Jesse Harris

Jesse Harris

Associate Professor of Linguistics



I am an associate professor at UCLA in the Department of Linguistics, and advise the UCLA Language Processing Lab. My research investigates how language users develop a sufficiently rich linguistic meaning during online comprehension. Recent topics include the processing of ellipsis and the assignment of focus, as well as the role of other semantic, pragmatic, and prosodic defaults in sentence interpretation.

I am committed to using experimental methods in my research, including Internet-based questionnaires, corpora, and online methods such as self-paced reading and eye tracking. See this page for a description of the various methods and data collection tools used in the lab.

Before UCLA, I was an assistant professor at Pomona College, in the Department of Linguistics & Cognitive Science.

I am an organizer for the California Meeting on Psycholinguistics (CAMP), and hosted the inaugural meeting at UCLA in 2017. CAMP 2018 was held at the University of Southern California. CAMP 2019 was held at UC Santa Cruz. CAMP 2021 was held virtually at UC Irvine.

As a person who stutters, I’m proud to serve on the Board of Directors of the Myspeech, a non-profit dedicated to facilitating access to high-quality, client-centered speech therapy to people in underserved communities, as well as providing resources on disability rights for students who stutter and education for speech-language pathologists in training.

Finally, I regularly participate in the Psycholinguistics / Neurolinguistics Seminar; the current schedule may be found here.


  • Psycholinguistics
  • Experimental linguistics
  • Formal semantics and pragmatics
  • Ellipsis structures
  • Focus and information structure
  • Eye movements while reading


  • PhD in Linguistics, 2012

    UMass Amherst

  • MSc in Logic, 2007

    University of Amsterdam

  • MA in Linguistics, 2003

    University of Chicago

  • BA in Linguistics, 2003

    University of Chicago

Research interests

How does the language processing system make efficient use of multiple sources of information to produce a sufficiently rich representation? What information may go underspecified? How does grammatical knowledge constrain representations considered during online sentence processing?

For more details, please refer to this overview of my research agenda or my cv. Ongoing research is also described on the UCLA Language Processing Lab page.


Recent Publications

Search for content by filtering publications.
(2021). Integrating prosody in anticipatory language processing: how listeners adapt to unconventional prosodic cues. Language, Cognition and Neuroscience.

(2021). Acceptability Judgments at the Syntax­-Semantics Interface. In: Grant Goodall (Ed.), Cambridge Handbook of Experimental Syntax.


(2021). Processing ambiguous stripping ellipsis structures in Persian. Glossa: A journal of general linguistics.


(2021). Los Angeles Reading Corpus of Individual Differences: Pilot distribution and analysis. The 43rd Annual Meeting of the Cognitive Science Society.


(2021). The online advantage of repairing metrical structure: Stress shift in pupillometry. The 43rd Annual Meeting of the Cognitive Science Society.



Recent and upcoming

Transparent free relatives and commitments de lingua

Commitments de lingua in transparent free relatives.


Courses for 2021-2022

Winter 2022. Language Processing [Ling 132]

Course description:

Psycholinguistics is a relatively young, but rapidly growing, discipline that addresses how language might be realized as a component within the general cognitive system, and how language is comprehended, produced, and represented in memory. It is an interdisciplinary effort, drawing on research and techniques from linguistics, psychology, neuroscience, and computer science, and utilizes a variety of methods to investigate the underlying representations and mechanisms that are involved in linguistic computations.

This course concentrates on (i) uncovering and characterizing the subsystems that account for linguistic performance, (ii) exploring how such subsystems interact, and whether they interact within a fixed order, and (iii) investigating how the major linguistic subsystems relate to more general cognitive mechanisms.

Winter 2022. Linguistic Processing [Ling 213C]

Course description:

The core areas of psycholinguistics include language acquisition, language perception, language production, language comprehension, language and the brain, and language disorders and damage. This course emphasizes depth over breadth, and so we will not delve into all of these topics. Instead, we will be focusing on just two areas of research: mental representations and processing of lexical units, and sentence comprehension. We start with the basics of lexical access and decision, exploring various models of the processes involved. We then move to an overview of classic models of sentence processing which vary according to a number of related properties such as the modularity/interactionism of information channels and the serialism/parallelism of processing. Finally, we discuss several topics in current and classical language research, including the filler-gap dependencies, semantic processing, and sentence production.

Spring 2022. Language in Context [Ling 8]

Course description:


Spring 2022. Research Methods [Ling 239]

Course description:

Linguistic research has always placed a high premium on data in various forms: native-speaker introspection, fieldwork, corpora, judgment studies, reaction time studies, eye movements, and electrophysiology, to name a few. As the empirical base of linguistics had evolved, community- wide standards for data collection and analysis have become increasingly important. This course provides a practical, hands-on introduction to research design and analysis, with an emphasis on experimental data collection, study design, and proper statistical analysis. Assuming no programming, statistics, or experimental background, the course will provide you with the necessary conceptual and practical tools for carrying out experimental research.

By the end of the course, you should be able to design an experiment that uses an appropriate method and that minimizes confounds, for which you would be able to apply appropriate statistical analysis techniques. Students will work in groups to design an experiment or corpus study to be presented at the end of the course, on an issue relevant to their own research interests.

Courses taught at UCLA


  • LING 8: Language in Context
  • LING 120C: Semantics I
  • LING 132: Language Processing


  • Ling 207: Pragmatic Theory
  • Ling 239: Research Design and Statistical Methods
  • LING 252: Topics in Semantics
    • Fall 2016: Focus in Meaning and Experimentation
  • LING 254: Topics in Linguistics
    • Winter 2015: Evaluating perspective in meaning and discourse
    • Fall 2017: Implicit prosody and sentence processing
    • Spring 2021: Modification and subjectivity
  • LING 264: Psycholinguistics / Neurolingusitics Seminar


Eye tracking corpora and tools

Los Angeles Reading Corpus of Individual Differences

The Los Angeles Reading Corpus of Individual Differences (LARCID) is a corpus of natural reading and individual differences measures. The corpus is currently a feasibility pilot of eye tracking data collected from 15 readers. Five texts from public domain sources were included. In addition to the eye tracking measures, a battery of individual difference measures, along with basic demographic information, was collected in a separate session. Individual difference measures included the Rapid Automatized Naming, Reading Span, N-Back, and Raven’s Progressive Matrices tasks.

Pilot data, write up, and R-markdown files can be found on this Open Science Framework page. Comments welcome!


Robodoc is a Python program that automatically cleans eye tracking data of blinks and track losses. This new version improves usability and command line options. Learn more about this handy code here.

Corpus tools

Linguistic diversity in California

This tutorial shows how to use R to access the US Census to visualize language families spoken in the United States. The interactive Shiny app below illustrates how various languages are distributed in California according to the 2012 American Community Survey.

A fully executable R Markdown tutorial is hosted on github. To clone with git, run this command from the terminal:

git clone

Embedded appositives corpus

The Embedded Appositives Corpus is an annotated collection of 278 sentences containing appositives embedded syntactically in the complement of propositional attitude predicates and verbs of saying, drawn from 177 million words of novels, newspaper articles, and TV transcripts. Intended to inform work on appositives, conventional implicatures, and textual entailment. Includes a Javascript interface, an XML corpus, and a short write-up describing the data and their theoretical relevance.

NPR Corpus scraper

THE NPR Corpus scraper is a collection of Python programs built to crawl NPR and download transcripts into XML format, with links to audio files of radio interviews into a directory. It can be tweaked to crawl other news sites. Note: this tool requires a working knowledge of Python. To be posted with instructions soon!

The script downloads the Linguist List job posting archives for the years specified below. After some reformatting, it removes all but tenure track job postings and categorizes the jobs according to keywords listed in the posting. The method for categorization largely follows previous efforts; see the Language Log postings on the 2008 data, 2009 data, and 2009-2012 data.

A fully executable R Markdown tutorial is hosted on github. To clone with git, run this command from the terminal:

git clone

Odds and ends


Simple to the point of trivial, this Ruby program writes results from Linger’s .dat files to a single file with the experiment name automatically appended along with the number of subjects run. Primarily for command line phobics. If Ruby is installed on Windows, simply place in the same folder as your .dat files, and then double click on the icon to run. Also works with Mac and Linux.



  • 2226 Campbell Hall, Los Angeles, CA 90095
  • Located on the second floor of Campbell Hall
  • Office hours to resume on Zoom in Fall 2020