Effects of simulated microgravity on brain plasticity: A startle reflex habituation study (Articolo in rivista)

Type
Label
  • Effects of simulated microgravity on brain plasticity: A startle reflex habituation study (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.physbeh.2011.05.019 (literal)
Alternative label
  • Messerotti Benvenuti, Simone; Bianchin, Marta; Angrilli, Alessandro (2011)
    Effects of simulated microgravity on brain plasticity: A startle reflex habituation study
    in Physiology & behavior
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Messerotti Benvenuti, Simone; Bianchin, Marta; Angrilli, Alessandro (literal)
Pagina inizio
  • 503 (literal)
Pagina fine
  • 506 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.ncbi.nlm.nih.gov/pubmed/21627974 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 104 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1, 2: Department of General Psychology, University of Padova, 35131 Padova, Italy; 3: Department of General Psychology, University of Padova, 35131 Padova, Italy / CNR-IN Institute of Neuroscience, Section of Padova, 35128 Padova, Italy (literal)
Titolo
  • Effects of simulated microgravity on brain plasticity: A startle reflex habituation study (literal)
Abstract
  • There is limited but increasing evidence that space environment, namely weightless condition, may affect astronauts' cerebral neurotransmitters and cognitive performance. The present experiment hypothesized that learning and brain plasticity are affected by simulated microgravity condition. To this aim, 22 male subjects matching astronauts' characteristics were divided in two groups, Head-Down Bed Rest (HDBR) and Sitting Control. After 3-h bed rest (or sitting condition) subjects started a picture viewing task during which 30 acoustic startle probes (100 dBA loudness), divided into three consecutive blocks, were delivered through headphones while startle reflex amplitude was measured from the EMG of the orbicularis oculi muscle. Habituation analysis of the startle reflex showed a normal reflex inhibition across blocks in sitting controls and no habituation in HDBR subjects. Results point to a microgravity-induced lack of startle reflex plasticity in subjects matching astronauts, a learning deficit which may affect the success of long-term space missions. (C) 2011 Elsevier Inc. All rights reserved. (literal)
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