Abstract:
BACKGROUND:Motion sickness may be caused by a sensory conflict between the visual and the vestibular systems. Scopolamine, known to be the most effective therapy to control the vegetative symptoms of motion sickness, acts on the vestibular nucleus and potentially the vestibulospinal pathway, which may affect balance and motor tasks requiring both attentional process and motor balance. The aim of this study was to explore the effect of scopolamine on motor control and attentional processes. METHODS:Seven subjects were evaluated on four different tasks before and after a subcutaneous injection of scopolamine (0.2 mg): a one-minute balance test, a subjective visual vertical test, a pointing task and a galvanic vestibular stimulation with EMG recordings. RESULTS:The results showed that the reaction time and the movement duration were not modified after the injection of scopolamine. However, there was an increase in the center of pressure displacement during the balance test, a decrease in EMG muscle response after galvanic vestibular stimulation and an alteration in the perception of verticality. DISCUSSION:These results confirm that low doses of scopolamine such as those prescribed to avoid motion sickness have no effect on attentional processes, but that it is essential to consider the responsiveness of each subject. However, scopolamine did affect postural control and the perception of verticality. In conclusion, the use of scopolamine to prevent motion sickness must be considered carefully because it could increase imbalances in situations when individuals are already at risk of falling (e.g., sailing, parabolic flight).
journal_name
PeerJjournal_title
PeerJauthors
Bestaven E,Kambrun C,Guehl D,Cazalets JR,Guillaud Edoi
10.7717/peerj.2008subject
Has Abstractpub_date
2016-05-05 00:00:00pages
e2008issn
2167-8359pii
2008journal_volume
4pub_type
杂志文章相关文献
PeerJ文献大全abstract::Five tropical seaweeds, Kappaphycus alvarezii (Doty) Doty ex P.C. Silva, Padina australis Hauck, Sargassum binderi Sonder ex J. Agardh (syn. S. aquifolium (Turner) C. Agardh), Sargassum siliquosum J. Agardh and Turbinaria conoides (J. Agardh) Kützing, were incubated in seawater of pH 8.0, 7.8 (ambient), 7.6, 7.4 and 7...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2918
更新日期:2017-01-25 00:00:00
abstract::Type I restriction-modification enzymes are multisubunit, multifunctional molecular machines that recognize specific DNA target sequences, and their multisubunit organization underlies their multifunctionality. EcoR124I is the archetype of Type I restriction-modification family IC and is composed of three subunit type...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2887
更新日期:2017-01-18 00:00:00
abstract::The threatened status (both ecologically and legally) of Caribbean staghorn coral, Acropora cervicornis, has prompted rapidly expanding efforts in culture and restocking, although tissue loss diseases continue to affect populations. In this study, disease surveillance and histopathological characterization were used t...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.541
更新日期:2014-08-28 00:00:00
abstract::Dengue is endemic throughout tropical and subtropical regions of the world. Currently, there is no clinically approved therapeutic drug available for this acute viral infection. Although the first dengue vaccine Dengvaxia has been approved for use in certain countries, it is limited to those without a previous dengue ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3939
更新日期:2018-01-30 00:00:00
abstract:Background:Many fish taxa produce sound in voluntary and in disturbance contexts but information on the full acoustic repertoire is lacking for most species. Yet, this knowledge is critical to enable monitoring fish populations in nature through acoustic monitoring. Methods:In this study we characterized the sounds em...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8559
更新日期:2020-02-24 00:00:00
abstract::Although liver cirrhosis and hepatocellular carcinoma are major consequences of hepatitis C (HCV), there has been an increasing number of studies examining extrahepatic manifestations, especially those caused by systemic chronic inflammation and metabolic complications that might predispose HCV patients to atheroscler...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.10723
更新日期:2021-01-14 00:00:00
abstract::Recently, herbal drugs and their bioactive compounds have gained popularity in the management of diabetes mellitus (DM), which has become an epidemic disease all over the world and is especially prevalent in the Kingdom of Saudi Arabia (KSA). This study aimed to investigate the antidiabetic effect of ethanolic and aqu...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6441
更新日期:2019-02-18 00:00:00
abstract::Currently there are 21 shrimp species in the northeastern Atlantic and Mediterranean Sea which are considered to belong to the superfamily Oplophoroidea, but the larval development is unknown for most of them. The complete larval development of Systellaspis debilis (Milne-Edwards, 1881), here described and illustrated...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7334
更新日期:2019-09-18 00:00:00
abstract::It is an important issue whether microorganisms can live harmoniously with normal cells in the cardiovascular system. The answer to the question will have enormous impact on medical microbiology. To address the issue, it is essential to identify and characterize the bloodborne microbes in an efficient and comprehensiv...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7426
更新日期:2019-08-06 00:00:00
abstract::Protoporphyrin (PP) and biliverdin (BV) give rise to the enormous diversity in avian egg coloration. Egg color serves several ecological purposes, including post-mating signaling and camouflage. Egg camouflage represents a major character of open-nesting birds which accomplish protection of their unhatched offspring a...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3706
更新日期:2017-08-29 00:00:00
abstract::The eukaryotic polypyrimidine tract binding protein (PTB) serves primarily as a regulator of alternative splicing of messenger RNA, but is also co-opted to other roles such as RNA localisation and translation initiation from internal ribosome entry sites. The neuronal paralogue of PTB (nPTB) is 75% identical in amino ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.305
更新日期:2014-03-13 00:00:00
abstract::Natural and anthropogenic changes (e.g., land use change, pollution) will alter many environmental factors in the coming years, including the amount of solar radiation reaching the earth's surface. Alterations in solar radiation exposure is likely to impact the ecologies of many living organisms, including invertebrat...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6133
更新日期:2018-12-18 00:00:00
abstract::The Somali Sengi or Somali Elephant-shrew ('Elephantulus' revoilii, Macroscelidea, Mammalia) has been considered a "lost species" and is primarily known from about 39 museum specimens, with no new vouchered occurrence records since the early 1970s. The scientific literature contains no data concerning living Somali Se...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9652
更新日期:2020-08-18 00:00:00
abstract:Background:The distribution and use of camphor (Cinnamomum camphora L.) trees are constrained by increasing soil salinity in south-eastern China along the Yangtze River. However, the response mechanism of this species to salinity, especially in team of photosynthesis, are unknown. Methods:Here, we analysed themorpholo...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9443
更新日期:2020-08-07 00:00:00
abstract::Hydrozoans display the most morphological diversity within the phylum Cnidaria. While recent molecular studies have provided some insights into their evolutionary history, sister group relationships remain mostly unresolved, particularly at mid-taxonomic levels. Specifically, within Hydroidolina, the most speciose hyd...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1403
更新日期:2015-11-19 00:00:00
abstract::Plasma membrane NADPH oxidases, also named respiratory burst oxidase homologues (Rbohs), play pivotal roles in many aspects of growth and development, as well as in responses to hormone signalings and various biotic and abiotic stresses. Although Rbohs family members have been identified in several plants, little is k...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8404
更新日期:2020-01-17 00:00:00
abstract::The partitioning of production forests into discretely managed forest stands confronts animals with diversity in forest attributes at scales from point-level tree assemblages to distinct forest patches and range-level forest cover. We have investigated the movement and ranging patterns of male Common Chaffinches, Frin...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.368
更新日期:2014-06-19 00:00:00
abstract::Allium tenuissimum L. is a widely distributed perennial herbaceous species in temperate and desert steppes. Relative to other wild Allium species, it produces unique sweet flavors, more biomass in arid and cold environments, and has generated greater interest for crop production. Successful crop establishment, however...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8866
更新日期:2020-04-07 00:00:00
abstract::Populations undergoing rapid climate-driven range expansion experience distinct selection regimes dominated both by increased dispersal at the leading edges and steep environmental gradients. Characterisation of traits associated with such expansions provides insight into the selection pressures and evolutionary const...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.10352
更新日期:2020-11-19 00:00:00
abstract::Acontia, located in the gastrovascular cavity of anemone, are thread-like tissue containing numerous stinging cells which serve as a unique defense tissue against predators of the immobile acontiarian sea anemone. Although its morphology and biological functions, such as defense and digestion, have been studied, the d...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2996
更新日期:2017-02-21 00:00:00
abstract:Background:Cyclin A overexpression is found in a variety of human tumors and correlates with unfavorable outcome. We analyzed immunohistochemical expression of cyclin A in Wilms tumor (WT) in relation to clinicopathological characteristics, preoperative chemotherapy (PrOpChTh), and overall survival (OS). Methods:This ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6212
更新日期:2019-01-11 00:00:00
abstract:Background:Ontario, Canada is home to eight native species of turtles; all eight are federally listed as Species At Risk, due to anthropogenic threats. However, until recently, reports of infectious disease have been lacking. Ranavirus is seen as an emerging threat for ectotherms globally, with mass die-offs most often...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6987
更新日期:2019-05-20 00:00:00
abstract:BACKGROUND:Cloud forests, characterized by a persistent, frequent or seasonal low-level cloud cover and fragmented distribution, are one of the most threatened habitats, especially in the Neotropics. Tree ferns are among the most conspicuous elements in these forests, and ferns are restricted to regions in which minimu...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2696
更新日期:2016-11-16 00:00:00
abstract::Background. The ReproQuestionnaire (ReproQ) measures the client's experience with maternity care, following the WHO responsiveness model. In 2015, the ReproQ was appointed as national client experience questionnaire and will be added to the national list of indicators in maternity care. For using the ReproQ in quality...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2092
更新日期:2016-07-13 00:00:00
abstract::Metoposaurids are representatives of the extinct amphibian clade Temnospondyli, found on almost every continent exclusively in the Late Triassic deposits. Osteohistologically, it is one of the best-known temnospondyl groups, analyzed with a wide spectrum of methods, such as morphology, morphometry, bone histology or c...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9868
更新日期:2020-09-08 00:00:00
abstract:Aim:We aimed to translate and cross-culturally adapt the International Knee Documentation Committee-subjective knee form (IKDC) in Romanian. Method:The original (US) IKDC-subjective knee form was translated according to recommended guidelines. Validity was tested using Spearmans's correlation coefficient between score...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8448
更新日期:2020-02-03 00:00:00
abstract::Species identification-of importance for most biological disciplines-is not always straightforward as cryptic species hamper traditional identification. Fibre-optic near-infrared spectroscopy (NIRS) is a rapid and inexpensive method of use in various applications, including the identification of species. Despite its e...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.991
更新日期:2015-09-15 00:00:00
abstract:Background:Low-carbohydrate, high-fat (LCHF) diets are useful for treating a range of health conditions, but there is little research evaluating the degree of carbohydrate restriction on outcome measures. This study compares anthropometric and cardiometabolic outcomes between differing carbohydrate-restricted diets. O...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6273
更新日期:2019-02-05 00:00:00
abstract::A new species of freshwater crab, Fredius ibiapaba, is described and illustrated from a mid-altitude forested patch in Ipú (Ibiapaba plateau, Ceará, northeastern Brazil), between 635 to 782 m. The new species can be separated from its congeners by the morphology of its first gonopod: proximal half remarkably swollen, ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9370
更新日期:2020-06-29 00:00:00
abstract::The aim of this study was to identify the facets influencing job satisfaction and intention to quit of nurses employed in Turkey. Using a non-probability sampling technique, 417 nurses from six large private hospitals were surveyed from March 2014 to June 2014. The nurses' demographic data, their job-related satisfact...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1896
更新日期:2016-04-26 00:00:00