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Tumors evolve rapidly in a childhood cancer, leaving fewer obvious tumor targets

An extensive genomic study of the childhood cancer neuroblastoma reinforces the challenges in treating the most aggressive forms of this disease. Contrary to expectations, the scientists found relatively few recurrent gene ...

Genetics created Jan 20, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Scientists identify genetic signatures for aggressive form of prostate cancer

Scientists have discovered two separate genetic 'signatures' for prostate cancer that appear to be able to predict the severity of the disease, leading to hopes that in future, accuracy of prognosis and treatment of the disease ...

Cancer created Oct 08, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Team finds biological indicator of aggressive, recurrent forms of prostate cancer

(Medical Xpress)—In a study to decipher clues about how prostate cancer cells grow and become more aggressive, Johns Hopkins urologists have found that reduction of a specific protein is correlated with the aggressiveness ...

Cancer created Aug 27, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Immune system uses heart channel to select powerful defenders

(Medical Xpress) -- When the body makes immune T cells, it relies on a molecular channel more commonly seen in nerves and heart muscles to ensure that the powerful T cells have the right mixture of aggressiveness ...

Immunology created Aug 16, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Hulk smash? Maybe not anymore: scientists block excess aggression in mice

Pathological rage can be blocked in mice, researchers have found, suggesting potential new treatments for severe aggression, a widespread trait characterized by sudden violence, explosive outbursts and hostile overreactions ...

Neuroscience created Jun 19, 2012 | popularity 3.8 / 5 (6) | comments 2 | with audio podcast

The path to personalized cancer treatment

In the largest study of its kind, researchers have profiled genetic changes in cancer with drug sensitivity in order to develop a personalised approach to cancer treatments. The study is published in Nature on Thursday 29 Mar ...

Cancer created Mar 28, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Breaking oncogene's hold on cancer cell provides new treatment direction

Just as people's bodies and minds can become addicted to substances such as drugs, caffeine, alcohol, their cancers can become addicted to certain genes that insure their continued growth and dominance.

Cancer created Dec 08, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

High-testosterone competitors more likely to choose red

Why do so many sports players and athletes choose to wear the color red when they compete? A new study to be published in Psychological Science, a journal of the Association for Psychological Science, suggests that it may ...

Psychology & Psychiatry created May 16, 2013 | popularity 5 / 5 (2) | comments 1 | with audio podcast

New prostate cancer test improves risk assessment

(Medical Xpress)—A new genomic test for prostate cancer can help predict whether men are more likely to harbor an aggressive form of the disease, according to a new UC San Francisco study. The test, which improves risk ...

Cancer created May 08, 2013 | popularity not rated yet | comments 0 | with audio podcast

Gene test may help guide prostate cancer treatment

A new genetic test to gauge the aggressiveness of prostate cancer may help tens of thousands of men each year decide whether they need to treat their cancer right away or can safely monitor it.

Genetics created May 08, 2013 | popularity not rated yet | comments 0

Making cancer less cancerous: Blocking a single gene renders tumors less aggressive

Researchers at Johns Hopkins have identified a gene that, when repressed in tumor cells, puts a halt to cell growth and a range of processes needed for tumors to enlarge and spread to distant sites. The researchers hope that ...

Cancer created May 02, 2013 | popularity 4.7 / 5 (10) | comments 0 | with audio podcast

Kids with brains that under-react to painful images

When children with conduct problems see images of others in pain, key parts of their brains don't react in the way they do in most people. This pattern of reduced brain activity upon witnessing pain may serve as a neurobiological ...

Psychology & Psychiatry created May 02, 2013 | popularity not rated yet | comments 0 | with audio podcast

Scientists assemble genetic playbook for acute leukemia

A team of researchers led by Washington University School of Medicine in St. Louis has identified virtually all of the major mutations that drive acute myeloid leukemia (AML), a fast-growing blood cancer ...

Cancer created May 01, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Infants' sweat response predicts aggressive behavior as toddlers

Infants who sweat less in response to scary situations at age 1 show more physical and verbal aggression at age 3, according to new research published in Psychological Science, a journal of the Association for Psychological Scienc ...

Psychology & Psychiatry created Apr 23, 2013 | popularity 5 / 5 (2) | comments 1 | with audio podcast

Fight control: Researchers link individual neurons to regulation of aggressive behavior in flies

(Medical Xpress)—Scientists have long pondered the roots of aggression—and ways to temper it. Now, new research is beginning to illuminate the cellular-level circuitry responsible for modulating aggression ...

Neuroscience created Apr 19, 2013 | popularity not rated yet | comments 0 | with audio podcast

Aggression

In psychology, as well as other social and behavioral sciences, aggression refers to behavior between members of the same species that is intended to cause pain or harm. Predatory or defensive behavior between members of different species is not normally considered "aggression." Aggression takes a variety of forms among humans and can be physical, mental, or verbal. Aggression should not be confused with assertiveness, although the terms are often used interchangeably among laypeople, e.g. an aggressive salesperson.

There are two broad categories of aggression. These include hostile, affective, or retaliatory aggression and instrumental, predatory, or goal-oriented aggression. Empirical research indicates that there is a critical difference between the two, both psychologically and physiologically. Some research indicates that people with tendencies toward affective aggression have lower IQs than those with tendencies toward predatory aggression. If only considering physical aggression, males tend to be more aggressive than females. One explanation for this difference is that females are physically weaker than men, and so need to resort to other means.

For more information about Aggression, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

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