Friday, May 18, 2007

Is music the universal language?

Laura-Lee Balkwill asks of a neurologist, a psychologist and an anthropologist, in a most wonderful All in the Mind podcast (30'):
Is music the universal language?

One person's spoken language might sound like gobbledy gook to another - but when it comes to music do we beat to a common evolutionary drum? Could music be the universal language - linking minds across cultures and ancestral time? And, which came first - music or language? Don your headphones and climb aboard for an acoustic adventure. Does music lie at the heart...and brain...of what it means to be human?
An excerpt from the podcast transcript that summarises the interests of each speaker:
Laura-Lee Balkwill [interviewer]: So why is music interesting – that's a complex question with a lot of different answers depending on who you talk to.

Catherine Falk [ethnomusicologist]: Music is utterly entwined with notions of memory, of emotion, of identity, of relationship with place and time; of relationship with other human beings, with all living and inanimate objects, relations with the heavens, with the gods, people's ways of interpreting their worlds or their cosmologies in their own specific, very culturally specific ways.

Laura-Lee Balkwill [psychologist] : I find music interesting because of its power to evoke emotion, to express emotion, to make people feel. And that's how I got into studying music and emotion to begin with because I wanted to explore how that worked and whether that worked the same across cultures.

Ani Patel [neurologist]: And it presents science with opportunity to study the relationship between brain function and complex cognition, which is one of the big topics in neuroscience today: how does brain circuitry give rise to the mental experiences that we have of the world? And music is a wonderful domain to explore that because of its complexity and its reducibility, I would say.
A summary of some other points that fascinated me:
  • Cathy Falk: archeological evidence of Neanderthal dwellings suggests music may pre-date language;
  • Ani Patel: alternatively, we may not have evolved a capacity for making music so much as creatively adapted other cognitive mechanisms such as those responsible for language;
  • Ani Patel: "modern neuro-imaging has shown us that both sides of the brain are very much involved in processing music. Language as well – but language does have a strong left hemisphere bias whereas music seems to draw on both sides of the brain – and does importantly, integrate different aspects of brain function in [...] waves of integration as opposed to simple processing chains";
  • Laura-Lee Balkwill: Some aspects of music, such as certain fundamental characteristics' evocation of particular emotional responses, seem to be universal;
  • Patel & Falk: whereas many others are culturally-specific;
  • Ani Patel: "Some very deep and evolutionarily ancient reward centres of the brain [are] activated by [...] music. And these are areas that are typically activated by biologically significant behaviour such as eating, or reproducing or so on, and yet they [are] activated by this abstract acoustic stimulus with no obvious survival value";
  • Cathy Falk: "Music is not an universal language any more than language itself is an universal language. I don't understand Swahili; it is a language. People construct the syntax of music very much in tandem with the way they construct themselves socially in their own very culturally specific ways."
I very much recommend listening to the podcast itself, which is interspersed with some great audio illustrations of diverse musics.

Music taps into our richest, deepest selves: our emotions, our language skills, our imagination, our universal humanity and the culturally-contextualised aspects of our identity. To understand music (and, in many ways, we are only just beginning to) really would be to go a long way to understanding what it is to be human.

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Tuesday, May 08, 2007

Shaping the evolution of human language

BBC News reports:
Researchers in the US say they have firm evidence that apes communicate using gestures - shedding light on the development of human language.

The team analysed the way bonobos and chimpanzees used hand and limb gestures to make themselves understood. The scientists found the apes used gestures more flexibly than the way they used facial and vocal expressions. They say the findings support the theory that human language developed through the use of hand gestures.
These research findings would seem to chime nicely with Vilayanur S. Ramachandran's ideas about overlapping cognitive processes for visual and auditory gestalts forming one basis of the evolution of human language. My speculation (which may very well not be original): having learned to gesture, did our distant ancestors take inspiration from the shapes both of the objects around them and of their own gestures to form the sonic shapes of their first, rudimentary words?

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Tuesday, May 01, 2007

Computers get a little brainier

Scientists have just about managed to simulate half a mouse brain, albeit rather slowly. What an intricate bit of kit our brains must be!

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Saturday, April 21, 2007

Self and Identity as Memory

"Self and Identity as Memory", by John F. Kihlstrom, Jennifer S. Beer and Stanley B. Klein of University of California, is a fascinating (albeit densely condensed) survey of philosophical, cognitive and behavioural psychological and neurological research findings that establish the basis of our sense of self and identity in our memory (as the paper's title suggests).

The authors do an admirable job in pulling together myriad strands of narrative (their diverse research sources) into a coherent whole, and there are many intriguing insights along the way—for instance, on the mutually-discrete nature of semantic and episodic memory, and on the possible existence of a separate brain module for self-awareness (as opposed to awareness of others). All the same, I couldn't help feeling that the authors were having to work pretty hard to get all their material to hang together—as if they were trying to facilitate a discussion by a hundred blind men groping their way around an elephant towards a consensus on what the elephant actually is.

Such is the slippery beast of identity... ; )

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Tuesday, February 06, 2007

The timetelling brain

Some aspects of our human experience seem so obvious and "natural" to us that we don't stop to question how they arise. For instance, I certainly have never given any thought as to how my brain detects the passage of time before!

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