MedTrace Logo

HIERARCHY OF VISION

NCT03905616 · Status: WITHDRAWN · Phase: NA · Type: INTERVENTIONAL

Last updated 2021-02-25

No results posted yet for this study

Summary

Little is known about the exact role of feedback in cortical processing. Hypotheses on its function range from attentional control to the transmission of Bayesian priors in the interpretation of sensory events, such as in the theory of Predictive Coding. Recent advances in identification of functional signatures of feedback and feedforward signal, as well as additional techniques based on causal relations in signal processing open a unique methodology for probing such processes in awake and behaving organisms and testing these theories and more generally the hierarchical processing between cortical areas.

The objective of this project is to study feedback and feedforward relations and localization in the well established pathways between cortical areas V1 and Medial Temporal (MT) that have been implicated in early integration processes in motion perception.

Conditions

  • Neurologic Signs

Interventions

DEVICE

functional Magnetic Resonance Imaging

In a 2-hour session, the subject we be shown different control and experimental conditions (all being visual stimuli) in perceptive tasks.

Sponsors & Collaborators

  • Hospices Civils de Lyon

    lead OTHER

Study Design

Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

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

Timeline & Regulatory

Start
2019-07-22
Primary Completion
2021-02-17
Completion
2021-02-17

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 NCT03905616 on ClinicalTrials.gov