MedTrace Logo

Use of Transcranial Magnetic Stimulation (TMS) and Magnetic Resonance Imaging (MRI) to Study Visual Attention

NCT00006285 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2017-07-02

No results posted yet for this study

Summary

The purpose of this study is to learn more about how the brain allows people to focus on important objects and filter out unimportant ones when looking at visual images.

Our senses provide us with a vast amount of information at any given moment in time. For example, visual scenes contain many different objects that cannot be processed simultaneously because of the limited processing capacity of the brain's visual system. Evidence suggests that a a network of brain regions selects relevant information and filters out irrelevant information when people view cluttered visual scenes. This study will use transcranial magnetic stimulation (TMS) and functional magnetic resonance imaging (fMRI) to determine how the different brain regions involved in attentional control and filtering interact.

Participants in this study will undergo computer tests, an MRI scan, and TMS. During the MRI, participants will look at pictures and count objects appearing on a screen. During the TMS, participants will perform a computer test. Participants' ability to pay attention will be tested with and without TMS. Participants may be asked to return for additional tests in the future....

Conditions

  • Healthy

Sponsors & Collaborators

  • National Institute of Mental Health (NIMH)

    lead NIH

Eligibility

Min Age
20 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2000-09-14
Primary Completion
2002-04-01
Completion
2002-04-01

Countries

  • United States

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 NCT00006285 on ClinicalTrials.gov