Musings of a Palaeolinguist

Hannah recently directed me towards a new language evolution blog: Musings of a Palaeolinguist. From my reading of the blog, the general flavour seems to be focused on gradualist and abruptist accounts of language evolution. Here is a section from one of her posts, Evolution of Language and the evolution of syntax: Same debate, same solution?, which also touches on the protolanguage concept:

In my thesis, I went through a literature review of gradual and abruptist arguments for language evolution, and posited an intermediate stage of syntactic complexity where a language might have only one level of embedding in its grammar.  It’s a shaky and underdeveloped example of an intermediate stage of language, and requires a lot of exploration; but my reason for positing it in the first place is that I think we need to think of the evolution of syntax the way many researchers are seeing the evolution of language as a whole, not as a monolithic thing that evolved in one fell swoop as a consequence of a genetic mutation, but as a series of steps in increasing complexity.

Derek Bickerton, one of my favourite authors of evolutionary linguistics material, has written a number of excellent books and papers on the subject.  But he also argues that language likely experienced a jump from a syntax-less protolanguage to a fully modern version of complex syntax seen in languages today.  To me that seems unintuitive.  Children learn syntax in steps, and non-human species seem to only be able to grasp simple syntax.  Does this not suggest that it’s possible to have a stable stage of intermediate syntax?

I’ve generally avoided writing about these early stages of language, largely because I had little useful to say on the topic, but I’ve now got some semi-developed thoughts that I’ll share in another post. In regards to the above quote, I do agree with the author’s assertion of there being an intermediate stage, rather than Bickerton’s proposed jump. In fact, we see languages today (polysynthetic) where there are limitations on the level of embedding, with one example being Bininj Gun-wok. We can also stretch the discussion to look at recursion in languages, as Evans and Levinson (2009) demonstrate:

In discussions of the infinitude of language, it is normally assumed that once the possibility of embedding to one level has been demonstrated, iterated recursion can then go on to generate an infinite number of levels, subject only to memory limitations. And it was arguments from the need to generate an indefinite number of embeddings that were crucial in demonstrating the inadequacy of finite state grammars. But, as Kayardild shows, the step from one-level recursion to unbounded recursion cannot be assumed, and once recursion is quarantined to one level of nesting it is always possible to use a more limited type of grammar, such as finite state grammar, to generate it.

The 20th Anniversary of Steven Pinker & Paul Bloom: Natural Language and Natural Selection (1990)

The day before yesterday Wintz mentioned two important birthdays in the field of language evolution (see here): First, Babel’s Dawn turned four, and second, as both Edmund Blair Bolles and Wintz pointed out, Steven Pinker‘s and Paul Bloom‘s seminal paper “Natural Language and Natural Selection” (preprint can be found here) has its 20th anniversary.
Wintz wrote that he planned on writing
“a post on Pinker and Bloom’s original paper, and how the field has developed over these last twenty years, at some point in the next couple of weeks,”
and I thought I’d also offer a short perspective on the paper, by reposting an slightly edited post I wrote on the paper in 2008 (yes I know, I do a lot of reposting of old material, but I’m planning on writing more new stuff as well, I promise 😉 ).
So here we go:

Language and Thought: Joshua Knobe speaks to Lera Boroditsky

Bloggingheads.tv hosts an interesting conversation between experimental philosopher Joshua Knobe and psychologist/linguist Lera Boroditsky (you should know who she is by now). It’s mostly going over the work of Boroditsky, although I thought Knobe did a good job of asking the right questions and taking a back seat when needed:

What can Hungarian Postpositions tell us about Language Evolution?

I spent quite a lot of time as an undergraduate analysing Hungarian syntax with my generative head on and using the minimalist framework. Bear with me. This post is the result of me trying to marry all of them hours spent reading “The Minimalist Program” (Chomsky, 1995) and starring at Hungarian with what I’m currently doing¹ and ultimately trying to convince myself that I wasn’t wasting time.

So here’s a condensed summary of what my dissertation was about:

Hungarian has a massive case system which, as well as structural cases, has many items which have locational, instrumental and relational uses (lexical case markers). Because of this many constructions which feature prepositions in English, when translated into Hungarian can be translated as case markers or postpositions.

It struck me as odd that these 2 things; case markers and postpositions, despite having the same position in the structure (as a right-headed modifier to the noun) and very similar semantic function, would have different analyses in the syntactic framework, simply due to the fact that one was morphologically attached (case markers) and the other not (postpositions).

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New Language and Genetics department

Next week, on the 1st October, there will be a new language and genetics department opening at the Max Planck Institute, the first research department in the world entirely devoted to understanding the relationship between language and genes!!!

This excites me so I wanted to share the news.

This statement is from Simon Fisher, who will head the new department about what they will be trying to achieve:

‘We aim to uncover the DNA variations which ultimately affect different facets of our communicative abilities, not only in children with language-related disorders but also in the general population, and even through to people with exceptional linguistic skills’, says L&G director Simon Fisher. ‘Our work attempts to bridge the gaps between genes, brains, speech and language, by integrating molecular findings with data from other levels of analysis, particularly cell biology and neuro-imaging. In addition, we hope to trace the evolutionary history and worldwide diversity of the key genes, which may shed new light on language origins.’

More signs of the growing and diversifying field of language evolution!

Here’s a link to the news on the MPI website: http://www.mpi.nl/news/new-mpi-department-language-genetics

Language, Thought, and Space (V): Comparing Different Species

ResearchBlogging.org As I’ve talked about in my last posts (see I, II, III, and IV) different cultures employ different coordinate systems or Frames of References (FoR) when talking about space.  FoRs

“serve to specify the directional relationships between objects in space, in reference to a shared referential anchor” (Haun et al. 2006: 17568)

As shown in my last post these linguistic differences seem to reflect certain cognitive differences:

Whether speakers mainly use a relative, ego-based FoR, a cardinal-direction/or landmark-based absolute FoR, or an object-based, intrinsic based FoR, also influences how they solve and conceptualise spatial tasks.

In my last post I also posed the question whether there is a cognitive “default setting” that we and the other great apes inherited from our last common ancestor that is only later overridden by cultural factors. The  crucial question then is which Frame of Reference might be the default one.

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Genetic Anchoring, Tone and Stable Characteristics of Language

In 2007, Dan Dediu and Bob Ladd published a paper claiming there was a non-spurious link between the non-derived alleles of ASPM and Microcephalin and tonal languages. The key idea emerging from this research is one where certain alleles may bias language acquisition or processing, subsequently shaping the development of a language within a population of learners. Therefore, investigating potential correlations between genetic markers and typological features may open up new avenues of thinking in linguistics, particularly in our understanding of the complex levels at which genetic and cognitive biases operate. Specifically, Dediu & Ladd refer to three necessary components underlying the proposed genetic influence on linguistic tone:

[…] from interindividual genetic differences to differences in brain structure and function, from these differences in brain structure and function to interindividual differences in language-related capacities, and, finally, to typological differences between languages.”

That the genetic makeup of a population can indirectly influence the trajectory of language change differs from previous hypotheses into genetics and linguistics. First, it is distinct from attempts to correlate genetic features of populations with language families (e.g. Cavalli-Sforza et al., 1994). And second, it differs from Pinker and Bloom’s (1990) assertions of genetic underpinnings leading to a language-specific cognitive module. Furthermore, the authors do not argue that languages act as a selective pressure on ASPM and Microcephalin, rather this bias is a selectively neutral byproduct. Since then, there have been numerous studies covering these alleles, with the initial claims (Evans et al., 2004) for positive selection being under dispute (Fuli Yu et al., 2007), as well as any claims for a direct relationship between dyslexia, specific language impairment, working memory, IQ, and head-size (Bates et al., 2008).

A new paper by Dediu (2010) delves further into this potential relationship between ASPM/MCPH1 and linguistic tone, by suggesting this typological feature is genetically anchored to the aforementioned alleles. Generally speaking, cultural and linguistic processes will proceed on shorter timescales when compared to genetic change; however, in tandem with other recent studies (see my post on Greenhill et al., 2010), some typological features might be more consistently stable than others. Reasons for this stability are broad and varied. For instance, word-use within a population is a good indicator of predicting rates of lexical evolution (Pagel et al., 2007). Genetic aspects, then, may also be a stabilising factor, with Dediu claiming linguistic tone is one such instance:

From a purely linguistic point of view, tone is just another aspect of language, and there is no a priori linguistic reason to expect that it would be very stable. However, if linguistic tone is indeed under genetic biasing, then it is expected that its dynamics would tend to correlate with that of the biasing genes. This, in turn, would result in tone being more resistant to ‘regular’ language change and more stable than other linguistic features.

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Language, Thought, and Space (IV): Comparing Different Cultures

In my last post on the relationship between language, thought and (thinking and talking about) space I wrote that one of the most interesting, but also one of the most difficult questions is to what extent linguistic differences in talking about space reflect conceptual and perceptual differences.
Researchers at the Max-Planck-Institute for Psycholinguistics (Nijmegen, Netherlands) and at the Max-Planck-Institute for Evolutionary Anthropology (Leipzig, Germany) have done very interesting experiments that shed light on this question
As I mentioned in a previous posts (see here) work done by Stephen Levinson and others on how different cultures talk about and conceptualize space has shown that not all of them employ a bodily, egocentric frame of reference or coordinate system as their dominant organizing principle for their experiences and thoughts. Speakers of “several indigenous languages of Australia, Papua New Guinea, Mexico, Nepal, and south West Africa,” in contrast, organize the axes of their dominant coordinate system by absolute principles such as fixed landmarks (e.g. uphill vs. downhill) or cardinal directions (e.g. move the chair to the north). In addition, there are also langouages that primarily use “intrinsic,” object-centred Frames of Reference, such as in “The dog is at the front of the library.”
Differences between Relative and Absolute Speakers in Non-linguistic Spatial Tasks
In a set of clever experiments Levinson and his colleagues have also shown that speakers of relative and absolute languages differ in how they solve non-linguistic spatial tasks.

Language, Thought and Space (III): Frames of Reference in Language and Cognition

In the second chapter of his 2003 book Space in Language and Cognition: Explorations in Cognitive Diversity, Stephen Levinson discusses a concept that has been crucial to discussions of space and ‘perspectivation’ in language: frames of reference. (see e.g. these posts on my blog Shared Symbolic Storage) The term as it is used today was coined by Gestalt theorists of perception in the 1920s and was used to signify the steady and constant background against which other objects could be made out and identified. It can be defined as
“‘a unit or organization of units that collectively serve to identify a coordinate system with respect to which certain properties of objects, including the phenomenal self, are gauged’ (Rock 1992: 404, emphasis in Levinson 2003: 24).

Language and Complexity: Evolution Inside Out

Here is a video of Terrence Deacon, someone who needs no introduction on this website, giving a talk at Irving K. Barber Learning Centre about his latest research into language evolution:

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