impulse


Also found in: Dictionary, Thesaurus, Legal, Acronyms, Idioms, Encyclopedia, Wikipedia.

impulse

 [im´puls]
1. a sudden pushing force.
2. a sudden uncontrollable determination to act.
cardiac impulse a heartbeat palpated over the left side of the chest at the apex of the heart. See also point of maximal impulse.
impulse control disorders a group of mental disorders characterized by repeated failure to resist an impulse to perform some act harmful to oneself or to others. In spite of the act's being socially unacceptable or inconsistent with the rest of the person's personality or lifestyle, he or she feels pleasure or emotional release upon doing it. Disorders in this category include intermittent explosive disorder, kleptomania, pathological gambling, pyromania, and trichotillomania.
nerve impulse the electrochemical process propagated along nerve fibers.

im·pulse

(im'pŭls),
1. A sudden pushing or driving force.
2. A sudden, often unreasoning, determination to perform some act.
3. The action potential of a nerve fiber.
[L. im-pello, pp. -pulsus, to push against, impel (inp-)]

impulse

/im·pulse/ (im´puls)
1. a sudden pushing force.
2. a sudden uncontrollable determination to act.

cardiac impulse  movement of the chest wall caused by the heart beat.
ectopic impulse 
1. the impulse that causes an ectopic beat.
2. a pathologic nerve impulse that begins in the middle of an axon and proceeds simultaneously towards the cell body and the periphery.
nerve impulse  the electrochemical process propagated along nerve fibers.

impulse

(ĭm′pŭls′)
n.
Physiology The electrochemical transmission of a signal along a nerve fiber that produces an excitatory or inhibitory response at a target tissue, such as a muscle or another nerve.

impulse

[im′puls]
Etymology: L, impellere, to drive
1 (in psychology) a sudden irresistible, often irrational inclination, urge, desire, or action resulting from a particular feeling or mental state.
2 also called nerve impulse, neural impulse, (in physiology) the electrochemical process involved in neural transmission. impulsive, adj.

impulse

Cardiac pacing An electrical stimulus delivered by a pacemaker Psychiatry A psychic striving; an instinctive urge

im·pulse

(im'pŭls)
1. A sudden pushing or driving force.
2. A sudden, often unreasoning, determination to perform some act.
3. The action potential of a nerve fiber.

impulse

change in momentum produced by a force. angular impulse moment applied to a rotating body or object multiplied by the duration of the application (newtons×metres×seconds, N.m.s). linear impulse force applied to a translating body or object multiplied by duration of the application (newtons×seconds, N.s).

impulse

nerve action potential

impulse,

n chiropractic technique characterized by a short, quick thrust.

im·pulse

(im'pŭls)
1. A sudden pushing or driving force.
2. A sudden, often unreasoning, determination to perform some act.
[L. im-pello, pp. -pulsus, to push against, impel (inp-)]

impulse,

n a surge of electric current for a short time span; e.g., in a 60-cycle AC current, there are 120 impulses per second. See also impression, maxillary.
impulse, muscle,
n a wave of excitation along a muscle fiber initiated at the neuromuscular endplate; accompanied by chemical and electrical changes at the surface of the muscle fiber and by activation of the contractile elements of the muscle fiber; detectable electronically (electromyographically); and followed by a transient refractory period.
impulse, nerve,
n a wave of excitation along a nerve fiber initiated by a stimulus; accompanied by chemical and electrical changes at the surface of the nerve fiber and followed by a transient refractory period during which further stimulation has no effect.

impulse

1. a sudden pushing force.
2. a sudden uncontrollable act.
3. a nerve impulse.

cardiac impulse
movement of the chest wall caused by the heartbeat. Called also apex beat.
nerve impulse
the electrochemical process propagated along nerve fibers.

Patient discussion about impulse

Q. Daughter's impulsivity is reduced to a great extent from those days when she used to be without medicines. My daughter was very impulsive before taking her medicines. Her impulsivity is reduced to a great extent from those days when she used to be without medicines and had a very high impulsive behavior. Now I have asked the doctor to take off the medicines as she is going well. But the doctor said that he cannot stop the medicines suddenly as it will have adverse effects in my daughter. What may be the reason? My daughter is well without medicines. This is causing me great confusion.

A. I certainly agree with goodday222. Your daughter's impulsive behavior may not be displayed because she is continuing to take the meds to control it. I do not think the meds your daughter is taking would fix the impulsive behavior.

From my experience, if you want your daughter to eliminate the impulsive behavior, you should make sure she starts participating in some regular physical activity. Running or swimming in a school program would be best, but soccer, basketball, or volleyball would also be good. Dance classes would also help (ballet, tap, modern, or jazz). I'm not suggesting a few times per month. I'm suggesting an intensive, lifestyle changing athletic program that she commits to for the next few years.

If she can do this kind of activity, then when you stop the meds for the summer, you will find she is growing up more appropriately and her impulsive behavior is reduced.

Rodger Bailey, MS

More discussions about impulse
References in periodicals archive ?
To take a closer look at the impulse category and to inspire you to discover even more ways to take advantage of impulse opportunities, Hardware Retailing reached out to retailers across North America and asked them to share the impulse tactics they use in their operations.
While the completion of the round-the-world trip would be a significant achievement in the field of solar power implementation in technology to reduce dependence on conventional fuel going into the future, there have been limitations that Solar Impulse 2 has faced.
In many ways, Solar Impulse is a flying laboratory for new and existing lightweight technologies and other materials that can help to achieve breakthrough results in energy efficiency," according to Claude Michel, Solvay's Solar Impulse project manager.
Social influence, another important situational factor influencing purchase behavior, refers to the interactive social influence of other people on impulse buying, and has been utilized to examine numerous consumer behaviors and special psychologies (Argo, Dahl, & Manchanda, 2005).
The Solar Impulse team will have a two-day long layover at Mandalay before flying further to Chongqing in China in its fifth leg.
This process is followed by impulsive reaction and hence it is called impulse buying or unplanned purchase [6].
We might have to flip a coin to decide who is flying first," joked Andre Borschberg, Solar Impulse co-founder and CEO.
We performed measurements of impulse noise that originated from electrical appliances and affected the telephone lines.
With 8 world records for Solar Impulse 1, the first solar aircraft capable of flying during the night, crossing two continents and flying over the United States, we have shown that clean technologies and renewable energies can accomplish the impossible," said a delighted Bertrand Piccard, founder and Chairman of Solar Impulse.
Pilots Andre Borschberg and Bertrand Piccard are slated to reveal a new solar-powered airplane, dubbed Solar Impulse 2, in a ceremony on April 9.
However, impulse duration has not been investigated by our research group.
Near the end of this phase, the sinoatrial node emits an electric impulse.