News tagged with impulsivity
(HealthDay)—We've all seen them: the surfers who race to the beach when a hurricane hits, the guy who decides to ride out the storm in his overmatched boat, the tornado chasers who fearlessly steer their ...
Psychology & Psychiatry 1 hour ago | not rated yet | 0
As the human body fine-tunes its neurological wiring, nerve cells often must fix a faulty connection by amputating an axon—the "business end" of the neuron that sends electrical impulses to tissues or other ...
Neuroscience May 23, 2013 | 5 / 5 (3) | 0 |
(Medical Xpress)—Blocking the expression of just one protein in the brain delays the onset of paralysis in mice with a form of multiple sclerosis, say researchers at the School of Medicine.
Medical research May 10, 2013 | 5 / 5 (2) | 0 |
(Medical Xpress)—When brain cells are overwhelmed by an influx of too many calcium molecules, they shut down the channels through which these molecules enter the cells. Until now, the "stop" signal mechanism that cells ...
Neuroscience May 09, 2013 | 5 / 5 (4) | 0 |
Scientists at the Virginia Tech Carilion Research Institute have discovered how the predominant class of Alzheimer's pharmaceuticals might sharpen the brain's performance.
Neuroscience May 07, 2013 | 4.5 / 5 (2) | 0 |
People who gain weight are more likely to give in to temptations but also are more thoughtful about their actions, according to a new study published in Psychological Science, a journal of the Association for Psychological Scienc ...
Psychology & Psychiatry May 06, 2013 | 5 / 5 (4) | 0 |
Double-amputee Jason Koger used to fly to visit a clinician when he wanted to adjust the grips on his bionic hands. Now, he's got an app instead. Koger this week demonstrated the i-limb ultra revolution, ...
Other May 03, 2013 | not rated yet | 0
(Medical Xpress)—A global team of researchers has identified the gene behind an Australian toddler's paediatric brain disorder in a discovery that is paving the way for the diagnosis and treatment of other ...
Genetics May 03, 2013 | 4.5 / 5 (2) | 1 |
Compulsive gamblers suffer from an optimism bias that modifies their subjective representation of probability and affects their decisions in situations involving high-risk monetary wagers. This is the conclusion drawn by ...
Psychology & Psychiatry Apr 30, 2013 | not rated yet | 0
Magnetic resonance imaging (MRI) measurements of atrophy in an important area of the brain are an accurate predictor of multiple sclerosis (MS), according to a new study published online in the journal Radiology. According to the ...
Neuroscience Apr 23, 2013 | not rated yet | 1
(Medical Xpress)—Monitoring heart rate patterns can help identify risk and treat people who are dependent on alcohol by predicting their craving levels, researchers at the University of Sydney have shown.
Addiction Apr 22, 2013 | not rated yet | 0
A new study by a Rhode Island Hospital researcher has found that traumatic brain injury (TBI) can significantly increase the odds of having major depression, personality impulsivity and post-traumatic stress disorder (PTSD) ...
Neuroscience Apr 08, 2013 | not rated yet | 0
(HealthDay)—Eugene King ran away from home at the age of 16, the start of a lifelong pattern of drug abuse, crime and incarceration.
Psychology & Psychiatry Apr 05, 2013 | not rated yet | 0
Why are audiences attracted to bloodshed, gore and violence? A recent study from researchers at the University of Augsburg, Germany and the University of Wisconsin-Madison found that people are more likely to watch movies ...
Psychology & Psychiatry Mar 28, 2013 | 5 / 5 (1) | 0
An international team of scientists, led by researchers at the University of California, San Diego School of Medicine, says a key protein in Schwann cells performs a critical, perhaps overarching, role in ...
Neuroscience Mar 27, 2013 | 3 / 5 (1) | 0 |
Impulsivity (or impulsiveness) is a personality trait characterized by the inclination of an individual to initiate behavior without adequate forethought as to the consequences of their actions, acting on the spur of the moment. Eysenck and Eysenck related impulsivity to risk-taking, lack of planning, and making up one's mind quickly. Impulsivity has been shown to be a major component of various neuropsychiatric disorders such as ADHD, substance abuse disorders and bipolar disorder. Impulsivity has been shown to have a genetic component and may be inheritable. Abnormal patterns of impulsivity may also be an acquired trait as a result of various neurodegenerative diseases, traumatic brain injury (TBI), hypoxic ischemic encephalopathy, intrauterine hypoxia, bacterial or viral infections or neurotoxicity as a result of chemical exposure. The orbitofrontal cortex and right inferior frontal gyrus have been shown to play a part in impulse control.
As a personality trait, impulsivity is part of normal behavior as it contributes to adaptive functioning. To do something and not be aware, especially for young children, is relatively common. Recent psychological research has suggested that there are various facets of impulsivity. Some researchers have proposed a 3-factor model according to impulsivity; attentional ("getting easily bored"), motor ("going into action") and cognitive ("inability to plan") factors. Recent theories have suggested five separate aspects of impulsivity:
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