Sean Roberts

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  • August 21, 2010
  • 01:56 PM
  • 2,343 views

Evolution of Colour Terms: 5 Cultural Constraints

by Sean Roberts in A Replicated Typo 2.0

Continuing my series on the Evolution of Colour terms, this post reviews studies of cultural constraints on colour naming. For the full dissertation and for references, go here.

This section reviews evidence of cultural constraints on colour terms.  Modelling has shown that cultural transmission can cause individual categorisations of colour space to converge on shared categories, . . . → Read More: Evolution of Colour Terms: 5 Cultural Constraints... Read more »

  • December 14, 2011
  • 07:48 AM
  • 1,178 views

The power of diversity: New Scientist recognises the growing work on social structure and linguistic structure

by Sean Roberts in A Replicated Typo 2.0

A feature article in last week’s New Scientist asks why there is so much linguistic diversity present in the world, and what are the forces that drive it. The article reads like a who’s who of the growing field of language structure and social structure. This is practically as close as my subject will come to having a pull-out section in Vanity Fair. Furthermore, it recognises the weakening grip of Chomskyan linguistics.... Read more »

David Robson. (2011) Power of Babel: Why one language isn't enough . New Scientist. info:/

  • August 19, 2010
  • 06:00 AM
  • 1,172 views

Evolution of Colour Terms: 3 Perceptual Constraints

by Sean Roberts in A Replicated Typo 2.0

Continuing my series on the Evolution of Colour terms, this post reviews evidence for perceptual constraints on colour terms. For the full dissertation and for references, go here.

The perceptual space that results from the processing of opponent colours is non-uniform (see Figure below), meaning that there are optimal ways to describe it (Jameson & D’Andrade, . . . → Read More: Evolution of Colour Terms: 3 Perceptual Constraints... Read more »

  • August 25, 2010
  • 05:26 AM
  • 1,150 views

Niche Construction in Colour Term Evolution

by Sean Roberts in A Replicated Typo 2.0

Language’s influence on perception can be regarded as a form of Niche Construction. The words we have for colours affects the way in which we co-operate with others to change the world. Therefore, not only does language become better at describing the environment, but the environment becomes better suited to being described by language.... Read more »

Laland, K., Odling-Smee, J., & Feldman, M. (2000) Niche construction, biological evolution, and cultural change. Behavioral and Brain Sciences, 23(1), 131-146. DOI: 10.1017/S0140525X00002417  

Hansen, T., Olkkonen, M., Walter, S., & Gegenfurtner, K. (2006) Memory modulates color appearance. Nature Neuroscience, 9(11), 1367-1368. DOI: 10.1038/nn1794  

Heslop-Harrison, J., & Schwarzacher, T. (2007) Domestication, Genomics and the Future for Banana. Annals of Botany, 100(5), 1073-1084. DOI: 10.1093/aob/mcm191  

Griffin, L. (2004) Optimality of the Basic Colours Categories. Journal of Vision, 4(8), 309-309. DOI: 10.1167/4.8.309  

  • September 24, 2010
  • 07:39 AM
  • 1,116 views

Alcohol Consumption affects Morphological Complexity

by Sean Roberts in A Replicated Typo 2.0

Recent research suggests that language adapts to the balance between declarative and procedural memory users. Since alcohol consumption affects procedural but not declarative memory (Smith & Smith, 2003), we might expect to see communities that have a high alcohol consumption using less complex morphology...... Read more »

  • March 18, 2011
  • 08:27 AM
  • 1,064 views

Emergence of linguistic diversity in the lab

by Sean Roberts in A Replicated Typo 2.0

I propose an experiment based on a theory from Nettle (1999) and an experimental paradigm by Roberts (2010) to look at the emergence of stable bilingualism.... Read more »

  • August 16, 2010
  • 10:26 AM
  • 1,002 views

The Evolution of Colour terms

by Sean Roberts in A Replicated Typo 2.0

In a series of posts, I’ll review the current state of the field of the Evolution of Colour Categories. It has been argued that universals in colour naming across cultures can be traced back to constraints from many domains including genetic, perceptual and environmental. I’ll review these arguments and show that if our perception is affected by our language, then many conflicts can be resolved.... Read more »

Mollon, J. (1999) Color vision: Opsins and options. Proceedings of the National Academy of Sciences, 96(9), 4743-4745. DOI: 10.1073/pnas.96.9.4743  

Regier, T., Kay, P., & Khetarpal, N. (2007) Color naming reflects optimal partitions of color space. Proceedings of the National Academy of Sciences, 104(4), 1436-1441. DOI: 10.1073/pnas.0610341104  

Griffin, L. (2004) Optimality of the Basic Colours Categories. Journal of Vision, 4(8), 309-309. DOI: 10.1167/4.8.309  

Regier T, & Kay P. (2004) Color naming and sunlight: commentary on Lindsey and Brown (2002). Psychological science : a journal of the American Psychological Society / APS, 15(4), 289. PMID: 15043652  

  • August 26, 2010
  • 04:26 AM
  • 997 views

Universal Patterns in Colour Terms are not Evidence for Innate Constraints

by Sean Roberts in A Replicated Typo 2.0

In a series of posts, I've been discussing constraints on the evolution of colour terms. Here, I discuss the role of drift and argue that universal patterns are not necessarily good evidence for innate constraints.... Read more »

  • November 19, 2010
  • 06:04 AM
  • 996 views

Mutual Exclusivity in the Naming Game

by Sean Roberts in A Replicated Typo 2.0

The Naming Game looks at how communication systems evolve in populations of agents. In this post I’ll show that the algorithms used have implicit mutual exclusivity biases, which favour monolingual viewpoints. I’ll also show that this bias is not necessary and obscures some interesting insights into evolutionary dynamics of langauge.... Read more »

Andrea Baronchelli. (2010) Do you agree? Role of feedback and broadcasting in the Naming Game. ArXiv e-prints. arXiv: 1009.4798v1

Vittorio Loreto, Andrea Baronchelli, & Andrea Puglisi. (2009) Mathematical Modeling of Language Games . Evolution of Communication and Language in Embodied Agents. DOI: 10.1007/978-3-642-01250-1_15  

  • August 24, 2010
  • 05:00 AM
  • 943 views

Evolution of Colour Terms: 8 Embodied Relationships

by Sean Roberts in A Replicated Typo 2.0

In a series of  posts, I’ve been discussing constraints on the evolution of colour terms.  In the last post, I discussed Perceptual Warping.  Here, a further adjustment to the assumptions about perceptual space is suggested.
The assumption that all perceptual spaces are the same may be unrealistic and may favour Universalism (see Levinson, 2000).  To begin with, . . . → Read More: Evolution of Colour Terms: 8 Embodied Relationships... Read more »

Levinson, S. (2000) Yeli Dnye and the Theory of Basic Color Terms. Journal of Linguistic Anthropology, 10(1), 3-55. DOI: 10.1525/jlin.2000.10.1.3  

Bornstein, M., Kessen, W., & Weiskopf, S. (1976) Color vision and hue categorization in young human infants. Journal of Experimental Psychology: Human Perception and Performance, 2(1), 115-129. DOI: 10.1037/0096-1523.2.1.115  

Roberson, D., Davidoff, J., Davies, I., & Shapiro, L. (2004) The Development of Color Categories in Two Languages: A Longitudinal Study. Journal of Experimental Psychology: General, 133(4), 554-571. DOI: 10.1037/0096-3445.133.4.554  

  • August 24, 2010
  • 07:35 AM
  • 884 views

Perceptual Warping of Colour

by Sean Roberts in The Adventures of Auck

There is evidence that categorisations can influence perception, which has been identified as a crucial argument for Relativism. In this post, the idea of perceptual warping is explained and applied to colour categorisation.... Read more »

DEBOER, B. (2000) Self-organization in vowel systems. Journal of Phonetics, 28(4), 441-465. DOI: 10.1006/jpho.2000.0125  

Goldstone, R. (1994) Influences of categorization on perceptual discrimination. Journal of Experimental Psychology: General, 123(2), 178-200. DOI: 10.1037//0096-3445.123.2.178  

Miyawaki, K., Strange, W., Verbrugge, R. R., Liberman, A. M., Jenkins, J. J., & Fujimura, O. (1975) An effect of linguistic experience: The discrimination of (r) and (l) by native speakers of Japanese and English . Perception and Psychophysics, 331-340. info:/

  • April 8, 2011
  • 10:02 AM
  • 864 views

Colour terms and national flags

by Sean Roberts in A Replicated Typo 2.0

Today, I wondered whether the number of basic colour terms a language has is reflected in the number of colours on its country’s flag. The idea being that a country’s flag contains colours that are important to its society, and therefore a country with more social tools for discussing colour (colour words) will be more likely to put more colours on its flag. It was a long shot, but here’s what I found:... Read more »

  • January 11, 2010
  • 09:46 AM
  • 847 views

Mutual Exclusivity Diagrams

by Sean Roberts in The Adventures of Auck

Some diagrams of experiments into the Mutual Exclusivity bias in children's word learning.... Read more »

  • May 18, 2011
  • 01:00 PM
  • 843 views

The end of Universals?

by Sean Roberts in The Adventures of Auck

Dunn et al. (2011) has come in for a lot of flack, but are the differences in dependencies between language families really all that different?... Read more »

Michael Dunn,, Simon J. Greenhill,, Stephen C. Levinson, & . (2011) Evolved structure of language shows lineage-specific trends in word-order universals. Nature, 79-82. info:/

  • May 6, 2011
  • 04:38 AM
  • 837 views

Bayesian phylogenetic analysis of Japonic languages

by Sean Roberts in A Replicated Typo 2.0

Lee & Hasagawa (2011) use phylogenetic methods to trace the origins of Japonic languages and dialects.... Read more »

  • June 15, 2011
  • 12:15 AM
  • 835 views

Cultural Evolution and the Impending Singularity

by Sean Roberts in A Replicated Typo 2.0

Prof. Alfred Hulber is an actual mad professor who is a danger to life as we know it. In a talk this evening he went from ball bearings in castor oil to hyper-advanced machine intelligence. However, will hyper-intelligent machines actually give us a better scientific understanding of the universe, or will they just spend their time playing tetris?... Read more »

Sperl, M., Chang, A., Weber, N., & Hübler, A. (1999) Hebbian learning in the agglomeration of conducting particles. Physical Review E, 59(3), 3165-3168. DOI: 10.1103/PhysRevE.59.3165  

Bettencourt LM, Lobo J, Helbing D, Kühnert C, & West GB. (2007) Growth, innovation, scaling, and the pace of life in cities. Proceedings of the National Academy of Sciences of the United States of America, 104(17), 7301-6. PMID: 17438298  

Chater N, & Christiansen MH. (2010) Language acquisition meets language evolution. Cognitive science, 34(7), 1131-57. PMID: 21564247  

  • June 26, 2011
  • 04:50 PM
  • 832 views

A random walk model of linguistic complexity

by Sean Roberts in A Replicated Typo 2.0

Large-scale statistical analyses of linguistic typologies (e.g. Lupyan & Dale, 2010) have poor temporal resolution. A correlation between two variables that exists now may be an accident of more complex dynamics. I discuss a random walk model that tries to estimate the probability that a current correlation is dynamically unstable.... Read more »

  • August 18, 2010
  • 01:07 PM
  • 828 views

Metroculturalism

by Sean Roberts in A Replicated Typo 2.0

Recent activity in academia and the blogosphere has been encouraging scientists and everyday people to get out of the mono-mindset. Is monolingualism a legitimate abstraction for scientists or is bilingualism a fundamental part of language?... Read more »

Otsuji, E., & Pennycook, A. (2010) Metrolingualism: fixity, fluidity and language in flux. International Journal of Multilingualism, 7(3), 240-254. DOI: 10.1080/14790710903414331  

  • January 13, 2011
  • 07:49 AM
  • 797 views

Dog exhibits mutual exclusivity bias

by Sean Roberts in A Replicated Typo 2.0


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Pilley & Reid (2010) describe an experiment where a border collie was trained to learn proper nouns for objects.  After 3 years of training, the dog had learned over 1,000 proper names and showed no sign of slowing.  Experiments were run to test whether the dog understood the difference between nouns and commands and whether the . . . → Read More: Dog exhibits mutual exclusivity bias... Read more »

  • August 4, 2011
  • 03:42 AM
  • 796 views

The Bilingual paradox in Language Evolution: Top down versus bottom up approaches

by Sean Roberts in A Replicated Typo 2.0

Children are adept at learning more than one language at a time and there are many bilingual societies in the world. However, pressures on memory and redundancy makes it unclear what the adaptive advantage of a cognitive capacity for learning multiple languages at an early stage of language evolution would be. How can we account for the evolution of this ability? Would an early population of language users most likely be monolingual or bilingual?... Read more »

David Burkett,, & Tom Griffiths. (2010) Iterated Learning of Multiple Languaged from Multiple Teachers. The Evolution of Language: Proceedings of EvoLang 2010. info:/

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