then find it uncomfortable to have significantly more or less. Thus one can become used to an intense life, or television, and suffer withdrawal when they are removed, from lack of stimulation, and it is possible to also be unhappy and stressed due to additional abnormal stimulation. In psychology, habituation is an example of non-associative learning in which there is a progressive diminution of behavioral response probability with repetition of a stimulus. ... Withdrawal, also known as withdrawal syndrome, refers to the characteristic signs and symptoms that appear when a drug that causes physical dependence is regularly used for a long time and then suddenly discontinued or decreased in dosage. ...


It is hypothesized and commonly believed by some that psychological habituation to a high level of stimulation ("over-stimulation") can lead to psychological problems. For example, some food additives can result in children becoming prone to over-stimulation, and ADHD is, theoretically, a condition in which over-stimulation is a part. It is also hypothesized that long term over stimulation can result eventually in a phenomenon called "adrenal exhaustion" over time, but this is not medically accepted or proven at this time. DISCLAIMER Please remember that Wikipedia is offered for informational use only. ... Hypoadrenia is a term for a hypothesised condition of the adrenal glands. ...


What is sure is that ongoing, long term stimulation, can for some individuals prove harmful, and a more relaxed and less stimulated life may be beneficial. See also; sensory overload and burnout. Sensory overload (sometimes abbreviated to SO) is when one or more of the five senses are strained and it becomes difficult to focus on the task at hand. ... Burnout is a psychologica term for the experience of long-term exhaustion and diminished interest [depersonalization] or cynicism), usually in the work context. ...


See also

In physiology, a stimulus is a detectable change in the internal or external environment. ... Stimming is a behavior observed in people who have Aspergers syndrome or autism. ... The tone or style of this article or section may not be appropriate for Wikipedia. ... Hypoadrenia is a term for a hypothesised condition of the adrenal glands. ... In medical terms, stress is the disruption of homeostasis through physical or psychological stimuli. ... A cluttered environment with too many tasks can lead to stress. ... This article or section does not cite its references or sources. ...

  Results from FactBites:
 
stimulant - Encyclopedia.com (493 words)
stimulant any substance that causes an increase in activity in various parts of the nervous system or directly increases muscle activity.
A second class of stimulants that affect the medulla and spinal cord includes derivatives of niacinamide (nicotinic acid amide) and other chemically diverse compounds; they are sometimes used to speed the return to wakefulness after anesthesia or to counteract barbiturate poisoning.
Drugs that stimulate the parasympathetic portion of the autonomic nervous system, such as pilocarpine, physostigmine, and neostigmine, cause contracted pupils, salivation and sweating, slowed heartbeat, and lowered blood pressure.
Stimulant Medication and AD/HD (3025 words)
When we talk about the use of stimulant medications in psychiatry, we generally are referring to methylphenidate (Ritalin) amphetamine (Dexedrine, Adderall) methamphetamine (Desoxyn) and pemoline (Cylert.) The first two are by far the most commonly prescribed.
The stimulant medications increase the release or block the reabsorption of dopamine and norepinephrine, two brain neurotransmitters.
Some have used stimulant medications to energize individuals who are apathetic and lethargic due to a severe medical illness.
  More results at FactBites »

 
 

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