Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Ajitkumar P Mulavara"'
Publikováno v:
npj Microgravity, Vol 2, Iss 1, Pp 1-8 (2016)
Abstract Humans undergo extensive sensorimotor adaptation during spaceflight due to altered vestibular inputs and body unloading. No studies have yet evaluated the effects of spaceflight on human brain structure despite the fact that recently reporte
Externí odkaz:
https://doaj.org/article/5299a4bde019412ead8ae352ac27dbe8
Autor:
Fatemeh Noohi, Catherine Kinnaird, Yiri De Dios, Igor Kofman, Scott J Wood, Jacob J Bloomberg, Ajitkumar P Mulavara, Kathleen H Sienko, Thad A Polk, Rachael D Seidler
Publikováno v:
PLoS ONE, Vol 14, Iss 9, p e0221954 (2019)
Aging is associated with peripheral and central declines in vestibular processing and postural control. Here we used functional MRI to investigate age differences in neural vestibular representations in response to pneumatic tap stimulation. We also
Externí odkaz:
https://doaj.org/article/db5968aca1554cafa87c6aa697c3b876
Autor:
Vincent Koppelmans, Jessica M Scott, Meghan E Downs, Kaitlin E Cassady, Peng Yuan, Ofer Pasternak, Scott J Wood, Yiri E De Dios, Nichole E Gadd, Igor Kofman, Roy Riascos, Patricia A Reuter-Lorenz, Jacob J Bloomberg, Ajitkumar P Mulavara, Lori L Ploutz-Snyder, Rachael D Seidler
Publikováno v:
PLoS ONE, Vol 13, Iss 10, p e0205515 (2018)
PurposeSpaceflight negatively affects sensorimotor behavior; exercise mitigates some of these effects. Head down tilt bed rest (HDBR) induces body unloading and fluid shifts, and is often used to investigate spaceflight effects. Here, we examined whe
Externí odkaz:
https://doaj.org/article/0696e4035dcf4997ad84faba6f55723f
Autor:
Vincent Koppelmans, Jacob J Bloomberg, Yiri E De Dios, Scott J Wood, Patricia A Reuter-Lorenz, Igor S Kofman, Roy Riascos, Ajitkumar P Mulavara, Rachael D Seidler
Publikováno v:
PLoS ONE, Vol 12, Iss 8, p e0182236 (2017)
Adverse effects of spaceflight on sensorimotor function have been linked to altered somatosensory and vestibular inputs in the microgravity environment. Whether these spaceflight sequelae have a central nervous system component is unknown. However, e
Externí odkaz:
https://doaj.org/article/e4442e53eb81491f9e9dc901c9f88d3b
Publikováno v:
Frontiers in Systems Neuroscience, Vol 9 (2015)
Astronauts experience disturbances in balance and gait function when they return to Earth. The highly plastic human brain enables individuals to modify their behavior to match the prevailing environment. Subjects participating in specially designed v
Externí odkaz:
https://doaj.org/article/162f6b82ac3c4cea80d6a13dbcde00fb
Autor:
Vincent eKoppelmans, Ajitkumar P Mulavara, Peng eYuan, Kaitlin E Cassady, Katherine A Cooke, Scott J Wood, Patricia A Reuter-Lorenz, Yiri E De Dios, Vahagn eStepanyan, Darcy L Szecsy, Nichole E Gadd, Igor eKofman, Jessica M Scott, Meghan E Downs, Jacob J Bloomberg, Lori ePloutz-Snyder, Rachael D Seidler
Publikováno v:
Frontiers in Systems Neuroscience, Vol 9 (2015)
BACKGROUND Spaceflight has been associated with changes in gait and balance; it is unclear whether it affects cognition. Head down tilt bed rest (HDBR) is a microgravity analog that mimics cephalad fluid shifts and body unloading. In consideration of
Externí odkaz:
https://doaj.org/article/ff2d3833ed0846f3ada79a2878559e46
Autor:
Rahul Goel, Igor Kofman, Jerome Jeevarajan, Yiri De Dios, Helen S Cohen, Jacob J Bloomberg, Ajitkumar P Mulavara
Publikováno v:
PLoS ONE, Vol 10, Iss 8, p e0136335 (2015)
Low-level stochastic vestibular stimulation (SVS) has been associated with improved postural responses in the medio-lateral (ML) direction, but its effect in improving balance function in both the ML and anterior-posterior (AP) directions has not bee
Externí odkaz:
https://doaj.org/article/4c8d6b2107c84f5e958df33632d88079
Autor:
Heather R. McGregor, Kathleen E. Hupfeld, Ofer Pasternak, Nichole E. Beltran, Yiri E. De Dios, Jacob J. Bloomberg, Scott J. Wood, Ajitkumar P. Mulavara, Roy F. Riascos, Patricia A. Reuter-Lorenz, Rachael D. Seidler
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract Spaceflight induces widespread changes in human brain morphology. It is unclear if these brain changes differ with varying mission duration or spaceflight experience history (i.e., novice or experienced, number of prior missions, time betwee
Externí odkaz:
https://doaj.org/article/b9efeb4e3bcb44c59e410c9e70c682bd
Autor:
Heather R. McGregor, Jessica K. Lee, Edwin R. Mulder, Yiri E. De Dios, Nichole E. Beltran, Scott J Wood, Jacob J. Bloomberg, Ajitkumar P. Mulavara, Rachael D. Seidler
Publikováno v:
NeuroImage, Vol 278, Iss , Pp 120261- (2023)
Spaceflight has numerous untoward effects on human physiology. Various countermeasures are under investigation including artificial gravity (AG). Here, we investigated whether AG alters resting-state brain functional connectivity changes during head-
Externí odkaz:
https://doaj.org/article/6b4b1f8908194553937ed30af4554bb7
Autor:
Joshua S. Alwood, Ajitkumar P. Mulavara, Janani Iyer, Siddhita D. Mhatre, Susanna Rosi, Mark Shelhamer, Catherine Davis, Christopher W. Jones, Xiao Wen Mao, Rajeev I. Desai, Alexandra M. Whitmire, Thomas J. Williams
Publikováno v:
Life, Vol 13, Iss 9, p 1852 (2023)
Biomarkers, ranging from molecules to behavior, can be used to identify thresholds beyond which performance of mission tasks may be compromised and could potentially trigger the activation of countermeasures. Identification of homologous brain region
Externí odkaz:
https://doaj.org/article/fae5ebc0ec5a4b04b825de8bc8b7ab7e