Can we know the evolution of human cognition?

According to Dick Lewontin (evolutionary biologist, geneticist and social commentator) there is no way to know the evolution of cognition. He argued that we should ‘give up the childish notion that everything that is interesting about nature can be understood. [..] It might be interesting to know how cognition (whatever that is) arose and spread and changed, but we cannot know. Tough luck.’ (Lewontin, 1998:130)

In the study of the evolution of music cognition, we will have to take into account this critique. So, do we better stop right now, or is there a way to deal with this criticism? (See also Bolhuis & Wynne, 2009.)

While it became quite popular to address music cognition from an evolutionary perspective, there is still little agreement on the idea that music is in fact an adaptation, that it influenced our survival or that it made us sexually more attractive. Music appears to be of little use. It doesn’t quell our hunger, nor do we live a day longer because of it, so why arguing that music is an adaptation?

Are there indeed no arguments to show that music has played a more direct and shaping role in man’s evolutionary development? Or should music be considered as a sexually selected trait, a trait that evolved to attract partners rather than to improve survival chances? Or is music, as Pinker suggested, no more than a pleasant side effect of more important functions, such as speech and language?

Recently a number of interesting papers appeared (see references below) on the possibilities and impossibilities (Heyes, 2012; part of a special issue by The Royal Society dedicated to this topic) and the prospects and pitfalls of studying the evolution of cognition, music cognition being no exception (Honing & Ploeger, 2012; Marcus, 2012).

See also the Science Daily.

Heyes, C. (2012). New thinking: the evolution of human cognition. Philosophical Transactions of the Royal Society B: Biological Sciences, 367 (1599), 2091-2096 DOI: 10.1098/rstb.2012.0111

Honing, H., & Ploeger, A. (2012). Cognition and the Evolution of Music: Pitfalls and Prospects Topics in Cognitive Science, 4 (4), 513-524 DOI: 10.1111/j.1756-8765.2012.01210.x

Marcus, G. (2012). Musicality: Instinct or Acquired Skill? Topics in Cognitive Science, 4 (4), 498-512 DOI: 10.1111/j.1756-8765.2012.01220.x