Showing posts with label prefrontal cortex. Show all posts
Showing posts with label prefrontal cortex. Show all posts

Wednesday, July 30, 2014

Teenage Boys - Helping an Endangered Species

I'm not convinced that teen boys are any less capable of hearing, listening, and responding to their parents than their sisters, but that is in part the argument Steven Stosny is making in this entry on his Psychology Today blog, Anger in the Age of Entitlement

Teenage Boys

Helping an Endangered Species

Published on July 26, 2014 by Steven Stosny, Ph.D. in Anger in the Age of Entitlement

In my clinical experience, the biggest complaint I hear from parents of teenage boys is that they are angry.

Teenage girls get angry, too, of course, but they tend to be more amenable to processing emotions and talking them through, which at least gives parents a little more leverage in dealing with them. The testosterone surges that boys experience blunts fear and disinhibits impulses, making them more susceptible to dangerous behaviors that both invoke and result from anger.

Teenage boys need a lot of structure. Both parents need to know where he is and what he’s doing at all times. Don’t fall into the “You don’t trust me,” trap. The issue isn’t trust but a realistic assessment of the dangerous world that adolescents must negotiate with limited pre-frontal cortex development. Before 18, a child does not have sufficient articulation in the judgment and regulatory areas of the brain to be able to see possible consequences of behavior under the stress of powerful impulses. It’s a dangerous combination, even when substances are not at all involved – increased impulsivity with diminished regulatory capacity.

Compassionate parents focus on the long-term well-being of the child, rather than the momentary ego boost of feeling “trusted.” The trick is getting them out of the defensive and into the improve mode of the brain. A good parental rejoinder to “You don’t trust me,” is, “I don’t trust myself enough to know that you will be safe and well without knowing where you are and what you’re doing. So what can you do so that you will have some freedom without me having to worry so much?”

In particular angry teenagers need to learn that:
  • They are part of a family and community which require some emotional investment – in small ways helping the family (chores) and occasional volunteer work in the community
  • Respect for other people’s rights and property
  • Money is a resource that must be managed responsibly.
In general, boys do not auditory-process as well as girls, even when they're not angry. (They hear almost as well, but don’t interpret the meaning of the spoken word as efficiently, not without other sensory modalities engaged.) If you want to give your son instructions or say anything important:
  • Make eye contact and try to touch him while you speak (two or three sensory modalities work better than one)
  • If detail is important, ask him to repeat what you said
  • Use short sentences and give him a chance to respond before going on (never lecture).
It’s easy for boys to get into the habit of automatically tuning out familiar voices, a habit that will cause them serious problems in future close relationships.Habits are much easier to prevent than to alter.

Responsibility

The world is cruel to the irresponsible.

Kids are not naturally responsible –parents or painful circumstances must teach them. Responsibility can be learned by modeling – responsible parents enjoy a better chance of having responsible children – but it also must be taught deliberately. Children can learn responsibility relatively painlessly up to about 13. After that, the life lessons that teach responsibility – mostly in the form of social sanctions and punishments - become more painful. Teaching responsibility to children is one of the most compassionate things parents can do for them.

The key to teaching responsibility is to make sure that your children understand this crucial fact: Power, privilege, and responsibility go together. When responsibility is high, so are the other two. And when it is low, so are the other two.

Teenagers, especially boys, feel powerless a lot of the time. They need to learn that they have the power to affect what happens to them by behaving responsibly. And they need to know in advance exactly how much power and privilege they will lose for specific irresponsible behaviors. That is really the way of the world. When you behave irresponsibly, say speeding or cheating on your taxes, you know in advance what the penalty will be.

Finally, children learn emotion regulation principally by modeling, not by what parents tell them. Like all mammals, the juveniles learn by watching the adults. There is a same sex bias to modelling – the boys watch the men more closely and the girls watch the women more closely, but they watch both parents to learn how to regulate emotions. Anger is an attribution of blame. If parents are blamers, children, especially high testosterone boys, are more likely to have anger problems. (Testosterone doesn't cause anger but it amplifies it considerably.) It's crucial for parents to model responsibility in all that they do, including owning their own mistakes, especially those that relate to disputes with their children.

For more help, see Compassionate Parenting

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Saturday, May 31, 2014

Men Who Watch Porn Have Less Grey Matter in Brain Regions Associated with Motivation and Executive Function


Watch porn and your brain may suffer from the intense stimulation of the reward system. One of the results of this can be a lower top-down modulation of prefrontal cortical areas (i.e., a loss of executive function and the ability to associate behaviors with outcomes). Another outcome is that exposure to porn imagery produced reduced activation in parts of brain associated with motivation - suggesting that porn (like other drugs) reduces the desire to do anything other than look at porn.

The researchers point out, rightly, that they cannot say that porn reduces grey matter - only that those who watch more porn has less grey matter. It may be the later that leads to the former.

By the way, the average porn consumption for the 64 men was 4 hours a week.

Below is a summary of the research from Science Alert, followed by the abstract of the full article (which is sequestered behind a pay wall).

Men who watch porn have less brain grey matter

Porn consumption has been linked to differences in the structure and function of male brains


Felicity Nelson | Saturday, 31 May 2014 

Image: PornHub

Men who watch porn have significantly less grey matter in their brains, a new study shows. MRI brain scans of 64 men between 21 and 45 years of age were taken while participants were shown images of porn and people exercising.

The participants were later requested to provide information about weekly porn consumption via a phone interview. Every person in the study volunteered to answer these questions, even though they were not told that this information would be needed before commencing. The men had a wide range of porn consumption averaging 4 hours a week.

Men with higher porn consumption had lower grey matter volumes. Interestingly, when men were shown sexually explicit material during the MRI scan, the region of the brain associated with motivation showed reduced activity.

"Our findings indicated that grey matter volume of the right caudate of the striatum is smaller with higher pornography use," researchers at the Max Planck Institute for Human Development in Berlin, Germany told ABC Science.

The study could not show that porn caused men's brains to lose grey matter. "Future studies should investigate the effects of pornography longitudinally or expose naive participants to pornography and investigate the causal effects over time", researchers told ABC Science.

This research was published this week in the journal JAMA Psychiatry.

Full Citation:
Kühn, S; Gallinat, J. (2014, May 28). Brain Structure and Functional Connectivity Associated With Pornography Consumption. JAMA Psychiatry. Online First. doi:10.1001/jamapsychiatry.2014.93


Brain Structure and Functional Connectivity Associated With Pornography Consumption

The Brain on Porn ONLINE FIRST

Simone Kühn, PhD; Jürgen Gallinat, PhD

ABSTRACT

Importance Since pornography appeared on the Internet, the accessibility, affordability, and anonymity of consuming visual sexual stimuli have increased and attracted millions of users. Based on the assumption that pornography consumption bears resemblance with reward-seeking behavior, novelty-seeking behavior, and addictive behavior, we hypothesized alterations of the frontostriatal network in frequent users.

Objective To determine whether frequent pornography consumption is associated with the frontostriatal network.

Design, Setting, and Participants Sixty-four healthy male adults with a broad range of pornography consumption at the Max Planck Institute for Human Development in Berlin, Germany, reported hours of pornography consumption per week. Pornography consumption was associated with neural structure, task-related activation, and functional resting-state connectivity.

Main Outcomes and Measures Gray matter volume of the brain was measured by voxel-based morphometry and resting state functional connectivity was measured on 3-T magnetic resonance imaging scans.

Results We found a significant negative association between reported pornography hours per week and gray matter volume in the right caudate (P < .001, corrected for multiple comparisons) as well as with functional activity during a sexual cue–reactivity paradigm in the left putamen (P< .001). Functional connectivity of the right caudate to the left dorsolateral prefrontal cortex was negatively associated with hours of pornography consumption.

Conclusions and Relevance The negative association of self-reported pornography consumption with the right striatum (caudate) volume, left striatum (putamen) activation during cue reactivity, and lower functional connectivity of the right caudate to the left dorsolateral prefrontal cortex could reflect change in neural plasticity as a consequence of an intense stimulation of the reward system, together with a lower top-down modulation of prefrontal cortical areas. Alternatively, it could be a precondition that makes pornography consumption more rewarding.