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Chrissy Le

The Rules of Attraction in the Game of Love | LiveScience - 0 views

www.livescience.com/ules-attraction-game-love.html

rules attraction game love symmetry

shared by Chrissy Le on 15 Mar 12 - No Cached
  • Symmetry equals sex
  • If every division were to go perfectly, the result would be a baby whose left and right sides are mirror images.
  • But nature doesn't work that way.
  • ...12 more annotations...
  • men with higher degrees of symmetry enjoy more sexual partners than men of lower symmetry.
  • Both men and women rated symmetrical members of the opposite sex as more attractive and in better health than their less symmetrical counterparts. The differences can be just a few percent—perceivable though not necessarily noticeable.
  • "It makes sense to use symmetry variation in mate choice," said evolutionary biologist Randy Thornhill of the University of New Mexico. "If you choose a perfectly symmetrical partner and reproduce with them, your offspring will have a better chance of being symmetric and able to deal with perturbations."
  • Psychologist Devendra Singh of the University of Texas studied people's waist-to-hip ratio (WHR).
  • Women with a WHR of 0.7—indicating a waist significantly narrower than the hips—are most desirable to men.
  • 0.8 to 1.0 WHR in men is attractive to women, although having broad shoulders is more of a turn-on.
  • Where fat is deposited on the body is determined by sex hormones; testosterone in men and estrogen in women. If a woman produces the proper amount and mixture of estrogen, then her WHR will naturally fall into the desired range. The same goes for a male's testosterone.
  • "The idea is that beauty is conveying information about health and fertility, and we admire that,
  • Men's faces are shaped by testosterone, which helps develop a larger lower face and jaw and a prominent brow.
  • Research reported last month found women both smell and look more attractive to men at certain times of the month.
  • The rules of attraction, it turns out, seem sometimes to play out in our subconscious.
  • A 2002 study found women prefer the scent of men with genes somewhat similar to their own over the scent of nearly genetically identical or totally dissimilar men.
Zach Fenlon

Reading, Writing, and Games Can Keep Aging Brains Healthy - 0 views

psychology.about.com/...-keep-aging-brains-healthy.htm

psychology play

shared by Zach Fenlon on 06 Apr 13 - No Cached
    • Zach Fenlon
      Zach Fenlon on 06 Apr 13
       
      I found this to be very interested because after my research, i was under the impression that reading and writing didn't contribute to the healthy brain as much as other kinds of play
  • Using brain imaging, researchers were able to look at how water molecules move through the brain. This movement can be affected by factors such as age, disease, and injury. "In healthy white matter tissue, water can't move as much in directions perpendicular to the nerve fibers,"
    • Zach Fenlon
      Zach Fenlon on 06 Apr 13
       
      I found this very interesting because in my research i never fully understood the physical aspect of play to the brain. Now i can combine my knowledge and truly understand how play makes a difference 
  • Participants in the study included 152 elderly adults who were part of a large-scale study on Alzheimer's disease risk factors.
  • ...2 more annotations...
  • They also underwent brain MRI scans. Participants who reported higher cognitive activity levels were found to have higher diffusion anisotropy values in the brain.
  • but this new research also suggests that such things can also help preserve the brain's structural integrity.
  • Zach Fenlon on 06 Apr 13
     
    This link was very interesting because in my project i focused mostly on play in childhood brain development, and not as much in adults. I think this link shows just another reason why play is so important, to adults specifically.
Julian Pendenza

BEATING THE ODDS - 1 views

perspect.siuc.edu/...gambling.html

psychology

shared by Julian Pendenza on 02 Mar 12 - No Cached
  • Every state except Utah and Hawai'i permits some form of gambling.
  • Not surprisingly, gambling losses have skyrocketed. Every year, American consumers blow more money on gambling than we spend on music, movies, professional sports, theme parks, and cruises combined, says Dixon—an estimated $68 billion in 2002, according to one source.
    • Julian Pendenza
      Julian Pendenza on 02 Mar 12
       
      Important fact
  • 1 percent
  • ...11 more annotations...
  • 3 percent in the last 20 years
  • they are hugely in debt...and their families are in a shambles.
    • Julian Pendenza
      Julian Pendenza on 02 Mar 12
       
      One of the main problems of gambling
  • the most common treatment option for the problem, recorded a success rate of only 8 percent after two years of treatment. Therapy can boost the success rate considerably, but many people still don't respond well or simply don't have access to it.
    • Julian Pendenza
      Julian Pendenza on 02 Mar 12
       
      This is a reason of why this is such a big problem in today society
  • First, he's set up a "casino room" in his lab. This room, equipped with a one-way mirror for observing subjects, has slot machines, a roulette wheel, a craps table, and a poker table. No money is used to play these games, only tokens, but the physical experience of gambling is otherwise the same. (Research subjects do sometimes get extra course credit or gift cards as incentives for participating.)
    • Julian Pendenza
      Julian Pendenza on 02 Mar 12
       
      Procedure for expierement
  • Impulsivity and the gambling environment.
  • • Immediate gratification.
  • Pathological gamblers "don't have rational discounting curves," says Dixon. "They would rather have smaller amounts of money immediately than more later.
  • Perceptions of winning and losing.
  • • Irrational beliefs
  • The illusion of control
  • The fact that money isn't the only motivation for gambling is something that Dixon and his students know from the Gambling Intervention Program, which he began at SIUC in early 2005. This free eight-week program, closely modeled after a program developed by psychologist Nancy Petry at the University of Connecticut School of Medicine, is tailored to the individual.
    • Julian Pendenza
      Julian Pendenza on 02 Mar 12
       
      justification
  • Julian Pendenza on 02 Mar 12
     
    Behaviour research and its relation with Gambling, written by Marilyn Davis. Based on the research done by a professor of behaviour analysis and therapy with SIUC's rehabilitation Institution. This is a credible site because it is a ''.edu'' site which means educational organization. There for its a site whose purpose is to educate. Also it is a site created for the Southern Illinois University.
Daryl Bambic

The teenage brain | Science News for Students - 1 views

www.sciencenewsforstudents.org/...teenage-brain

brain teenage

shared by Daryl Bambic on 13 Jan 17 - No Cached
  • dopamine.
  • Dopamine levels in general peak during adolescence.
  • increased activity in the ventral striatum
  • ...27 more annotations...
  • prefrontal cortex’s ability to boss the brain increases with age.
  • reward system can outmuscle the master planner.
  • adolescent brain specifically evolved to respond to rewards so teens would leave behind the protection provided by their parents and start exploring their environment — a necessary step toward the independence they will need in adulthood.
    • Daryl Bambic
      Daryl Bambic on 03 Feb 17
       
      Evolutionary reward...the teen phase of development is what has pushed us forward with the new discoveries
  • So that’s why you have parents to act as your prefrontal cortex,” Frank jokes. Then, all too often, he says, “you reach adolescence and you don’t listen to your parents anymore.”
  • brain acts as the sculptor and chops away excess synapses. Scientists refer to this process as synaptic pruning.
    • Daryl Bambic
      Daryl Bambic on 03 Feb 17
       
      Great image of pruning as sculpting
  • If you have ever thought that the choices teenagers make are all about exploring and pushing limits, you are on to something
  • necessary phase in teen development
  • exploratory period.
  • Even laboratory mice experience a similar phase during their development.
  • Young mice that explore most tend to live longest
  • magnetic resonance imaging (MRI) scanner. The scanner relies on a powerful magnet and radio waves to create detailed images of the brains
  • Teens also can play games that require them to make choices,
  • observing and measuring which parts of the teens’ brains are most active
  • During the risk-taking and rewards-based tests, one region deep inside the brain shows more activity in adolescents than it does in children or adults, Crone says. This region, known as the ventral striatum, is often referred to as the “reward center”
  • Adolescents are particularly sensitive and responsive to influence by friends, desires and emotions, researchers say. It’s one of the hallmarks of this stage in life.
  • eel good” response helps explain why they often give in to impulsive desires.
  • to be shouting louder” between the ages of 13 and 17 than at any other time during human development.
  • prefrontal cortex, it’s the brain’s master planner.
  • brain is locked in a tug-of-war between the logical pull of the prefrontal cortex and the impulsive pull of the ventral striatum.
  • toward years of serious risk-taking
  • prefrontal cortex seems to lag in developing. It turns out this delay serves an important evolutionary function,
  • So it’s important that the master planner not be too rigid or restrictive during adolescence. Instead, it stays open to learning.
  • One of the processes involves axons, or fibers that connect nerve cells. From infancy, these fibers allow one nerve cell to talk to another. Throughout the teen years, fatty tissue starts to insulate the axons from interfering signals — it is a bit like the plastic that coats electrical cables.
  • In axons, the insulating tissue allows information to zip back and forth between brain cells much more quickly. It also helps build networks that link the prefrontal cortex with other brain regions, allowing them to work together more efficiently.
  • The second key process involves synapses. A synapse is like a dock between nerve cells. Nerve cells communicate by transmitting chemical and electrical signals. Those signals move through the synapses.
  • brain starts discarding many of these connections
  • So the brain strengthens the synapses it really needs and eliminates those that either slow things down or aren’t useful.
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