Tag Archives: Beauty

Beauty is in the Eye of the Beholder

Mount Sainte-Victoire by Paul Cézanne.

The short time that I’ve been in Paris has felt so much longer than a few weeks. Last week, I spent several hours at the Musée d’Orsay, where I finally fulfilled my dream of viewing impressionist masterpieces face-to-face. A few nights later, I was looking through the photos that I’d taken during my recent travels, when one particular photo of a building caught my eye. Something about the image irked me. The asymmetry, I realized, was throwing my mind into a sort of desire to fix the photo. I began to wonder: What makes something beautiful, and what does symmetry have to do with it?

 

A building I saw when walking to the Soup Bar and thinking I didn’t like the way it looked.

 

A study by Makin and colleagues used a “gaze-driven evolutionary algorithm” to examine three factors: 1) Do people evaluate symmetry instinctively? 2) Do people prefer perfect symmetry or slightly imperfect imagery? 3) When people grow familiar with symmetry, do they lose fascination with it? Researchers employed eye-tracking technology to observe for factors that attracted 54 test subjects’ gazes (Makin et al.,2016). Observation of event-related potentials (ERPs) following exposure to abstract patterns suggested that ERPs responsible for aesthetic evaluation (beautiful vs. ugly) did not fire during evaluation of symmetry. In regards to the three questions initially posed, overall results suggested that, though symmetry was a significant factor in participants’ selection, 1) people do not automatically evaluate symmetry, and rather prefer slight imperfection; 2) people do not express marked preference for either symmetry or slight imperfection; 3) people’s interest in symmetry does not change following familiarization.

Based on this study, it seems like symmetry plays a part in all of our visual imagery preferences, though likely not to a critical extent. Perfect isn’t perfect. The question of aesthetic preference brought my thoughts back to what I’d seen at the d’Orsay. I began thinking about Cézanne and Monet, and what I’d read.

When Cézanne split from the impressionist project of “worshipping light” (Lehrer 103), he began a ceaseless quest to mimic the fleeting nature of the physical world. The images we see slowly take shape as they filter from V1 to V5. As Jonah Lehrer writes, “If the mind didn’t impose itself on the eye, then our vision would be full of voids” (Lehrer 117). Cézanne’s nonfinito technique taps into this process. Unlike the classic impressionists, Cézanne’s use of blank space mimicked the brain’s process of filling in emptiness to create meaning in otherwise meaningless sensory information.

Take, for example, a thin gray stripe, a “fragile scratch against the sprawling void” (Lehrer 115). Alongside the ambiguous forms of trees, a river, and the sky, it adopts a sensible identity as a mountain range, as our mind has already identified a coherent nature scene. Cézanne’s art alludes to the senselessness of reality and our capability — and need —  to make sense of it.

Vered Aviv concludes that abstract art promotes new meaningful neural connections that lead to higher-level brain states. The brain process after viewing abstract art “is apparently rewarding as it enables the exploration of yet undiscovered inner territories of the viewer’s brain” (Aviv, 2014). “‘The eye is not enough… One needs to think as well.’ Cézanne’s epiphany was that our impressions require interpretation; to look is to create what you see” (Lehrer, 2008).

Research by Hochstein and Ahissar proposes that “Vision at a glance reflects high-level mechanisms, while vision with scrutiny reflects a return to low-level representations” (Hochstein and Ahissar, 2002). Impressionism attempted to recreate an ‘impression’ of nature, a fleeting moment. Though Cézanne’s works outgrew impressionism with its abstract techniques, Monet’s works remained comparably decipherable and photographic. One might compare Cézanne’s works with what Hochstein and Ahissar call vision at a glance, and Monet’s to vision with scrutiny, a prolonged observation and interpretation of a perceived landscape. If “Cézanne’s art was a mirror held up to the mind” (Lehrer, 2008), then “‘Monet [was] only an eye’” (Lehrer, 2008), a lens.

Lehrer writes that “[Cézanne] forces us to see, in the same static canvas, the beginning and end of our sight… The painting emerges, not from the paint or the light, but from somewhere inside our mind” (Lehrer, 2008). Though recent research has since revealed much more about art, visual interpretation, and various other related processes, Cézanne was an anomaly of his time, a painter with a vision that was simultaneously humanistic and scientific.

When photography first developed during the era of impressionism, French painters rebelled because “the camera was a liar… Because reality did not consist of static images. Because the camera stops time, which cannot be stopped” (Lehrer, 2008). I wonder what Cézanne would have thought in my position. Maybe he would have already identified by then the inherent futility in taking the “perfect” picture, or recognized that my disappointment in the photo lay in the inherent dishonesty of photography.

Or maybe Makin and colleagues were onto something when they suggested that symmetry isn’t a necessary condition of beauty. After all, it was the imperfections and the fleeting nature of Cézanne’s fruit and Monet’s flowers that left them floating through my consciousness long after I returned to my apartment. In the end, I guess, beauty is in the eye — and the brain — of the  beholder.

References

Makin ADJ, Bertamini M, Jones A (2016) A gaze-driven evolutionary algorithm to study aesthetic evaluation of visual symmetry. i-Perception March-April:1-18. https://doi.org/10.1177/2041669516637432.

Aviv V (2014) What does the brain tell us about abstract art? Frontiers in Human Neuroscience 8:85. https://doi.org/10.3389/fnhum.2014.00085.

Hochstein S and Ahissar M (2002) View from the top: Hierarchies and reverse hierarchies in the visual system. Neuron 36(5):791-804.

Lehrer J (2008) Paul Cézanne: The process of sight. In Proust was a neuroscientist (Reprint ed.). pp. 96-119. Mariner.

Image 1 (Lehrer, 2008)

Image 2 was taken by myself.

Have you pharma-seen the Parisians?

Usually when I’m walking through the streets of Paris, I have my phone clutched in my hand with my eyes glued to Google Maps on my screen. Fortunately, now that over a week has passed and I actually know the route from the metro stop to our apartment, I am able to familiarize myself with the different stores and boutiques that we stroll past every day. One symbol that has caught my eye repeatedly is a green glowing cross. It signals a “pharmacie” here in Paris. During our ten-minute commute, we walk past not one, not two, but four pharmacies.

The four pharmacies we pass by every day

French pharmacies are a bit different than the usual CVS that we go to in America. Similar to the states, pharmacies are the place Parisians go to when they need to get some over-the-counter drugs, medicine, or antibiotics. But one can also visit a pharmacie when they need high quality cosmetics, hygiene, and beauty products. The shelves are lined with expensive-sounding brands in beautiful glass bottles, yet the prices for most products are around the same cost as my lunch. As a self-proclaimed “skincare junkie”, I was in absolute awe at not only the affordability of the products, but also at the wide variety and novelty of it all. By our fourth day in Paris, my skin had already started breaking out, and I set out to buy some new items to add to my skincare routine.

Left: the inside of a parapharmacie; Right: my personal purchases, 10/10 recommend

Based on the high prevalence of pharmacie locations, it is no surprise that the French value their skincare. The French standard of beauty seems like it is not the same as Americans, illustrated by a simple search on Youtube on “French versus American makeup”. It is evident by the thumbnails that the French embrace an aesthetic that is much more natural, understated, and effortlessly chic. In order to achieve that, they focus on a flawless base achieved by skincare. Just after a few days of observation, my fellow female classmates and I have all shared the same sentiment: “How do the French have such nice skin? How are French girls so pretty?” As I have made it my personal goal to get even an inch closer to the unattainable “French-girl beauty”, I started to think about how the brain perceives beauty and attractiveness in human faces.

Youtube search results of “French versus American beauty”

Human faces are one of the most interesting visual stimuli that we perceive on a daily basis. Each unique face can convey information about a person, including their age, sex, and emotional state. The ability of our brain to take this information and process it within milliseconds plays a critical role in our day-to-day social interactions. There is evidence that supports the face-specificity hypothesis, which states that humans have specialized cognitive and neural mechanisms that are dedicated to the perception of faces (Kanwisher & Yovel, 2006). Previous studies have shown that the brain uses at least three cognitive domains in deciding the value of attractiveness: the occipital and temporal lobe to process face views, the inferior occipital gyri which perceives facial features, and the fusiform face area (FFA) which receives that information and plays a key role in facial recognition (Yarosh, 2019).

A meta-analysis study conducted by Bzdok et al. gathered multiple studies that investigated the neural correlates of evaluating facial attractiveness. When analyzing the fMRI experiments on attractiveness judgments, it was seen that facial beauty might be evaluated in the orbitofrontal cortex, which in a nutshell is responsible for cognitive decision-making, according to reward value. Additionally, it was found that the amygdala detects the socio-emotional value, or the “beauty”, of the sensory stimuli that we come across visually and aurally. The combination of these results suggests that there is a general role of the reward circuitry in social judgments. (Bzdok et al., 2011). Essentially, this study was able to show that the assessment of beauty in our brains deals with reward stimulation, and that attractiveness is a social marker of long-evolutionary success, a.k.a. having more kids. Having a lot of children holds high socio-emotional value.

Unsurprisingly, the judgement of attractiveness across men and women is quite similar. A study that covered 919 studies and over 15,000 observers reported that people agree, both within cultures and across cultures, who is attractive and who is not (Langlois, et al. 2000). Six-month-old infants even gaze longer at faces judged by adults as “attractive” and spent less time looking at faces that were judged as not attractive (Ramsey, et al. 2004). This data suggests that judgments of physical attractiveness are somehow hard-wired in human genetics, and the actual neural circuitry that takes place within the orbitofrontal cortex and amygdala back up those claims. Hopefully, with a bit of luck and some extra French skincare, six-month-old infants will take a longer look at me. In the meantime, here are some locations where YOU can pick up from quality skincare products! Just look at how many locations there are!

References

Bzdok, D, Langner R, Caspers S, Kurth F, Habel U, Zilles K, Laird A, Eickhoff SB (2011) ALE meta-analysis on facial judgments of trust-worthiness and attractiveness. Brain Struct. Funct 215: 209–2231

Kanwisher N, Yovel G (2006) The fusiform face area: A cortical region specialized for the perception of faces. Philos. Trans. R. Soc. B 361:2109–2128

Langlois J, Rubenstein A, Larson A, Hallam M, Smoot M (2000) Maxim or Myths of Beauty? A meta-analytic and theoretical review. Psychol. Bull 126: 390–423

Ramsey J, Langlois J, Hoss R, Rubenstein A, Griffin A (2004) Origins of a stereotype: Categorization of facial attractiveness by 6-month-old infants. Dev. Sci 7: 201–211.

Yarosh, DB (2019) Perception and Deception: Human Beauty and the Brain. Behavioral sciences 9: 34

https://www.youtube.com/results?search_query=french+vs+american+makeup

La belle ville de Paris: Perceptions of Beauty

So far, two weeks of getting lost in the metro, enduring drastic weather changes, and having frustrating French conversations at the market have passed during our stay in Paris. From the expectation of having exact change for every monetary transaction to the snarling gazes at our (somewhat) loud group of fifteen in the metro, adapting to the social norms of the French culture has proven to be quite the challenge (I’m just glad I haven’t been pickpocketed…yet).

Arc de Triomphe

However, living in one of the world’s most beautiful cities and being surrounded by some of the most famous landmarks in the world have made it easy to forget these daunting hardships faced by our curious group of American college students. Whether it’s marveling at the size of the Eiffel Tower, walking down the Champs-Élysées with the Arc de Triomphe always in view, or even just observing the characteristically quaint Parisian architecture of all the apartment buildings, Paris always has something to offer around every corner. Thus, as a student who’s on this trip to learn more about neuroscience (and to eat lots of delicious food), I began to question myself: What makes these Parisian scenes so appealing and beautiful? What’s the neuroscience behind what we determine as beautiful? I’m hungry, where can I find me some crêpes?

Eiffel Tower

I came across a study focusing on brain systems with regards to aesthetic and perceptual judgment. The scientists who conducted this study, Ishizu and Zeki (2013), have previously shown that the experience of beauty, regardless of its source (for instance, looking at a famous art masterpiece or listening to beautifully composed music), activates an area of the medial orbitofrontal cortex (mOFC) (Ishizu and Zeki, 2011). This area of our brain is involved in the cognitive process of decision-making. Thus, judgment comes into play when you’re making these decisions.

medial orbitofrontal cortex (mOFC)

If you were shown a picture and you were told to say whether you thought it was beautiful or not, not only are you making judgements based on the picture’s aesthetics, you’re also making judgements based on its quality. So what’s the difference between the two? Let’s say you were given two paintings and you were told to determine which one you thought was more beautiful. When shown these pictures, you see that one painting (let’s say painting A) was three times the size of painting B and also seemed to appear brighter. Right off the bat, you’ve made judgements about painting A’s qualities (size and brightness). However, when you observe painting B, you notice that even though it may not be as big or as bright as painting A, you find painting B’s content to be portrayed as more aesthetically pleasing than painting A. This study aimed to figure out whether aesthetic judgements also involved the activity of the mOFC and how these two types of judgement contribute towards judging the beauty of something, like crêpes!

To test this, human volunteers (non-artists or musicians to alleviate any bias) went through two sessions: aesthetic and brightness. In each of these session, the subjects were shown a series of two paintings and were told to judge which one was more beautiful (in the aesthetic session) or brighter (in the brightness session). The researchers used functional magnetic resonance imaging, or fMRI, scans that acquired readings of blood oxygen levels in the brain. This allows researchers to see what areas of the brain are being activated when the subjects are told to judge the paintings.

Figure 6 of Ishuzu and Zeki (2013) – shows what brain areas are affected by the type of judgment (brightness or aesthetic).

Results showed that aesthetic and brightness judgments use both shared and separate brain systems. While aesthetic judgement mainly activated subcortical regions and the OFC (areas previously mentioned that were associated with beauty), brightness judgement did not activate any areas with significance compared to the areas activated by aesthetic judgment. However, both aesthetic and brightness judgement activated shared systems, mainly involving the dorsolateral prefrontal cortex (dlPFC) (involved with decision making, memory, and cognition) and bilateral anterior insula (known to be involved with many functions, including cognitive and emotional processes).

A beautiful crêpe

This new insight has led me to think about how I judge Paris’s beauty. Do I think the Eiffel Tower is beautiful, or am I just awestruck by its massive size? Do I think the Parisian architecture is beautiful, or is my familiarity to what I normally see in America causing me to think otherwise? The study mentions that further separating the processes of judgement, decision, and experience is difficult because they all use the same brain areas. Being able to understand these separate processes would allow us to really understand how this part of our brain works and finally uncover the truth as to why I find crêpes so beautiful.

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Sources:

Ishizu T, Zeki S (2011) Toward A Brain-Based Theory of Beauty. PLoS ONE 6(7):e21852.

Ishizu T, Zeki S (2013) The brain’s specialized systems for aesthetic and perceptual judgment. The European Journal of Neuroscience 37(9):1413–1420.

mOFC picture: https://commons.wikimedia.org/wiki/File:MRI_of_orbitofrontal_cortex.jpg

Arc de Triomphe, Eiffel Tower, and Crêpe pictures were personally taken.