An interesting article from Thom Scott-Phillips has been recently published in the Journal of Cognition and Culture: A (Simple) Experimental Demonstration that Cultural Evolution is not Replicative but Reconstructive – and an Explanations of Why this Difference Matters.
The article describes an experiment that nicely illustrates (“make flesh” in the words of Scott-Phillips) a thought experiment proposed by Dan Sperber. Shortly, imagine a Chinese whispers game, in which chains of individuals have to reproduce two drawings. One is a familiar configuration (in the specific case, the first three letters of the latin alphabet), while the other one is a meaningless scribble (see the image below, from Scott-Phillips’ paper).
Continue reading “Replication and Reconstruction. A quick note on Scott-Phillips 2017”
[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.
Continue reading “Possible confounds in conformity research – II”
I’ve just uploaded on SocArXiv a new preprint, A cultural evolution approach to digital media, where I suggest (surprise!) that cultural evolution provides some interesting tools to analyse digital media.
Continue reading “New preprint “A cultural evolution approach to digital media””
One of the articles of my holiday-accumulated reading list was, given my current interest in the effects of digital media on cultural transmission and evolution (see here), Katherine Viner’s How technology disrupted the truth, a long read of the Guardian. The piece got extensive – and almost exclusively positive – attention (there are, when I write, 1,589 comments and around 64,000 shares). In fact, I found it quite hideous, and I believe it also embodies a widespread common-sense attitude towards digital technologies, and social media in particular, so I decided to write here some comments.
Continue reading “Did technology disrupt the truth? Probably not”
[I am starting to gather more systematically thoughts and materials about the topic “Cultural Evolution in the Digital Age”, including a twitter hashtag #CulturalEvolutionInTheDigitalAge where I plan to collect some recent – and less recent – papers, articles, discussions, etc. I hope to write at some point a more thorough introduction to this project. For now, here some extemporaneous reflections on the echo chambers phenomenon]
Continue reading “Echo chambers”