The complexity of some cultural domains, such as technology, seems to be linked to population size. This makes intuitive sense: after all, we have iPhones and rockets, whereas hunter-gatherer societies do not. How does this work, however, for other, non-technological, cultural domains? Western stories are not more complex than Aboriginal Australians ones (I guess). What about religions, or kinship systems?
The next EHBEA conference in Paris will include a “satellite meeting” on cultural attraction theory: Cultural Evolution by Cultural Attraction: Empirical Issues
I will give a talk titled Three predictions for cultural attraction theory. Below the (tentative) slides. If you cannot wait, the three predictions are:
- lo-fi copying is more significant than hi-fi copying in cultural transmission
- domain-general social influence (context-biases) is not very important
- culture is a matter of global, often neutral, traditions, more than local, generally adaptive, differences
I gave yesterday a talk, via Skype, in the Cultural Evolution Seminar series at Tartu, Estonia. Oleg Sobchuk and the other organisers are doing a great job, I think, to diffuse knowledge about cultural evolution (and cognitive sciences, and digital humanities, etc.) and I was pleased to give my small contribution. Their website links also to the videos of two of the previous speakers, Cristina Moya and Alex Mesoudi, and provides excellent reading materials and information about cultural evolution.
[The first part is here]
In a successive series of models, published in Scientific Reports, we considered whether other individual-level mechanisms could potentially be mistaken for conformity, generating relations between frequency of a trait and probability to copy it that looked like sigmoids. We choose a few simple and plausible mechanisms (you can refer to the paper for details) and we found that two of them – on a total of seven tested, plus three controls – generated relations for which a sigmoid function produced a better fit than a linear one (see figure below). The codes for running all simulations (written in Matlab) are available through the Open Science Framework.
The annual conferences of the European Human Behaviour and Evolution Association (EHBEA) are usually cultural evolution-friendly. Same goes for this year: the conference will be held next week at the London School of Hygiene and Tropical Medicine. All talks are in fact very relevant, but here a selection of the titles more explicitly related to cultural evolution, in chronological order (the full booklet can be downloaded here). It may give a reasonably good idea of what is currently happening in the field – with perhaps some Eurocentric bias.