Matthew W. Crocker

On the limits of LLM surprisal as a functional explanation of the N400 and P600

Benedict Krieger, Harm Brouwer, Christoph Aurnhammer, Matthew W. Crocker

Expectations about upcoming words play a central role in language comprehension, with expected words being processed more easily than less expected ones. Surprisal theory formalizes this relationship by positing that cognitive effort is proportional to a word’s negative log-probability in context, as …

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Social Determinants of Health Screening in a Pediatric Asthma Population Leveraging an Institutional Electronic Medical Record-based Population Registry

Rebecca Spurr, Eileen Sullivan, Matthew W. Crocker, S. Girija et autres

Abstract Rationale Understanding family experience for social determinants of health (SDOH), like neighborhood factors and financial constraints, supports comprehensive asthma care delivery. In 2021, our institution implemented an annual, electronic medical record (EMR)-based SDOH screen for clinic patients across four risk domains: …

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On the biphasic nature of the N400-P600 complex underlying language comprehension

Francesca Delogu, Christoph Aurnhammer, Harm Brouwer, Matthew W. Crocker

The ERP literature on language comprehension reveals variability in observing monophasic N400 versus biphasic N400-P600 effects in response to incongruent input, with the reasons for this inconsistency remaining unclear. Two interrelated factors may contribute: spatiotemporal overlap between the N400 and P600, where …

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Linking Community-based Substance Use Disorder Treatment to Health Administrative Data: understanding vulnerable populations.

Paul Kurdyak, Matthew W. Crocker, Anjie Huang, Natasha Saunders

IntroductionMost substance use disorder (SUD) treatment occurs in community settings. Community-based SUD treatment information is rarely captured or utilized. The objective of this study was to examine the efficiency of a data linkage of community-based SUD treatment to health administrative data holdings …

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Prevalence of a dual diagnosis of mental illness and substance use disorder in Ontario, Canada: a retrospective cohort study using linked administrative data

Jesse T Young, Bryan Tanner, Matthew W. Crocker, Isobel Sharpe et autres

ObjectivePopulation-based prevalence estimates of co-occurring mental illness and substance use disorder (herein dual diagnosis) are scarce and derived from a single source (e.g., survey data) which may lead to underestimation of prevalence. We linked administrative data to a representative mental health survey …

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Optimal Use Cases for Electric and Hybrid Tactical Vehicles

Bridget Konopa, Mark D. Miller, Luke Revnew, John Muraco et autres

In alignment with the U.S. Army's Climate Strategy and the broader trend in automotive technology, there is a strategic shift towards electrification and hybridization of the vehicle fleet. While a major goal of this effort is to mitigate the carbon footprint of …

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The role of systematicity in early referent selection

Ming Yean Sia, Emily Mather, Matthew W. Crocker, Nivedita Mani

Previous studies showed that word learning is affected by children's existing knowledge. For instance, knowledge of semantic category aids word learning, whereas a dense phonological neighbourhood impedes learning of similar-sounding words. Here, we examined to what extent children associate similar-sounding words (e.g., …

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An Analysis of Solar Opportunity Recharging for Electrified Tactical Vehicles

Vikram Mittal, John Muraco, Bridget Konopa, Logan Mayfield et autres

The U.S. Army initiated a shift towards electrifying and hybridizing its tactical vehicle fleet in alignment with its Climate Strategy and global automotive trends. Survey findings indicate a general desire by soldiers for the ability to opportunity charge electrified tactical vehicles, especially …

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Single-trial neurodynamics reveal N400 and P600 coupling in language comprehension

Christoph Aurnhammer, Matthew W. Crocker, Harm Brouwer

Theories of the electrophysiology of language comprehension are mostly informed by event-related potential effects observed between condition averages. We here argue that a dissociation between competing effect-level explanations of event-related potentials can be achieved by turning to predictions and analyses at the …

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Computational Psycholinguistics

Matthew W. Crocker, Harm Brouwer

Computational psycholinguistics seeks to develop computational theories and implemented models of the cognitive systems that map an unfolding linguistic signal onto a mental representation of its meaning. Focusing primarily on language comprehension, this chapter begins with early theories of sentence processing, before …

The P600 as a continuous index of integration effort

Christoph Aurnhammer, Francesca Delogu, Harm Brouwer, Matthew W. Crocker

The integration of word meaning into an unfolding utterance representation is a core operation of incremental language comprehension. There is considerable debate, however, as to which component of the ERP signal-the N400 or the P600-directly reflects integrative processes, with far reaching consequences …

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When a look is enough: Neurophysiological correlates of referential speaker gaze in situated comprehension

Torsten Kai Jachmann, Heiner Drenhaus, Maria Staudte, Matthew W. Crocker

Behavioral studies have shown that speaker gaze to objects in a co-present scene can influence listeners' expectations about how the utterance will unfold. These findings have recently been supported by ERP studies that linked the underlying mechanisms of the integration of speaker …

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