Brain , personality, environment and aggression

brain scans

FOR BOYS AT RISK OF PSYCHOPATHY, LAUGHTER ISN’T SO CONTAGIOUS

According to a new study, boys who show behaviors consistent with psychopathic traits report they did not want to join in with laughter as much as their peers. Additionally, neuroimaging revealed reduced response to the sound of laughter in areas of the brain associated with emotional perception. READ MORE…

Gun Control – stop the killing of our children

Congress blocked Obama’s call for new gun laws after mass shootings …

http://www.politifact.com/truth-o…/congress-blocked-obama-call-gun-control-mass-shoot/

 Jan 6, 2017 – President Barack Obama sheds tears as he talks about the victims of the 2012 Sandy Hook Elementary School shooting during a press conference about his executive actions on federal gun control on Jan. 5, 2016, in Washington. (Getty Images). It was an issue over which President BarackObama openly …
Barack Obama sends forceful message about gun control after Florida shooting
The Boston Globe
22 hours ago

More for gun control and obama

List of Obama Gun Laws and Gun Control Measures – ThoughtCo

https://www.thoughtco.com › Humanities › Issues › U.S. Government

President Barack Obama’s record on gun control is a fairly weak one, even though he has was portrayed as the “most anti-gun president in American history” and did call for more regulations in the wake of the numerous mass shootings that occurred during his two terms in office. “We do not have to accept this carnage as …

Florida Shooting: Barack Obama Calls For Gun Control | Time

time.com › Politics › Florida shooting

22 hours ago – Barack Obama Calls for ‘Long Overdue’ Gun Control After Florida School Shooting. … Former President Barack Obama took to Twitter Thursday, not only to offer his sympathy for the victims of Wednesday’s school shooting in Florida, but to call for stronger gun control measures …

Trump Signs Bill Revoking Obama-Era Gun Checks for People With …

Feb 28, 2017 – President Donald Trump quietly signed a bill into law Tuesday rolling back an Obama-era regulation that made it harder for people with mental illnesses to purchase a gun. The rule, which was finalized in December, added people receiving Social Security checks for mental illnesses and people deemed …

Barack Obama sends forceful message about gun control after Florida …

23 hours ago – Former president Barack Obama sent a forceful message out on social media Thursday, saying he grieves with Florida while also pressing for tighter gun control. “We are grieving with Parkland. But we are not powerless,” the former president wrote on Twitter Thursday afternoon. Obamasaid “caring for our …

Obama executive action: New gun control orders – CNNPolitics

Jan 5, 2016 – President Barack Obama grew emotional Tuesday as he made a passionate call for a national “sense of urgency” to limit gun violence.

Obama calls for ‘common-sense gun safety laws’ – CNNPolitics

17 hours ago – In the wake of the Florida high school shooting, former President Barack Obama is calling for legislative action on gun control, saying it’s “long overdue.”

Why restrict ‘good’ gun owners, resident asks President Obama at …

Jun 2, 2016 – Uploaded by PBS NewsHour

When asked why he wants to restrict gun access for all owners, rather than just bad actors, President Barack …

Donald Trump Revoked Obama-Era Gun Checks For Mentally Ill Law …

fortune.com › Briefing › Donald Trump

19 hours ago – President Donald Trump’s tweet Thursday highlighting the mental illness of the man charged in the deadly mass shooting at a Florida high school has angered gun control advocates who point to an Obama-era gun checks regulation he repealed last year. “So many signs that the Florida shooter was …

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HARMFUL EFFECTS OF STRESS ON THE BRAIN AND PROMISING APPROACHES FOR RELIEF

 

Aggression in alcoholic brain

The link between alcohol and aggression is well known. What’s not so clear is just why heavy drinkers get belligerent. What is it about the brain-on-alcohol that makes fighting seem like a good idea “and do all intoxicated people get more aggressive” or “does it depend on the circumstances”? New research by University of Kentucky psychologist Peter Giancola and Michelle Corman addresses these questions.

One theory about alcohol and aggression is that drinking impairs the part of the brain involved in allocating our limited mental resources — specifically attention and working memory. When we can only focus on a fraction of what’s going on around us, the theory holds, drunks narrow their social vision, concentrating myopically on provocative cues and ignoring things that might have a calming or inhibiting effect.

The research tested this idea on a group of young Kentucky men. Some of the men drank three to four cocktails before the experiment, while others drank no alcohol. All group members then competed in a stressful game that required very quick responses. Every time they lost a round, they received a shock varying in intensity. When they won a round they gave their opponent a shock. The idea was to see how alcohol affected the men’s belligerence, as measured by the kinds of shocks they chose to hand out.

In addition, Giancola and Corman also deliberately manipulated some of the volunteers’ cognitive powers. They asked some of the drinkers to simultaneously perform a difficult memory task. The idea was to see if they could distract those who were “under the influence” from their “hostile” situation. If they could tax their limited powers of concentration, perhaps they wouldn’t process the fact that they were recieving shocks.

The results confirmed the researchers predictions: The drinkers who had nothing to distract them, exhibited aggression towards their adversaries. However, the drinkers whose attention was focused elsewhere were actually less aggressive than the non-drinkers. The researchers comment that although this seems counterintuitive at first, it’s really not: the non drinkers were cognitively intact, so they would naturally attend to both provocations and distractions in the room, resulting in some low level of aggression.

It appears that alcohol has the potential to both increase and decrease aggression, depending on where’s one’s attention is focused. The psychologists speculate that working memory is crucial not only to barroom behavior, but to all social behaviour, because it provides the capacity for self-reflection and strategic planning. Activating working memory with salient, non-hostile, and health-promoting thoughts, in effect reduces the “cognitive space” available for inclinations towards violence.

Source: Alcohol and Aggression: A Test of the Attention-Allocation Model. Psychological Science Volume 18 Issue 7 Page 649-655, July 2007

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Adding volume to their claim is the new study “Subjective aggression during alcohol and cannabis intoxication before and after aggression exposure” just published in the journal Psychopharmacology.

“The results in the present study support the hypothesis that acute alcohol intoxication increases feelings of aggression and that acute cannabis intoxication reduces feelings of aggression following aggression exposure,” researchers concluded after extensive human trials.

In the study researchers gave two groups either a placebo or what amounted to a Screwdriver (ethyl alcohol plus orange juice). They gave another group either a pot placebo or actual marijuana vapor from a Volcano Vaporizer bag filled with 13% THC bud.

Then researchers made the test subjects play a money game designed to stimulate aggression or “escape” responses.

“Alcohol increased the number of aggressive responses in the PSAP in the alcohol group, whereas cannabis reduced the number of aggressive responses in the cannabis group. … These findings are generally in line with previous studies that showed alcohol-induced aggression at higher doses. … The cannabis group received a moderate to high cannabis dose which diminished aggressive responses during intoxication, which is in line with previous findings.”

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