Senses!
Again, with this journal I would like to go back to another topic we discussed earlier on and elaborate more on it. This time, I will be talking about our senses and add some new ideas and thoughts I came up with after learning new things.
As human beings, we have five senses (sight, smell, touch, taste and hearing) that allow us to learn many things about our surroundings. Each one works in a different way and requires different parts of our body. Alone, each sense is able to provide us with information but together they provide more accurate depictions of our environment.
It is by means of our eyes that we can see the world that surrounds us. However, does this mean that what we see is always real? Perhaps, it is not. I think that we cannot rely on our sight completely since it can easily be tricked by things such as optical illusions. For some time now, I have believed that what we see is not necessarily or entirely what is actually there. Since the only other animal with which we can communicate clearly is another human being, we all have a similar visual perspective of the world that surrounds us. For instance, the sky is blue and the leaves of the most trees (during the spring) are green. If we were able to get an insight of the visual perspective of other animals, our reality and what is really there could greatly change. For instance, I was studying color perception for art class two years ago and came across some interesting facts about animals. Humans are considered trichromat, which means they have three structures that perceive colors. One receives blue, one red and the last one green; all other colors can be formed out of these. Bees are also trichromats but they have only two cones -the structures to perceive color- that receive human visible wavelengths and one which is sensitive to colors in the ultraviolet range. Humans are unable to see ultraviolet colors so if we could have a bee’s perspective on the world, we would probably come up with things we did not know before. Parrots are also worth mentioning since they are tetrachromats (4 cones) and there is a hypothesis that some women (2-3%) could also be tetrachromats, which can help them in color differentiation. So what do these examples tell us? The way we see the world could be influenced if we were presented with different perspectives showing that what we see might not be the only reality.
Smell is another interesting sense that humans have. All humans are born (hopefully) with a nose. Most of us were taught that roses have a pleasant smell and old, sweaty clothes give off a disgusting smell. As I mentioned, these are things that I believe are taught to us. For example, associating roses as a good smell and dirty as a bad smell is something we are taught based on our culture; in other cultures, the smell of sweat can be seen as pleasant since it represents masculinity. Nonetheless, I think there is also an innate ability that each person has to distinguish what they consider as pleasant or unpleasant whether this goes with what they were taught or not. One could also say that humans are mistaken seeing as they are simply creating a personal opinion about a simple gaseous molecule that is released by a certain object or organism. For instance, my cousins often misidentify different types of scents. They believe that some of my perfumes smell bad, even though the scents used to create it are ones they would usually find attracting on their own. I own a key-lime coconut body splash which to me smells magnificently. My cousins say they do not like the smell of it although they like the smell of both coconut and key-lime. I believe it is the mix what leads them to say they do not enjoy the scent. My cousins are also picky about the smell of certain foods while they are being cooked. I can be in the kitchen creating a wonderful meal that I am sure will love, and they will come into the kitchen and whine about the awful smell. The concept they have about a smell is in many ways different to mine. I wonder if a person’s capacity for smell affects the concept that person has for smell. Also, I have met some people that have an amazingly keen sense of smell and are able to detect what remains of smells.
Hearing is probably my favorite out of the five senses. My life is based on music and I really don’t know what I would do if I was unable to hear others when they talked to me. As I mentioned, music plays an important role in my life. It provides me entertainment, comfort, relaxation, advice, among others. You may wonder how music is able to provide me with all of these. Well the answer is fairly simple. By listening to the different beats of the music I am able to completely change my current mood which makes music one of my passions in life. If I am extremely frustrated or angry and I listen to beats used metal or punk rock I slowly calm down. I guess that the feeling of something being much more energetic and powerful than me slowly leads me to calm down. It is hard to express in writing. Anyways, the same happens for other moods, if I am feeling down and sad and I listen to happy, cheerful melodies, I will most likely lighten up and cheer up. Besides the mood changes, music provides infinite (well, as long as there is power in my house or my iPod has battery) hours of entertainment and I tend to listen to music every spare moment I have throughout the day. As for comfort and advice, the lyrics used in songs often describe situations that people face. For instance, there are both happy and sad breakup songs since it depends on how you ended your relationship how you will feel. I am able to find songs that directly link to events I am experiencing in my life and to learn from the advice given in the lyrics. I am in no way saying that all lyrics are good and that all advice given by songs should always be followed, but I am simply saying that the solutions presented by the artists could be helpful and make things better. What people like to hear and what they do not, whether it is music or nature or city sounds, can differ greatly. For instance, I am the type of person who listens to almost any type of music out there. I have met people that prefer to stay in one genre and think any other is terrible. One last thing I want to point out about hearing is that just like with sight, humans are presented with very few different perspectives and if we were able to hear what a dog, elephant or whale listens to, our perspective on sounds might drastically change.
Our tongue plays an extremely important role in our lives. I love sweet and savory foods, which leads me to consume these more often than bitter or salty foods. Taste is one sense that I feel is extremely subjective. I say this because even if twins were brought up together and fed the same things throughout their lives, one will see that they will not like and dislike the same types of food. Everyone who has a tongue will have the same flavor receptors (taste buds) that will sense the flavor in anything that comes in contact with our tongue. Nonetheless, every person develops a different set of likes and dislikes based on the stimuli they receive from their tongues. A great example for the different perspectives of taste is an experiment we did in biology about a week ago. The experiment was trying to test for different hereditary traits such as tongue rolling, widow’s peak and so on. One trait was the perception of a chemical on a piece of special paper. First we were given a piece of the special paper with no chemical as a control for the experiment, and later we were given a piece with the substance. As soon as the paper hit my classmate’s tongues I saw them squirm and look in disgust as they spit out the paper. On the other hand, when I performed the experiment, I was able to detect the chemical as a bitter substance, but the taste did not bother me at all. Different tastes can lead people to prefer certain foods over others which would be an interesting topic to research for my future career in Culinary Arts.
Finally, there is touch; another of my favorite senses that humans possess. The reason why I like touch is because of the amount of details that one can figure out about an object or organism by simply touching it. Many people would associate this sense with the hands mainly, but in fact, the whole body is able to feel and touch and determine what feels good and what does not. For instance, when I went to my mom’s office a few months ago, I sat on this lovely chair she had in her office. Roughly ten minutes later I had to stand up, stretch and sit on the floor for a while since the chair I used gave me a huge backache. To my hands, the texture of the fabric was amazing and with my sight I noticed how pretty the chair looked, yet the rest of my body was able to tell me that the chair did not feel comfortable. Touch is another sense in which I feel subjectivity is predominant. Not everyone likes to feel the same things and not everyone likes to be touched in the same way. By this I mean that some people really like hugging other and a lot of physical contact while others might prefer a personal space or “bubble” around them.
Senses are primordial elements of our everyday life. It is through them that we learn and discover the world. As you can see, there are some senses that I enjoy having more than others but nonetheless I regard all senses as indispensible and necessary in order to fully learn about the world.