Magnetic Resonance Imaging (MRI) and Decline of Aging Aviator Performance

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01120860
Recruitment Status : Completed
First Posted : May 11, 2010
Last Update Posted : February 28, 2017
Information provided by (Responsible Party):
Joy Taylor, Stanford University

Brief Summary:
The primary purpose of this study is to apply state-of-the-art Magnetic Resonance Imaging (MRI) and Magnetic Resonance Spectroscopic Imaging (MRSI) techniques to measure changes over time in the brain.

Condition or disease Intervention/treatment
Age-related Cognitive Decline Device: MRI

Detailed Description:

We expect that MRI and MRSI techniques will be a useful adjunct in research efforts to understand individual differences in performance of a complex attention-demanding task, such as flying a plane or driving a car. Other predictors of change in performance of a complex task may include simple tests of processing speed and working memory, past training and recent practice of the task, and genetic risk factors for degenerative brain disease. In this project, we will examine whether baseline MR measures are as useful as longitudinal MR measures in predicting amount of change over time in task performance.

This research is part of a long-term effort to achieve earlier identification of individuals at risk of decline and ultimately minimize loss of function.

Study Type : Observational
Actual Enrollment : 67 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: MRI and Decline of Aging Aviator Performance
Study Start Date : November 2002
Actual Primary Completion Date : July 2011
Actual Study Completion Date : July 2011

Resource links provided by the National Library of Medicine

MedlinePlus related topics: MRI Scans

Intervention Details:
  • Device: MRI
    MRI - routine imaging sequences, designed for anatomical quantification

Primary Outcome Measures :
  1. flight simulator performance summary score [ Time Frame: yearly for up to 6 years ]
    z-score composite of executing ATC communications, avoiding traffic, monitoring engine malfunctions, visual approach and landing

Secondary Outcome Measures :
  1. CogScreen-AE [ Time Frame: yearly ]
    computerized battery (assesses processing speed, executive function, paired assoc memory, n-back task, psychomotor tracking

  2. Salthouse processing speed measures [ Time Frame: yearl ]
    digit copy & pattern comparison

Biospecimen Retention:   Samples With DNA
frozen genomic DNA

Information from the National Library of Medicine

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Ages Eligible for Study:   45 Years to 100 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
active healthy pilots

Inclusion Criteria:

  • Subjects will be included if they have participated in the protocol "Age-Related Longitudinal Changes in Aviator Performance" and agree to participate in this protocol.

Exclusion Criteria:

  • Subjects will be excluded if they currently have a major neurological disease, unstable/untreated medical disease (such as untreated hypertension).
  • In consideration of the magnetic fields in which subjects will be placed for the MR scanning, we will also exclude subjects who are unable to safely and comfortably complete the scanning session. This includes individuals who are wearing any metal prosthesis or who have cardiac pacemakers or any other nonremovable metal objects.
  • Subjects reporting a history of severe claustrophobia or poorly controlled back pain will be excluded because it is unlikely they could comfortably remain still in the MRI scanner for the duration of the scan.
  • In addition, subjects who do not fit in the apparatus will also be excluded.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01120860

United States, California
VA Palo Alto Health Care System
Palo Alto, California, United States, 94304
Sponsors and Collaborators
Palo Alto Veterans Institute for Research
Principal Investigator: Joy Taylor Stanford University

Responsible Party: Joy Taylor, Clinical Professor (affiliated), Psychiatry & Behavioral Sciences, Stanford University Identifier: NCT01120860     History of Changes
Other Study ID Numbers: TAYRNW0001/TAY0002
First Posted: May 11, 2010    Key Record Dates
Last Update Posted: February 28, 2017
Last Verified: February 2017

Keywords provided by Joy Taylor, Stanford University:
Cognitive Aging
Apolipoproteins E
Magnetic Resonance Imaging

Additional relevant MeSH terms:
Cognitive Dysfunction
Cognition Disorders
Neurocognitive Disorders
Mental Disorders