News tagged with impulsivity

Related topics: personality traits



Impulsivity

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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Weight gain linked with personality trait changes

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 created May 06, 2013 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Researchers identify how cells control calcium influx

(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 created May 09, 2013 | popularity 5 / 5 (4) | comments 0 | with audio podcast

The secret lives, and deaths, of neurons

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 created May 23, 2013 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Blocking protein expression delays onset of multiple sclerosis in mice, study says

(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 created May 10, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Mystery disease solved by gene experts

(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 created May 03, 2013 | popularity 4.5 / 5 (2) | comments 1 | with audio podcast

Turning Alzheimer's fuzzy signals into high definition

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 created May 07, 2013 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast