Skip to main content
Advertisement

Main menu

  • Home
  • Content
    • Current Issue
    • Publication Preview--Ahead of Print
    • Past Issue Archive
    • Case of the Week Archive
    • Classic Case Archive
    • Case of the Month Archive
  • For Authors
  • About Us
    • About AJNR
    • Editors
    • American Society of Neuroradiology
  • Submit a Manuscript
  • Podcasts
    • Subscribe on iTunes
    • Subscribe on Stitcher
  • More
    • Subscribers
    • Permissions
    • Advertisers
    • Alerts
    • Feedback
  • Other Publications
    • ajnr

User menu

  • Subscribe
  • Alerts
  • Log in

Search

  • Advanced search
American Journal of Neuroradiology
American Journal of Neuroradiology

American Journal of Neuroradiology

  • Subscribe
  • Alerts
  • Log in

Advanced Search

  • Home
  • Content
    • Current Issue
    • Publication Preview--Ahead of Print
    • Past Issue Archive
    • Case of the Week Archive
    • Classic Case Archive
    • Case of the Month Archive
  • For Authors
  • About Us
    • About AJNR
    • Editors
    • American Society of Neuroradiology
  • Submit a Manuscript
  • Podcasts
    • Subscribe on iTunes
    • Subscribe on Stitcher
  • More
    • Subscribers
    • Permissions
    • Advertisers
    • Alerts
    • Feedback
  • Follow AJNR on Twitter
  • Visit AJNR on Facebook
  • Follow AJNR on Instagram
  • Join AJNR on LinkedIn
  • RSS Feeds
ReplyLETTER

Reply:

D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. Brown
American Journal of Neuroradiology February 2020, 41 (2) E8; DOI: https://doi.org/10.3174/ajnr.A6400
D.R. Roberts
aDepartment of Radiology and Radiological Science
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for D.R. Roberts
D. Asemani
aDepartment of Radiology and Radiological Science
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for D. Asemani
P.J. Nietert
bDepartment of Public Health
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for P.J. Nietert
M.A. Eckert
cDepartment of Otolaryngology - Head and Neck Surgery
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for M.A. Eckert
D.C. Inglesby
dDepartment of Radiology and Radiological ScienceMedical University of South CarolinaCharleston, South Carolina
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for D.C. Inglesby
J.J. Bloomberg
eNeurosciences LaboratoryNASA Johnson Space CenterHouston, Texas
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for J.J. Bloomberg
M.S. George
fDepartment of Psychiatry and Behavioral SciencesMedical University of South CarolinaCharleston, South CarolinaRalph H. Johnson VA Medical CenterCharleston, South Carolina
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for M.S. George
T.R. Brown
gDepartment of Radiology and Radiological ScienceMedical University of South CarolinaCharleston, South Carolina
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for T.R. Brown
  • Article
  • Info & Metrics
  • References
  • PDF
Loading

We thank Drs Bevelacqua, Welsh, and Mortazavi for their interest in our article, “Prolonged Microgravity Affects Human Brain Structure and Function.” We disagree, however, that we have ignored the multiple unique features of the spaceflight environment to which astronauts are exposed and that “this omission has possibly affected the validity of the findings.”

As we stated in the article, many factors affect individual astronaut performance. These factors include psychological stress, gravitational changes, and radiation exposure as highlighted in the letter of Drs Bevelacqua, Welsh, and Mortazavi. Other unique characteristics of the spaceflight environment include elevated carbon dioxide levels, cephalad fluid shifts, and unique microbial habitats among others. Any of these factors may act individually or in synergy to result in the changes in brain structure and cognitive function that we have documented in astronauts after spaceflight.

Our study highlights the need for further investigations of human brain adaptation to spaceflight to disentangle the relative contribution that each factor, including radiation exposure, may have on brain health. This work will be important in guiding the development of effective countermeasures protecting brain function in support of future human spaceflight.

  • © 2020 by American Journal of Neuroradiology
PreviousNext
Back to top

In this issue

American Journal of Neuroradiology: 41 (2)
American Journal of Neuroradiology
Vol. 41, Issue 2
1 Feb 2020
  • Table of Contents
  • Index by author
  • Complete Issue (PDF)
Advertisement
Print
Download PDF
Email Article

Thank you for your interest in spreading the word on American Journal of Neuroradiology.

NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.

Enter multiple addresses on separate lines or separate them with commas.
Reply:
(Your Name) has sent you a message from American Journal of Neuroradiology
(Your Name) thought you would like to see the American Journal of Neuroradiology web site.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Citation Tools
Reply:
D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George, T.R. Brown
American Journal of Neuroradiology Feb 2020, 41 (2) E8; DOI: 10.3174/ajnr.A6400

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero
Share
Reply:
D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George, T.R. Brown
American Journal of Neuroradiology Feb 2020, 41 (2) E8; DOI: 10.3174/ajnr.A6400
del.icio.us logo Digg logo Reddit logo Twitter logo CiteULike logo Facebook logo Google logo Mendeley logo
  • Tweet Widget
  • Facebook Like
  • Google Plus One
Purchase

Jump to section

  • Article
  • Info & Metrics
  • References
  • PDF

Related Articles

  • No related articles found.
  • PubMed
  • Google Scholar

Cited By...

  • No citing articles found.
  • Crossref
  • Google Scholar

This article has not yet been cited by articles in journals that are participating in Crossref Cited-by Linking.

More in this TOC Section

  • Acute Stroke Imaging in Transfer Patients Who Received Recent Intravenous Iodinated Contrast at an Outside Facility: An Unrecognized Problem That Deserves More Attention
  • Primary Angiitis of the CNS with Unremarkable Vessel Wall MR Imaging: How the “T1 Shinethrough” Effect on SWI Adds to the Detection of Gadolinium Enhancement of Small Intraparenchymal Brain Vessels
  • Seeing What We Expect to See in COVID-19
Show more LETTERS

Similar Articles

Advertisement

News and Updates

  • Lucien Levy Best Research Article Award
  • Thanks to our 2020 Distinguished Reviewers
  • Press Releases

Resources

  • Evidence-Based Medicine Level Guide
  • How to Participate in a Tweet Chat
  • AJNR Podcast Archive
  • Ideas for Publicizing Your Research
  • Librarian Resources
  • Terms and Conditions

Opportunities

  • Share Your Art in Perspectives
  • Get Peer Review Credit from Publons
  • Moderate a Tweet Chat

American Society of Neuroradiology

  • Neurographics
  • ASNR Annual Meeting
  • Fellowship Portal
  • Position Statements

© 2021 by the American Society of Neuroradiology | Print ISSN: 0195-6108 Online ISSN: 1936-959X

Powered by HighWire