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Contact Information


Visit Ansgar Endress

D210, Rhind Building

Postal Address

City, University of London
Northampton Square
United Kingdom



Dr Ansgar Endress trained as a generalist engineer at École Polytechnique and obtained a doctorate in Cognitive Science from the École des Hautes Études en Sciences Sociales. Before joining City University London, he has been a post-doctoral fellow at the International School for Advanced Studies, Harvard University and the Massachusetts Institute of Technology. He is also a visiting researcher at Universitat Pompeu Fabra, Barcelona.

Dr Endress studies the psychological mechanisms involved in language acquisition and use. He is particularly interested in evolutionarily ancient perceptual and memory mechanisms, and how they support a diverse set of computations in language acquisition. More generally, he is interested in reducing complex cognitive phenomena to basic psychological mechanisms in domains ranging from memory processing to theory of mind.


Research interests

- Language
- Learning
- Language acquisition and cognitive development
- Perception and memory
- Evolutionary psychology



  1. Mehler, J., Endress, A.D., Gervain, J. and Nespor, M. (2008). From perception to grammar. In Friederici, A.D. and Thierry, G. (Eds.), Early Language Development: Bridging Brain and Behaviour (pp. 191–213). John Benjamins.

Journal articles (37)

  1. Endress, A.D. (2020). A Simple, Biologically Plausible Feature Detector for Language Acquisition. Journal of Cognitive Neuroscience, 32(3), pp. 435–445. doi:10.1162/jocn_a_01494.
  2. Endress, A.D. (2019). Duplications and domain-generality. Psychological Bulletin, 145(12), pp. 1154–1175. doi:10.1037/bul0000213.
  3. Webb, R., Ayers, S. and Endress, A. (2018). The City Infant Faces Database: A validated set of infant facial expressions. Behavior Research Methods, 50(1), pp. 151–159. doi:10.3758/s13428-017-0859-9.
  4. Endress, A.D., Korjoukov, I. and Bonatti, L.L. (2017). Category-based grouping in working memory and multiple object tracking. Visual Cognition, 25(9-10), pp. 868–887. doi:10.1080/13506285.2017.1349229.
  5. Endress, A.D. and Szabó, S. (2017). Interference and memory capacity limitations. Psychological Review, 124(5), pp. 551–571. doi:10.1037/rev0000071.
  6. Gervain, J. and Endress, A.D. (2017). Learning multiple rules simultaneously: Affixes are more salient than reduplications. Memory & Cognition, 45(3), pp. 508–527. doi:10.3758/s13421-016-0669-9.
  7. Endress, A.D. and Langus, A. (2017). Transitional probabilities count more than frequency, but might not be used for memorization. Cognitive Psychology, 92, pp. 37–64. doi:10.1016/j.cogpsych.2016.11.004.
  8. Endress, A.D. and Siddique, A. (2016). The cost of proactive interference is constant across presentation conditions. Acta Psychologica, 170, pp. 186–194. doi:10.1016/j.actpsy.2016.08.001.
  9. Endress, A. and Katzir, R. (2016). Linguistics, cognitive psychology, and the now-or-never bottleneck. Behavioral and Brain Sciences, 39. doi:10.1017/S0140525X15000953.
  10. Endress, A.D. and Bonatti, L.L. (2016). Words, rules, and mechanisms of language acquisition. Wiley Interdisciplinary Reviews: Cognitive Science, 7(1), pp. 19–35. doi:10.1002/wcs.1376.
  11. Endress, A.D. and Potter, M.C. (2014). Something from (almost) nothing: buildup of object memory from forgettable single fixations. Attention, Perception, & Psychophysics, 76(8), pp. 2413–2423. doi:10.3758/s13414-014-0706-3.
  12. Kovács, Á.M. and Endress, A.D. (2014). Hierarchical Processing in Seven-Month-Old Infants. Infancy, 19(4), pp. 409–425. doi:10.1111/infa.12052.
  13. Endress, A.D. and Potter, M.C. (2014). Large capacity temporary visual memory. Journal of Experimental Psychology: General, 143(2), pp. 548–565. doi:10.1037/a0033934.
  14. Endress, A.D. (2014). How are Bayesian models really used? Reply to Frank (2013). Cognition, 130(1), pp. 81–84. doi:10.1016/j.cognition.2013.09.003.
  15. Endress, A.D. (2013). Bayesian learning and the psychology of rule induction. Cognition, 127(2), pp. 159–176. doi:10.1016/j.cognition.2012.11.014.
  16. Endress, A.D. and Potter, M.C. (2012). Early conceptual and linguistic processes operate in independent channels. Psychological Science, 23(3), pp. 235–245.
  17. Endress, A.D. and Hauser, M.D. (2011). The influence of type and token frequency on the acquisition of affixation patterns: Implications for language processing. Journal of Experimental Psychology: Learning, Memory, and Cognition, 37(1), pp. 77–95. doi:10.1037/a0020210.
  18. Endress, A.D. and Wood, J.N. (2011). From movements to actions: Two mechanisms for learning action sequences. Cognit Psychol, 63, pp. 141–171.
  19. Hochmann, J.-.R., Endress, A.D. and Mehler, J. (2010). Word frequency as a cue for identifying function words in infancy. Cognition, 115(3), pp. 444–457. doi:10.1016/j.cognition.2010.03.006.
  20. Endress, A.D., Carden, S., Versace, E. and Hauser, M.D. (2010). The apes’ edge: positional learning in chimpanzees and humans. Animal Cognition, 13(3), pp. 483–495. doi:10.1007/s10071-009-0299-8.
  21. Endress, A.D. and Mehler, J. (2010). Perceptual Constraints in Phonotactic Learning. J Exp Psychol Hum Percept Perform, 36, pp. 235–250.
  22. Kovács, A.M., Téglás, E. and Endress, A.D. (2010). The social sense: susceptibility to others' beliefs in human infants and adults. Science, 330(6012), pp. 1830–1834.
  23. Endress, A.D. and Hauser, M.D. (2010). Word segmentation with universal prosodic cues. Cognitive Psychology, 61(2), pp. 177–199.
  24. Endress, A.D. (2010). Learning melodies from non-adjacent tones. Act Psychol, 135, pp. 182–190.
  25. Endress, A.D. and Mehler, J. (2009). Primitive computations in speech processing. Q J Exp Psychol, 62, pp. 2187–2209.
  26. Endress, A.D. and Hauser, M.D. (2009). Syntax-induced pattern deafness. Proceedings of the National Academy of Sciences of the United States of America, 106(49), pp. 21001–21006.
  27. Endress, A.D., Cahill, D., Block, S., Watumull, J. and Hauser, M.D. (2009). Evidence of an evolutionary precursor to human language affixation in a nonhuman primate. Biology Letters, 5(6), pp. 749–751.
  28. Endress, A.D., Nespor, M. and Mehler, J. (2009). Perceptual and memory constraints on language acquisition. Trends in Cognitive Sciences, 13(8), pp. 348–353.
  29. Endress, A.D. and Mehler, J. (2009). The surprising power of statistical learning: When fragment knowledge leads to false memories of unheard words. Journal of Memory and Language, 60(3), pp. 353–369.
  30. Endress, A.D. and Mehler, J. (2009). The surprising power of statistical learning: When fragment knowledge leads to false memories of unheard words. J Mem Lang, 60, pp. 351–367.
  31. Versace, E., Endress, A.D. and Hauser, M.D. (2008). Pattern recognition mediates flexible timing of vocalizations in nonhuman primates: experiments with cottontop tamarins. Animal Behaviour, 76(6), pp. 1885–1892. doi:10.1016/j.anbehav.2008.08.015.
  32. TORO, J.M., SHUKLA, M., NESPOR, M. and ENDRESS, A.D. (2008). The quest for generalizations over consonants: Asymmetries between consonants and vowels are not the by-product of acoustic differences. Perception & Psychophysics, 70(8), pp. 1515–1525. doi:10.3758/pp.70.8.1515.
  33. Endress, A.D., Dehaene-Lambertz, G. and Mehler, J. (2007). Perceptual constraints and the learnability of simple grammars. Cognition, 105(3), pp. 577–614.
  34. Endress, A.D. and Bonatti, L.L. (2007). Rapid learning of syllable classes from a perceptually continuous speech stream. Cognition, 105, pp. 247–299.
  35. Endress, A.D., Scholl, B.J. and Mehler, J. (2005). The role of salience in the extraction of algebraic rules. J Exp Psychol Gen, 134, pp. 406–19.
  36. Endress, A. and Szabo, S. Sequential presentation protects working memory from catastrophic interference. Cognitive Science.
  37. Endress, A., Slone, L.K. and Johnson, S.P. Statistical learning and memory. Cognition.


  1. Endress, A.D. Limitations perceptives et repr�sentationnelles des computations symboliques mentales. (PhD Thesis)