MedTrace Logo

Imaging During Subliminal Perception

NCT04643340 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 70

Last updated 2023-06-13

No results posted yet for this study

Summary

Subliminal perception of visual stimuli can be studied with functional brain imaging, e.g. with functional magnetic resonance imaging (fMRI). However, it is unclear how subliminal perception affects connectivity in the brain.

Further, it is not known if real-time (rt) fMRI neurofeedback of brain areas involved in subliminal perception can lead to supra-threshold perception.

For attention tasks, the investigators hypothesize that functional connectivity strength is mediated by the insular cortex during both supra-threshold and subliminal perception.

Additionally, the investigators hypothesize that rt-fMRI neurofeedback training should alter neuronal and behavioral responses.

Conditions

  • Healthy

Interventions

OTHER

real-time fMRI

Brain regions can be trained, i.e. fMRI activity can be actively modulated online by humans, using rt-fMRI (Bruhl, Scherpiet et al. 2014, Bruhl 2015, Emmert, Kopel et al. 2016).

Sponsors & Collaborators

  • Swiss National Science Foundation

    collaborator OTHER

  • University of Zurich

    lead OTHER

Principal Investigators

  • Lars Michels, PhD · University Hospital, Zürich

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-03-15
Primary Completion
2021-12-01
Completion
2022-12-01

Countries

  • Switzerland

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04643340 on ClinicalTrials.gov