Wednesday, September 30, 2015

In The Brain, Romantic Love Is Basically An Addiction by Ariella Mahoney

love-science.jpg

Love is often referred to as an “addiction”. Like any other addiction, there are many behavior patterns that have been evident since the 12th-century. Around the world, people are willing to live, die, or even kill for love. Lovers will often times become obsessed with their beloved. They will also have intense motivation and fixation on this person. They experience a distortment in reality, a change in their priorities as well as their daily habits. These changes are often to please or accommodate the person they love. This also comes with the willingness to sacrifice or even die for that person. This love can invoke a dependance on that person as well as separation anxiety and frustration attraction. In psychological studies, lovers were seen to exhibit craving, tolerance, withdrawal, and relapse, which are the four basic traits of addiction. After a break up, the  experiences were similar to those of drug withdrawal. This includes protest, crying, anxiety, insomnia, loss of appetite or binge eating. Lovers will also end up going to extremes to win back their lovers. If this is unsuccessful, certain triggers, (even long after the relationship), such as songs, people, events, places, or other cues associated with their past lover can cause a relapse of memories. Thus, adding love to the list of addictions.

How would you describe love?
Do you believe that this was a valid psychological study? Why or why not.

How do you believe this study helps us to understand the human mind?


Thursday, September 24, 2015

Paralyzed Man Can 'Feel' Again with Brain-Connected Prosthetic Hand by Cameron Rutledge



Prosthetic limbs have been around for hundreds of years, but just recently the Defense Advanced Research Projects Agency (DARPA) developed a prosthetic hand that allowed a paralyzed man to control the robotic limb with his mind and even feel what the prosthetic touches. The man (who had been paralyzed for more than a decade) had electrodes attached to his sensory cortex (the part of the brain used for identifying touching sensations) and his motor cortex (the part of the brain that controls body movements). Wires were then run to the prosthetic, connecting the man to the machine. Through this the man was able to use his thoughts to manipulate the prosthetic in the same way a hand would be used normally. Additionally he could sense when the hand was being touched by something, even when he was blindfolded. DARPA's program manager Justin Sanchez said that prosthetic limbs controlled by thoughts and that can feel "shows the potential for seamless bio-technological restoration of near-natural function".

Questions:
How essential do you think this technology is?
What do you think is the most important use of this technology (Medical, Manufacturing, Military)?
Should this be covered in insurance?
How do you think this may effect sports?


Tuesday, September 15, 2015

Baby Blue by Sara Delano

Baby Blue
When a baby is born they often have blue eyes; but why is that? The pigment known Melanin is what determines the color of our eyes, and when we are born our bodies have not finished producing this pigment. Blue eyes are caused by a lower amount of melanin; this means that the more melanin the greener, even more melanin means browns eyes.


Why do some people produce more Melanin than others?
How does Melanin change the color of an eye?

Do more people have brown, green, or blue eyes?



DNA bunny by Joe West



DNA has been the most fascinating part of genetics in organisms. But now,
scientists are Building tiny figures with DNA. Due to the new technology scientists
have available, they have used 3D printers to craft DNA into almost anything you
could imagine. This new material of DNA is called a nanostructure which forms
DNA into any object from 2D sheets to even more complex models like stars and
smiley faces. But before taking the artwork to the printer they first have to design it
from scratch. To develop a design they use the art of DNA origami. For example,to
form a bunny, they first used 3d software to create meshes which are the shapes
that form to make the bunny. After they connected the meshes through an
algorithm they developed, they had one final step: making sure the staple-a
long DNA strand that holds other strands together in key areas and allows those
selected DNA strands to self assemble). It's a long process to create just one of
these DNA figures, and every time a new one comes out it's a masterpiece in the
field of science.

Q1How has this changed your view of the uses of DNA?
Q2If you had a chance to design a nanostructure (like the bunny) what would you
like to create and why?

http://www.sciencefriday.com/blogs/08/26/2015/pictureoftheweekdnabunny.html?series=31