from the world's big
Love of instrumental music is linked to intelligence, researchers say
From deejays to Debussy, it's all brain food.
- A new study supports earlier suspicions of a link between intelligence and non-vocal music.
- This may have to do with a taste for novel experiences way back on the savannah.
- Purely instrumental music may simply be more fresh for brainiacs.
The Savanna‐IQ Interaction Hypothesis, based on the Savannah Principle, proposes that intelligent people are more likely to be attracted to novel stimuli than other individuals are. A 2011 study — "Why More Intelligent Individuals Like Classical Music," by evolutionary psychologist Satoshi Kanazawa — proposed that since music evolved from vocal sounds, purely instrumental music would, by comparison, be one such novel stimulus. Ergo, smarter people are more likely to enjoy instrumental music.
We may logically expand that category beyond Kanazawa's boundaries to encompass other, non-classical, but nonetheless purely instrumental forms of music, such as ambient/chill-out electronica, dance music, jazz, and so on. With that caveat, a study recently published in Evolutionary Behavioral Science, "Intelligence, Music Preferences, and Uses of Music From the Perspective of Evolutionary Psychology," adds fresh support for Kanazawa's take on musical taste.
"I first became interested in this topic while working on a project looking into the relationship between personality traits and musical preferences," says the study author, psychology and primate conservation student Elena Račevska of Oxford Brookes University, according to PsyPost. "We decided to further test his hypothesis using a different set of predictors — namely, a different type of intelligence test (i.e. a nonverbal measure), and the uses of music questionnaires."
Račevska gathered data from 467 Croatian high school students, measuring "a number of variables likely to have an effect in this relationship, such as taking part in extra-curricular music education, its type and duration."
The study confirmed Račevska's earlier insight: "We found intelligence to be a significant predictor of the preference for instrumental music." (Side note: Intelligent students were not likewise disproportionately drawn to singing.)
Račevska also found that the manner in which subjects used music, as well as its personality, affected their preference. Five such personality factors were identified: reflective, popular, conservative, intense, and sophisticated. Those who listened to music more cognitively — consciously analyzing its composition and performance — especially enjoyed instrumental music. They same people were also attracted to reflexive, intense, and sophisticated music.
Image source: PopTika / Shutterstock
What future research might explore
Račevska admits, "Intelligence is only one of the constructs connected to musical preferences, there are many others, such as personality traits, gender, age, degree of education, and family income." There's also the issue of complexity since, "complexity of vocalization is preferred by many species, which could mean that it is evolutionarily familiar."
"It would also be wonderful to conduct a longitudinal study of how musical preferences change throughout developmental stages of the human life," Račevska says, "and how they interact with numerous social and personal variables, such as societal pressures and peer relationships."
Finally, she notes, one's culture is likely to be an additional factor influencing musical preference, and "a cross-cultural study could examine and control for influences of culturally specific ways of experiencing music, and other music-related behaviors."
Image source: Marcela Laskoski / Unsplash
What would it be like to experience the 4th dimension?
Physicists have understood at least theoretically, that there may be higher dimensions, besides our normal three. The first clue came in 1905 when Einstein developed his theory of special relativity. Of course, by dimensions we’re talking about length, width, and height. Generally speaking, when we talk about a fourth dimension, it’s considered space-time. But here, physicists mean a spatial dimension beyond the normal three, not a parallel universe, as such dimensions are mistaken for in popular sci-fi shows.
If machines develop consciousness, or if we manage to give it to them, the human-robot dynamic will forever be different.
- Does AI—and, more specifically, conscious AI—deserve moral rights? In this thought exploration, evolutionary biologist Richard Dawkins, ethics and tech professor Joanna Bryson, philosopher and cognitive scientist Susan Schneider, physicist Max Tegmark, philosopher Peter Singer, and bioethicist Glenn Cohen all weigh in on the question of AI rights.
- Given the grave tragedy of slavery throughout human history, philosophers and technologists must answer this question ahead of technological development to avoid humanity creating a slave class of conscious beings.
- One potential safeguard against that? Regulation. Once we define the context in which AI requires rights, the simplest solution may be to not build that thing.
Duke University researchers might have solved a half-century old problem.
- Duke University researchers created a hydrogel that appears to be as strong and flexible as human cartilage.
- The blend of three polymers provides enough flexibility and durability to mimic the knee.
- The next step is to test this hydrogel in sheep; human use can take at least three years.
Duke researchers have developed the first gel-based synthetic cartilage with the strength of the real thing. A quarter-sized disc of the material can withstand the weight of a 100-pound kettlebell without tearing or losing its shape.
Photo: Feichen Yang.<p>That's the word from a team in the Department of Chemistry and Department of Mechanical Engineering and Materials Science at Duke University. Their <a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.202003451" target="_blank">new paper</a>, published in the journal,<em> Advanced Functional Materials</em>, details this exciting evolution of this frustrating joint.<br></p><p>Researchers have sought materials strong and versatile enough to repair a knee since at least the seventies. This new hydrogel, comprised of three polymers, might be it. When two of the polymers are stretched, a third keeps the entire structure intact. When pulled 100,000 times, the cartilage held up as well as materials used in bone implants. The team also rubbed the hydrogel against natural cartilage a million times and found it to be as wear-resistant as the real thing. </p><p>The hydrogel has the appearance of Jell-O and is comprised of 60 percent water. Co-author, Feichen Yang, <a href="https://today.duke.edu/2020/06/lab-first-cartilage-mimicking-gel-strong-enough-knees" target="_blank">says</a> this network of polymers is particularly durable: "Only this combination of all three components is both flexible and stiff and therefore strong." </p><p> As with any new material, a lot of testing must be conducted. They don't foresee this hydrogel being implanted into human bodies for at least three years. The next step is to test it out in sheep. </p><p>Still, this is an exciting step forward in the rehabilitation of one of our trickiest joints. Given the potential reward, the wait is worth it. </p><p><span></span>--</p><p><em>Stay in touch with Derek on <a href="http://www.twitter.com/derekberes" target="_blank">Twitter</a>, <a href="https://www.facebook.com/DerekBeresdotcom" target="_blank">Facebook</a> and <a href="https://derekberes.substack.com/" target="_blank">Substack</a>. His next book is</em> "<em>Hero's Dose: The Case For Psychedelics in Ritual and Therapy."</em></p>
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