Dr. Derya Cokal
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I am currently a postdoctoral researcher in the Prominence in Language project at the University of Cologne, Germany. I'm working with Prof. Klaus Von Heusinger. We are investigating referential and conceptual activation in the processing of referential expressions in discourse. This is a great experience for me because SFB, funding, will provide me an opportunity to collaborate with leading professors in the clinical research and EEG field. This project is a great opportunity to increase the diversity of my research experiences.

I have just  completed a three-year position as a postdoctoral research associate with the DALI (Disagreements and Language Interpretation) project at Queen Mary University of London. Working with Prof. Massimo Poesio, I have been investigating disagreements on anaphoric expressions and whether anaphoric references are resolved in natural-language processing.  I have benefited greatly from the opportunity to work with computational linguists, machine-learning experts and game designers in seeking to better understand whether natural language expressions are always unambiguous in context.


I have been working on language usage of people with schizophrenia, their relatives and healthy comparator subjects (See Psychosis and Language Study [PaLS] below). In a new project (Spring 2019), I’m collaborating with Prof. Wolfram Hinzen & Dr. Emre Bora to examine the language use of Turkish patients with schizophrenia, their relatives and healthy comparator subjects. In addition, with Dr. Stuart Watson & Dr. Sinead Mullally (Institute of Neuroscience at Newcastle University) I am investigating emotional neglect and its impact on language use and hippocampus function.

Before my DALI post, I was a post-doctoral researcher at Durham University and the Institute of Neuroscience at the University of Newcastle, UK, where I worked with Prof. Wolfram Hinzen on PaLS, which was funded by the Arts and Humanities Research Council. This project investigated language usage of people with schizophrenia, their relatives, and healthy comparator subjects. We sought to understand this disorder in order to allow the development of effective cognitive behaviour therapy for people with psychotic disorders. It was an exciting international collaboration of linguists, psycholinguists, philosophers, and psychiatrists.  

In addition to the above-mentioned partnerships, I continue to collaborate with Prof. Fernanda Ferreira of the University of California, Davis on the processing of anaphora and sentence disfluencies, Dr. Patrick Sturt of Edinburgh University on anaphora processing in written discourse, and with Prof. Ted Sanders and Prof. Deniz Zeyrek on a Textlink project on that 
explores subjectivity in Turkish causal connectives. 

My PhD training – during which I investigated deixis and sentence processing – involved a dual-university collaboration between the Middle East Technical University (METU), Ankara, Turkey and Edinburgh University. After obtaining my PhD, I was a post-doctoral researcher at the Institute for Mind and Brain at the University of South Carolina (USC) and University of California, Davis (UCD), working with Prof. Fernanda Ferreira. 


Please scroll down to see details of my recent publications. You can also contact me by email.

Publications

Çokal, D., Claudio, P.F., Ture-Abaci, O., Yalcin, B., Bora, E., & Hinzen, W. (in press). Referential noun phrases distribute differently in Turkish speakers with schizophrenia. Schizophrenia Research. 

Çokal, D., & Sturt, P., (2022). The real-time status of strong and weak islands. PLOS ONE. 

Çokal, D., Sturt, P., & Ferreira, F. (2021). Processing of discourse anaphors by L2 speakers of English. Dialogue and Discourse, 12(2), 38-80.

​Schroeder, K., Durrleman, S., Çokal, D., Delgado, S.A., Marin, A.M., & Hinzen, W. (2021). Relations between intentionality, theory of mind, and 
complex syntax in autism spectrum conditions and typical development. Cognitive Development.

Poesio, M., Yu, j., Paun, S., 
Çokal, D., Aloraini, A, & Haber, J. (in press). Computational Models of Anaphora. Annual Review of Linguistics.

Çokal, D., Zeyrek, D., & Sanders, T. J. M. (2020). Subjectivity and objectivity in Turkish causal connectives? The results from a first corpus
study on 
çünkü and için. In Zeyrek, D. &  Özge, U. (Eds.) Discourse structure and meaning: the view from Turkish (pp.223-247). de Gruyter Mouton: Trends in Linguistics.

Little, B., Gallagher, P., Zimmerer, V., Varley, R., Douglas, M., Spencer, H., Çokal, D., Deamer, F., Turkington, D., Ferrier, N., Varley, R., Hinzen, W., & Watson, S. (2019). Language in Schizophrenia and Aphasia: the relationship with non-verbal cognition and thought disorder. Cognitive Neuropsychiatry, 389-405.

Çokal, D., Zimmerer, V., Turkington, D.,  Ferrier, N., Varley, R., Watson, S. & Hinzen, W. (2019). Disturbing the rhythm of thought: speech pausing patterns in schizophrenia, with and without formal thought disorder. PLOS ONE.journals.plos.org/plosone/article?id=10.1371/journal.pone.0217404

Çokal, D. (2019). Discourse Deixis and Anaphora in L2 Writing. Dilbilim Araştırmaları, 241-277. Boğaziçi Üniversitesi Yayınevi, İstanbul. 

Çokal, D.,  Zimmerer, V., Varley, R., Watson, S. & Hinzen, W. (2019). Comprehension of embedded clauses in schizophrenia with and without formal thought disorder. Journal of Nervous and Mental Disease, 207 (5), 384-392. 
journals.lww.com/jonmd/Fulltext/2019/05000/Comprehension_of_Embedded_Clauses_in_Schizophrenia.12.aspx

Çokal, D., Sevilla, G., Jones, W.S., Zimmerer, V.,  Deamer, F.,  Douglas, M., Spencer, H., Turkington, D.,  Ferrier, N., Varley, R., Watson, S. & Hinzen, W. (2018). The Language Profile of Formal Thought Disorder. npj: schizophrenia -Nature subgroup. 
www.nature.com/articles/s41537-018-0061-9
.

Çokal, D., Sturt, P. & Ferreira, F. (2018). L2 referent representation in processing and production. Proceedings of the 40th Annual Conference of Cognitive Science Society.

Çokal, D., & Sturt, P. (2017). The effect of referring expression on antecedent-grouping choice in plural reference resolution. Discourse Processes. In honor of Tony Sanford. .pdf

Çokal, D., Sturt, P., & Ferreira, F. (2016). Processing of It and This in Written Narrative Discourse. Discourse Processes. pdf

Ferreira, F. &  Çokal, D. (2015). Sentence Processing. In G. Hickok, & S. Small (Eds.). Neurobiology of Language. Elsevier. .pdf

Çokal, D., Sturt, P., & Ferreira, F. (2014). Deixis:  This and That in Written Narrative Discourse. Discourse Processes, 51(3), 201-229. .pdf

Çokal, D. (2012). The Online and Offline Processing of This, That and It by native speakers of English and by Turkish non-native speakers of English. (Unpublished doctoral dissertation). Middle East Technical University. Ankara. 

Çokal, D. (2010). A New Look at Discourse Deixis: A contrastive Analysis. VDM publisher. 
 

Çokal, D. (2010). The Pronominal bu-şu and this-that: Rhetorical Structure Theory. Dilbilim Araştırmaları, 1, 15-33. Boğaziçi Üniversitesi Yayınevi, İstanbul. .pdf

Çokal, D. (2009). Conversational Repair in Foreign Language Classrooms: A Case Study in a Turkish Context. Eurasian Journal of Educational Research. Issue 38. Winter 2009, 17-3.

Ruhi, Ş., & Çokal, D. (2009) Features for an internet accessible corpus of spoken Turkish discourse. Working Papers in Corpus-based Linguistics and Language Education 3.

Ruhi, S., Hatipoğlu, Ç., Eröz-Tuğa, B., Işık-Güler, H., Acar, G., Eryılmaz, K., Can, H., Karakaş, Ö., & Çokal, D. (2010). Sustaining a Corpus for Spoken Turkish Discourse: Accessibility and Corpus Management Issues. Language Resources: From Storyboard to Sustainability and LR Lifecycle Management, Language Resources and Evaluation Conference, LREC, University of Malta, 17-24 May (pp. 44-48). .pdf 

Ruhi, S., Işık-Güler, H., Hatipoğlu, Ç., Eröz-Tuğa, B., & Çokal, D. (2010). Achieving Representatives Through the Parameters of Spoken Language and Discursive Features: The Case of the Spoken Turkish Corpus. In I. Moskowich-Spiegel Fandiño. B. Crespo Garcia, I. and Larei Martin (Eds). Language Windowing Through Corpora. Visualizacion del lenguaje a traves de corpus. Part II (pp. 798-799). Universidade da Coruna. .pdf

Kiliçkaya, F. & Çokal, D. (2009). The Effect of Note-taking on University Students Listening Comprehension of Lectures. Kastamonu Eğitim Dergisi, 17(1), 47-56.

Ruhi, Ş. & Çokal, D.  (2008). Türkçe  İçin Sözlü Derlem Oluşturmada Bazı Temel Sorular (Trans. Of the title: Major Questions In Designing A Spoken Corpus of Turkish). Mersin Sempozyumu  Bildiri Kitapçığı, Mersin University, 19-22, October,  (pp. 553-560),  Mersin.

Çokal, D. (2007). Konuşma Dilinde İşte’nin Bilişsel Edimbilim Işığında İşlevlerinin Çözümlemesi (Trans. of the title: Analysis of the cognitive pragmatic functions of işte in spoken language).  21. Ulusal Dilbilim Kurultay Bildirileri, Mersin University, 10-13, May (pp. 46-56), Mersin.    

Awards and Projects

2014 Texlink (Cost Project) http://textlinkcost.wix.com/textlink

2013 Middle East Technical University PhD Prize    

2009  UBITAK-ULAKBIM International Publication Award

SOBAG 2009-2011  (with Prof. Sukriye Ruhi) Turkish National Science Foundation project, An Experimental Psycholinguistic Investigation of Discourse Deictic Demonstratives and Discourse Connectives In Turkish And English As Native And Non-Native Languages, Project No: 108K405.

ODT-STD Oct 2008-Jan 2009  (with a team under the supervision of Prof. Sukriye Ruhi) Turkish National Science Foundation project, METU Turkish Spoken Corpus, Project No: 108K283. 

Conferences

Çokal, D., Sevilla, G., Jones, W., Watson, S., Turkington, D., Ferrier, N, & Hinzen, W. (2017). Referential deficits as a clinical marker of Formal Thought Disorder. The BPS Cognitive Psychology Conference, Newcastle. 

Çokal, D., Sevilla, G., Jones, W., Watson, S., Turkington, D., Ferrier, N, & Hinzen, W. (2017). Dysfluency profiles in schizophrenia patients with and without formal though disorder and healthy controls. The BPS Cognitive Psychology Conference, Newcastle.

Richardson, C., Bailey, O., Hinzen, W., Cokal, D., Jones, W., & Watson, S. (2016). Pauses in the speech profile of Schizophrenia. Poster at Faculties of Child & Adolescent Psychiatry and General Adult Psychiatry Annual Conference, Birmingham, October, 6-7. 

Kat, J., Cokal, D., Jones, W., Douglas, M., Zimmerer, V., Hinzen, W, Watson, S. (2016). Inferring information in schizophrenia: Evidence from a compic strip narration task. Poster at Faculties of Child & Adolescent Psychiatry and General Adult Psychiatry Annual Conference, Birmingham, October, 6-7. 

Çokal, D., Zeyrek, D., & Sanders, T. (2016). Causal Categories in Turkish connectives; First Results From a Corpus Study and a Judgement Task. Paper at the 3rd Linguistic  & Psycholinguistic Approaches to Text Structuring (LPTS), Valencia, January, 24-26.

Çokal, D., Sturt, P., & Ferreira, F. (2015). Online Focus Processing By Non-native Readers. Poster at the 21st Annual Conference on Architectures and Mechanisms for Language Processing (AMLaP), University of Malta, 3-5 September, Malta.

Çokal, D., & Ferreira, F. (2015). A Noisy Channel Approach to Misuse of Pronouns. Poster at the 21st Annual Conference on Architectures and Mechanisms for Language Processing (AMLaP), University of Malta, 3-5 September, Malta.

Çokal, D., & Ferreira, F. (2015). Noisy Input- Its Impact on Online Processing by Native and Non-native Language Users. Poster at the 21st Annual Conference on Architectures and Mechanisms for Language Processing (AMLaP), University of Malta, 3-5 September, Malta.

Çokal, D., & Ferreira, F. (2015). Online Processing of Noisy Input from Native and Non-native Language Users. Poster presented at the 28th Annual Conference on Human Sentence Processing (CUNY), University of Southern California, 19-21 March, Los Angeles, CA.

Çokal, D., Sturt, P., & Ferreira, F. (2015). NP status in the establishment of focus and processing of anaphors. Poster presented at the 28th Annual Conference on Human Sentence Processing (CUNY), University of Southern California, 19-21 March, Los Angeles, CA.

Çokal, D., Sturt, P., & Ferreira, F. (2015).  Non-Natives’ Online Processing of focus. Poster presented at the 28th Annual Conference on Human Sentence Processing (CUNY), University of Southern California, 19-21 March, Los Angeles, CA.

Çokal, D., Sturt, P., & Ferreira, F. (2015). Processing of Focus by Non-Native  Readers. Bi-annual Generative Approaches to Language Acquisition. University of Maryland, February 19-21, Maryland, USA.

Çokal, D., Sturt, P. & Ferreira, F. (2014). Processing of focus by non-native readers. Poster presented at the Generative Approaches to Language Acquisition (GALANA), University of Maryland, 19-21 February, United States.

Çokal, D., Sturt, P. & Ferreira, F. (2014). NP status in the establishment of focus and processing of anadeixis. Poster presented at the 20th Annual Conference on Architectures and Mechanisms for Language Processing (AMLaP), University of Edinburgh, 3-5 September, Edinburgh, UK.

Çokal, D.  Sturt, P., & Ferreira, F. (2013). Deixis Processing of L1 and L2 in Written Discourse. Poster presented at the 19th Annual Conference on Architectures and Mechanisms for Language Processing (AMLaP), Aix-Marseille University, 2-4 September, Marseille, France.

Çokal, D., Sturt, P., & Ferreira, F. (2012). Anaphora Processing of Native and Turkish Non-native Speakers of English: It and This. Poster Presented at the 18th Annual Conference on Architectures and Mechanisms for Language Processing (AMLaP), University of Trento, 6-8 September, Italy.

Çokal, D., Sturt, P., Ruhi, Ş., & Ferreira, F. (2011). Anaphora Processing: The Foci of It and This. Poster presented at the 17th Annual Conference on Architectures and Mechanisms for Language Processing (AMLaP), 1-3 September, Paris, France.

Çokal, D., Sturt, P., Ruhi, S., &Ferreira, F. (2011). Anaphora Processing in Written Discourse: 'it' and 'this'. Poster presented at the 24th Annual Conference on Human Sentence Processing (CUNY), Stanford University, 24-26 March, Palo Alto, CA.

Çokal, D., Sturt, P., Ferreira, F., & Ruhi, Ş. (2010). Discourse Deixis in Narrative Discourse. Paper presented at PIF Conference, Ghent, Belgium. 

Çokal, D., Sturt, P., Ruhi, Ş., & Ferreira, F. (2010). This and That: Left and Right Frontier Deictic Access in Written Discourse. Poster presented at the 16th Annual Conference on Architectures and Mechanisms for Language Processing (AMLaP), The University of York, 6-9, September, York, UK.

Ruhi, Ş. H., Hatipoğlu, Ç., Eröz-Tuğa, B., and Çokal- Karadas, D. (2010). Achieving Representativeness Through the Parameters of Spoken Language and Discursive Features: The Case of the Spoken Turkish Corpus. Paper presented at  II International Conference on Corpus Linguistics (CILC-10), Universidade da Coruña, 13-15 May, Spain.

Ruhi, Ş. Eröz-Tuğa, B., Hatipoğlu, Ç., Işık-Güler, H., Acar, G. C., Eryılmaz, K., Can, H., Karakaş, Ö., & Çokal- Karadas, D. (2010). Sustaining a Corpus for Spoken Turkish Discourse: Accessibility and Corpus Management Issues. Paper presented at LREC 2010, 17-23 May, Malta.

Çokal, D. & Ruhi, Ş. (2008). Features For An Internet Accessible Corpus Of Spoken Turkish Discourse.  Paper presented at the International Workshop “Corpus and Turkish Linguistics”, Tokyo University, 19-20 December, Tokyo.

Ruhi, Ş. & Çokal, D.  (2008). Türkçe  İçin Sözlü Derlem Oluşturmada Bazı Temel Sorular . (Trans. Of the title: Major Questions In Designing A Spoken Corpus of Turkish).  Paper presented at Mersin Sempozyumu, 19-22 October, Mersin, Turkey.

Çokal, D. (2008). The Anaphoric and Cataphoric Functions of "bu" and "şu" and "this" and "that": Rhetorical Structure and Centering Theories". Paper presented at the 14th International Conference on Turkish Linguistics, 6-8 August, Antalya, Turkey.

Çokal D. (2008). Conversational Repairs of Turkish L2 Users of English. Paper presented the 8th Uluslararası Dil, Yazın Değişbilim Sempozyumu, 14-16 May, İzmir, Turkey.

Çokal, D. & Ruhi, Ş. (2006). Discourse deixis in L2 English writing: Implications for Researching Interlanguage Demonstrative Systems. Paper presented at the 16th Annual Conference of the European Second Language Association, 13- 16 September, Antalya, Turkey.

Çokal, D. (2006). The pragmatics of deictic markers as cue phrases for SLA research and second language pedagogy in written academic discourse. Poster presented at the 16th Annual Conference of the European Second Language Association, 13-16 September, Antalya, Turkey.    

A New Look at Discourse Deixis: a contrastive analysis

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My first book! This was published by VDM Verlag in 2010. You can see more details (or even buy it!) here. The following is from the jacket blurb: 

To date, most studies on 'this' and 'that' have focused upon their place in spoken discourse, defining their functions on the basis of a handful of selected examples and largely neglecting their broader roles within discourse structures. Analysis of their roles in written discourse has remained limited and tentative. This book aims to address this by carrying out a contrastive analysis of the pronominal uses of 'this' and 'that' within the written academic corpus, investigating their discursive roles in the light of the tenets of Centering and Rhetorical Structure theories in order to further our understanding of their pragmatic functions. It examines occurrences of 'this' and 'that' in terms of syntax and pragmatics, and describes the circumstances under which'this' or 'that' is preferred. It sheds interesting new light on the written use of 'this' and 'that' and will be of especial interest to linguists and to instructors in written English as either a first or a second language.



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