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Cognitive Neurocomputational Task Reliability and Clinical Applications Consortium: Study 3 (CNTRACS)

5. november 2026 opdateret af: Deanna Barch, Washington University School of Medicine

Cognitive Neurocomputational Task Reliability and Clinical Applications Consortium

In Study 3, all tasks and models from Aim 1 will be evaluated in a large community sample of online participants recruited through Prolific.

Aim 3 will establish 1) requirements for testing computational algorithms in population-based samples, 2) whether task length is optimal, and 3) whether computational parameters help predict psychopathology (hallucinations and delusions in particular) in the general population, and how these predictors may be impacted by demographic variables, such as race, ethnicity, gender, age and other social determinants of health.

Participant demographics will be matched to the U.S. Census 2023 American Community Survey (ACS) data release (updated as available). MPI MacDonald has successfully recruited large online samples for over a decade.

Specifically, researchers will recruit two samples of n=2,000 to preregister hypotheses and then n=3,000 to independently confirm those hypotheses. Multiple methods will affirm the highest quality human self-report and behavioral data for online samples.

Researchers use Prolific, which is known for high quality research participation, maintaining low levels of bots through strategies such as requiring a photo ID and a waiting period. Second, inclusion criteria will require an approval rating of 90-100% from previous researchers. Participants will complete three sessions, each limited to ~60 min to avoid burnout.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Researchers will recruit two samples of 2,000 to preregister hypotheses and then 3,000 to independently confirm those hypotheses.

Multiple methods will affirm the highest quality human self-report and behavioral data for online samples. First, researchers will use Prolific, which is known for high quality research participation, maintaining low levels of bots through strategies such as requiring a photo ID and a waiting period. Participants will complete 3 sessions, each limited to ~60 min to avoid burnout. Researchers anticipate complete data from 74% of participants, based on data completion rates in the previous online study.

General Cognitive Ability. Researchers will include standard general cognitive measures to assess the specificity of effects beyond general cognitive impairment. Specifically, researchers will include validated online measures from TestMyBrain (https://www.testmybrain.org/using-tmb/research.html; Digit Symbol Coding, Vocabulary, and Matrix Reasoning), as in our prior work in both clinical and healthy populations.

Self-Report Questionnaires: Researchers will use the Beliefs about Voices Scale which assesses attributions about the origin and power of voices, and the Yale Control Over Perceptual Experiences (COPE) scale, which evaluates the extent to which people feel they can exert control over their voices. Researchers will also use the Peters Delusion Inventory to assess the extent of delusional thinking, supplemented by the Green Paranoia Scale, which provides additional coverage of persecutory beliefs. To assess specificity, researchers will use the Patient Health Questionnaire (PHQ-9) to assess depression, the Generalized Anxiety Disorder Scale (GAD-7)78 to assess anxiety, and the Motivation and Pleasure Scale-Self-Report (MAP-SR) to assess anhedonia and motivation with the addition of additional measures of psychosis (Aberrant Salience Inventory, Schizotypal Personality Questionnaire - Brief), alcohol use (AUDIT), cannabis use (Daily Sessions, Frequency, Age of Onset, and Quantity of Cannabis Use Inventory), and tobacco and other substance use (World Health Organization (WHO) Alcohol, Smoking and Substance Involvement Screening Test), as researchers will not have a Stuctured Clinical Interview (SCID) for on-line participants.

Researchers will also measure daily functioning using the World Health Organization Disability Assessment Schedule (WHODAS) 2.0. Validity questions and procedures will be included. These measures will take 30 mins to complete, as researchers found in prior studies. Researchers will conduct a principal components analysis (PCA) on measures of the same construct (e.g., delusions) and perform primary analyses using the first principal component, followed by secondary analyses of specific measures False Discovery Rate (FDR) correction.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

10000

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

    • Minnesota
      • Minneapolis, Minnesota, Forenede Stater, 55455
        • Rekruttering
        • University of Minnesota
        • Kontakt:
          • Angus MacDonald III, PhD
          • Telefonnummer: 612-624-3813
          • E-mail: angus@umn.edu
        • Kontakt:
    • Missouri
      • St Louis, Missouri, Forenede Stater, 63130
        • Rekruttering
        • Washington University
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 59 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Residents of the U.S.
  • between 18-59 years of age

Exclusion Criteria:

  • Resides outside of U.S.
  • under 18 or over 59 years of age

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Grundvidenskab
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Sine Wave Speech Task Performance
Tidsramme: 1 hour

Percentage of trials coded as speech or not vs Dprime

1 hour
Minnesota Trust Game Performance
Tidsramme: 1 hour

Percent of trusting choices depending on decision-agent and temptation vs. spite-guilt beliefs estimate

1 hour
Dynamic Trust Game Performance
Tidsramme: 1 hour

Trust indexed by mean investment versus learning rates

1 hour
Motion Perception Task Performance
Tidsramme: 1 hour

With 15 degrees of initial or changed direction vs. the probability of failing to update

1 hour
Volatility Task Performance
Tidsramme: 1 hour

Percent correct bag captures during periods of stability vs. instability - patients worse in both, but particularly impaired ininstability vs. Environmental volatility belief parameter

1 hour
Choice Probabilistic Reversal Performance Task
Tidsramme: 1 hour

Win-switch rate (higher in patients, particularly paranoid patients) vs. (prior on volatility belief updating in response tovolatility

1 hour
Kamin Blocking Task Performance
Tidsramme: 1 hour

Number of times participant predict allergy following blocked cue vs. prediction errors and learning rates

1 hour

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Deanna Barch, PhD, Washington University School of Medicine

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. december 2026

Primær færdiggørelse (Anslået)

30. juni 2031

Studieafslutning (Anslået)

30. juni 2031

Datoer for studieregistrering

Først indsendt

21. oktober 2026

Først indsendt, der opfyldte QC-kriterier

21. oktober 2026

Først opslået (Faktiske)

28. oktober 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

9. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. november 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 201904012: Study 3
  • 2R01MH084840 (U.S. NIH-bevilling/kontrakt)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

Our plan is to share de-identified participant data through the National Data Archive (NDA) as required bythe National Institute of Mental Health (NIMH)

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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