Gregory Hickok

About

Gregory Hickok is a professor involved in the Auditory & Language Neuroscience Lab at the University of California, Irvine. His research focuses on the functional anatomy of language, the neural organization of speech production and perception, and the neural organization of gestural communication, including evidence from sign language. His work encompasses the neural basis of language and music perception, as well as computational models of aphasia and the neural mechanisms underlying speech and gesture. Hickok's contributions include exploring the neural organization of speech and language, utilizing techniques such as electrocorticography (ECoG), and investigating the neural substrates involved in language processing and communication.

Research topics

• Computer Science
• Psychology
• Linguistics
• Medicine
• Natural Language Processing
• Cognitive psychology
• Cognitive science
• Artificial Intelligence
• Audiology
• Neuroscience

Selected publications

• Language prediction mechanisms in human auditory cortex

  Nature Communications · 2020 · 111 citations

  Spoken language, both perception and production, is thought to be facilitated by an ensemble of predictive mechanisms. We obtain intracranial recordings in 37 patients using depth probes implanted along the anteroposterior extent of the supratemporal plane during rhythm listening, speech perception, and speech production. These reveal two predictive mechanisms in early auditory cortex with distinct anatomical and functional characteristics. The first, localized to bilateral Heschl's gyri and ind…

  DOI

• Agrammatism and Paragrammatism: A Cortical Double Dissociation Revealed by Lesion-Symptom Mapping

  Neurobiology of Language · 2020 · 74 citations

  Senior authorCorresponding

  = 0.873). The same results obtained when regressing out the effect of speech rate, and nonoverlapping lesion distributions between the syndromes were confirmed by uncorrected whole brain analyses. Our results support a fundamental distinction between agrammatism and paragrammatism.

  DOI

• The dual stream model of speech and language processing

  Handbook of clinical neurology · 2022 · 65 citations

  1st authorCorresponding
  DOI

• What we mean when we say semantic: Toward a multidisciplinary semantic glossary

  Psychonomic Bulletin & Review · 2024 · 61 citations

  Tulving characterized semantic memory as a vast repository of meaning that underlies language and many other cognitive processes. This perspective on lexical and conceptual knowledge galvanized a new era of research undertaken by numerous fields, each with their own idiosyncratic methods and terminology. For example, "concept" has different meanings in philosophy, linguistics, and psychology. As such, many fundamental constructs used to delineate semantic theories remain underspecified and/or op…

  PublisherOA PDFDOI

• Predicting Outcomes of Language Rehabilitation: Prognostic Factors for Immediate and Long-Term Outcomes After Aphasia Therapy

  Journal of Speech Language and Hearing Research · 2023-02-24 · 41 citations

  articleOpen access

  Background: Aphasia therapy is an effective approach to improve language function in chronic aphasia. However, it remains unclear what prognostic factors facilitate therapy response at the individual level. Here, we utilized data from the POLAR (Predicting Outcomes of Language Rehabilitation in Aphasia) trial to (a) determine therapy-induced change in confrontation naming and long-term maintenance of naming gains and (b) examine the extent to which aphasia severity, age, education, time postonse…

  PublisherDOI

Recent grants

• Center for the Study of Aphasia Recovery (C-STAR)

  NIH · $48.5M · 2016–2027

• Neurobiology of Auditory Language Perception

  NIH · $7.2M · 1999–2016

• Integrative Functions of the Planum Temporale

  NIH · $5.1M · 2008–2022

Frequent coauthors

• Julius Fridriksson

  University of South Carolina

  60 shared

• Argye E. Hillis

  Johns Hopkins University

  55 shared

• Leonardo Bonilha

  Medical University of South Carolina

  36 shared

• Alexandra Basilakos

  University of South Carolina

  34 shared

• Kourosh Saberi

  32 shared

• Chris Rorden

  University of South Carolina

  31 shared

• William Matchin

  University of South Carolina

  28 shared

• Ursula Bellugi

  26 shared

Labs

• Auditory & Language Neuroscience LabPI

Similar researchers at University of California, Irvine

• Xin Xieh-93
• Richard Futrellh-34
• Lisa Pearlh-19