We all do it. Even if we think we don’t or don’t remember
doing it, it still happens. Why is it
that we can’t remember and why do we dream about the things we dream
about? A consistent dream I would have was
of an old lady running up to me and stealing my stuff and me running after her
screaming that it was mine. Then out of nowhere I would find myself on a spaceship but invisible to everyone. I would have
that dream night on end during high school and I hadn't had it in awhile until
a couple of nights ago. So why is it
that she has reappeared and what does it represent? Different dream theories would say that this dream represent different things. For example, Freud would say that she was
part of my unconscious desires, thoughts or motivations. Maybe there was an old lady that was trying
to take my things and I wanted to say something, but never did and maybe the spaceship meant I wanted an adventure. With his psychoanalytic perspective, it would
suggest that I wanted to act out the aggression in my unconsciousness that I wasn't able to express in my conscious life (or something sexual, but I don’t
think really think there's anything sexual to this one). The activation-synthesis model of dreaming would
suggest that I was just processing daily activities and trying to connect loose
ends. Maybe I saw that old lady everyday
and I had lost something each day or maybe I was wandering around school feeling invisible. I don’t know how this theory would really interpret
my crazy lady/ spaceship dream. The video below takes the activation-synthesis model as
why we dream. Also, gives interesting
facts on why this is the most effective and how it makes us most
effective. It also helps understand REM
sleep and NREM sleep better. It’s kind
of long and he talks really fast so it’s a lot of information to take in but he makes it fun.
Bottom line of it is “our brains aren't here to make us friends; they are here to win.”
Our brains are here to help us process our days and help us solve our problems
while we are sleeping. While we sleep we
are making connections we didn't/don’t make during the day. In conclusion, it is difficult to figure out
why we are dreaming or even how due to the fact that only the person that’s
having the dreams can see it. I can
explain the crazy lady in my dream to someone else and even tell them details about the ship, but they will only know
what I tell them. What if I myself am not getting the whole story or am missing key details? And to think that this is only interpreting
my dream using these two theories and none of them dream dictionaries or dream interpreter people. Whew! So
many possibilities and questions still left to be answered. Thank goodness for science!
Tuesday, October 30, 2012
Wednesday, October 24, 2012
Oxytocin: The Trust Hormone
Hormones. They're responsible for alot of things, especially how we act
and react. Testosterone for example, helps men grow facial hair, increase
muscle mass, as well as help grow male organs. I think that's pretty
incredible, but we always hear about testosterone and estrogen and never really
about the other hormones like oxytocin. Oxytocin is often known as the trust
hormone or the cuddle hormone. It's what makes humans humane. The
link above provides a list of ten reasons while oxytocin is the best thing
since sliced bread. From helping in social situations to helping moms be
moms, oxytocin boosts pleasures. Although it is notoriously known for
trust and love, oxytocin's perhaps most important role is helping stimulate
contractions of the uterus during deliver of a baby. To me, I think that
helps the most. Imagine if women had nothing to naturally assist ease child
birthing. Today we have medicine and technology and fancy things to help
us, but imagine before. If our bodies didn't produce this hormone in the
past, I can't imagine how women would have gotten through that. The video below is a study on how oxytocin
helped men become “nicer”. Men took
either a placebo or oxytocin nasal spray and the ones with the oxytocin
typically acted nicer. It’s amazing how
our body has all these chemicals that work for different things. As time moves on, technology helps us
discover newer and more natural remedies to our problems. For example, the video also states how
oxytocin may also be used to treat social anxiety or autism in the future. One
day perhaps all dangerous drugs can be replaces with natural things our body
just makes on it’s own.
Monday, October 15, 2012
Synethesia: I Taste Blue & Hear Orange
Ever
wonder what it would be like to hear the color orange or taste the color
green? When I first stumbled upon this disorder, I thought it was so peculiar how our bodies could somehow be cross wired and pick up things not meant for them. It sort of felt like what it would be like being on a walkie talkie on a different wavelength picking up signals meant for someone else. Most people would find tasting colors is just silly, but to people who have to live with synesthesia
that is often the case. Synesthesia is
the perception of one sense is simultaneously perceived by another or other
senses. Although this disease has no
official established method to diagnose, about every 1 in 200 people have synesthesia. It is thought that people with synesthesia’s
neurons and synapses that are supposed to be within one sensory system somehow
cross to another sensory system. It is also believed that these synesthetic
experiences happen in the cerebral cortex. The most common form is colored
letters and numbers. The way a person
with synesthesia perceives life is involuntary.
They don’t think of what they are seeing they just see. It is projected outside of the body rather
than just in the mind when they are asked to imagine something. For a patient to have synesthesia, it must be
the same everytime. For example, if you
see blue when your try to imagine a 7, it has to be blue always. The video
below is a short film I found on Youtube.
The two boys have different kinds of synesthesia. The boy who is
putting headphones into different foods perceives tastes as sounds. The boy who is on the floor smelling records
perceives sound as smell. The items all
coming out of the giant speakers show that sound can be perceived as different
colors, shapes or textures.
Labels:
hear,
neuroscience,
perception,
senses,
stimulation,
synesthesia,
taste,
touch
Tuesday, October 9, 2012
Memory: CPU's Muse?
Memory has always been an interest of mine. The brain is a fascinating thing and no one really knows how it works. We have tried to come up with different methods and experiments to better help us label each part and assess what part is responsible for what, but when it comes to memory nothing is really concrete, yet anyway. Hermann
Ebbinghaus was a German psychologist whom is often called the father of
memory. Best known for his nonsense
non-syllables, Ebbinghaus was the first
to experimentally investigate the human memory.
Using himself as the only test subject, Ebbinghaus would have a list of
nonsense non-syllables (basically jibberish) that he would set off to try to
memorize and then would test himself later. With this, he established a
forgetting curve. The longer he waited to test himself, the more he forgot. This was one of the first things discovered
about our memory. Since then, many other
psychologists have given their fair time to trying to decipher how our memory
works. Most recently, Alan Baddeley has
more clearly made up a model that explains our memory. No system is perfect and his model has been
criticized, but his model is the latest and sets a foundation for any
future models to come.
This model, explains the memory most like a computer. Our sensory memory is seen as the input devices of a computer. What we see, hear, touch, etc brings in information just like typing into a keyboard or scanning something into a computer would. What we just saw or felt, is then sent to our brain and can stay there for awhile in the short term memory, but if we don't transfer it to the longer term memory it will be forgotten. On a computer, we would have something up on the screen, but if we don't save the file, it will be lost and not retrievable. All this work is all done by the central processing unit (CPU) on a computer which matches our central executive system in our memory. Below is a video comparing and contrasting why a computer is/ isn't like the brain.
Tuesday, October 2, 2012
Acting F.A.S.T
Strokes. Never really
expected just like heart attacks. That’s
why sometimes their called a “brain attack".
When I was younger, my grandpa had a stroke and I had no clue what that
was or why half of his body had just stopped working after he left the hospital. As my education advanced, I then realized
that the effects of strokes could be minor to severe. With the outlook depending on how much brain
tissue is damaged, which body functions have been affects, and how quickly it
got treated. For my grandma, the whole
left side of his body had stopped working.
From his leg to the right side of his mouth, no movement was shown. For years, he did rehab daily and I didn’t
quite understand what had happened and why he couldn't just get better. Now
looking back, I realize that he had a hemorrhagic stroke. A hemorrhagic stroke occurs
when a blocked vessel bursts open causing blood to leak to the brain. For him,
his right side of his brain had gotten damaged enough to not be able to control
the left side of his body since our brains are contralateral.
When my aunts had found him, I remember that he was talking to people who he hadn't seen in years. He was confused about his location and was acting like a drunken person. For people having a stroke, these are clear signs that something is wrong. They will have changes occurring to their five senses as well as to their balance and coordination. May is national stroke awareness month. Over 795,000 people will have strokes in the US. Every minute that goes by, caused more brain damage. By acting F.A.S.T., strokes can be caught quicker and can hopefully reduce the risk of brain damage.
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