Abstract:
:Interest is rising for animal modeling of pathological gambling. Using the operant probabilistic-delivery task (PDT), gambling proneness can be evaluated in laboratory animals. Drawing a comparison with rats, this study evaluated the common marmoset (Callithrix jacchus) using a PDT. By nose- or hand-poking, subjects learnt to prefer a large (LLL, 5-6 pellets) over a small (SS, 1-2 pellets) reward and, subsequently, the probability of occurrence of large-reward delivery was decreased progressively to very low levels (from 100% to 17% and 14%). As probability decreased, subjects showed a great versus little shift in preference from LLL to SS reinforcer. Hence, two distinct subpopulations ("non-gambler" versus "gambler") were differentiated within each species. A proof of the model validity comes from marmosets' reaction to reward-delivery omission. Namely, depending on individual temperament ("gambler" versus "non-gambler"), they showed either persistence (i.e., inadequate pokes towards LLL) or restlessness (i.e., inadequate pokes towards SS), respectively. In conclusion, the marmoset could be a suitable model for preclinical gambling studies. Implementation of the PDT to species other than rats may be relevant for determining its external validity/generalizability and improving its face/construct validity.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Zoratto F,Sinclair E,Manciocco A,Vitale A,Laviola G,Adriani Wdoi
10.1155/2014/927685subject
Has Abstractpub_date
2014-01-01 00:00:00pages
927685eissn
2314-6133issn
2314-6141journal_volume
2014pub_type
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/238139
更新日期:2015-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
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更新日期:2015-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/389723
更新日期:2013-01-01 00:00:00
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journal_title:BioMed research international
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abstract::Mycobacterium bovis causes classic bovine tuberculosis, a zoonosis which is still a concern in Africa. Biofilm forming ability of two Mycobacterium bovis strains was assessed on coupons of cement, ceramic, or stainless steel in three different microbiological media at 37°C with agitation for 2, 3, or 4 weeks to determ...
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abstract::Background. Endemic areas of tegumentary leishmaniasis (TL) in Salta, Argentina, present some overlap zones with the geographical distribution of Chagas disease, with mixed infection cases being often detected. Objectives. The purpose of this study was to determine the magnitude of Leishmania sp. infection and potenti...
journal_title:BioMed research international
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/841798
更新日期:2014-01-01 00:00:00
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更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
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journal_title:BioMed research international
pub_type: 杂志文章
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更新日期:2019-12-09 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/672926
更新日期:2014-01-01 00:00:00
abstract::In vitro studies reveal that androgens, oestrogens, and their metabolites play a crucial role in prostate homeostasis. Most of the studies evaluated intraprostatic hormone metabolism using cell lines or preprocessed specimens. Using an ex vivo model of intact tissue cultures with preserved architecture, we characteriz...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/464869
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/3074742
更新日期:2020-03-07 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,随机对照试验
doi:10.1155/2019/6274719
更新日期:2019-04-11 00:00:00
abstract::Influenza virus contains two highly variable envelope glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Here we show that, while HA evolution is much more complex than NA evolution, it still shows abrupt punctuation changes linked to punctuation changes of NA. HA exhibits proteinquakes, which resemble earthqua...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/243162
更新日期:2015-01-01 00:00:00
abstract::Chloroplasts are key organelles in the management of oxygen in algae and plants and are therefore crucial for all living beings that consume oxygen. Chloroplasts typically contain a circular DNA molecule with nucleus-independent replication and heredity. Using "palindrome analyser" we performed complete analyses of sh...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/1097018
更新日期:2018-07-24 00:00:00
abstract::Using the dual-process model of assimilative-tenacity (TGP) and accommodative-flexibility (FGA), the study aims to identify trajectories of TGP and FGA over five time points within a 9-year period, explore the relationships between the trajectories of TGP and FGA, and explore if participants from distinct TGP and FGA ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/8017541
更新日期:2017-01-01 00:00:00
abstract:Purpose:To evaluate the influence of systemic and ocular factors on the foveal avascular zone (FAZ) area in young Chinese subjects' healthy eyes. Methods:The current observational, cross-sectional study included 344 eyes from 172 healthy individuals (103 women, 69 men). Optical coherence tomography angiography realize...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/7361492
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journal_title:BioMed research international
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doi:10.1155/2020/4307385
更新日期:2020-05-26 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2016/9647156
更新日期:2016-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/8412957
更新日期:2020-04-14 00:00:00
abstract::The genus Methylobacterium is composed of pink-pigmented facultative methylotrophic (PPFM) bacteria, which are able to synthesize carotenoids and grow on reduced organic compounds containing one carbon (C1), such as methanol and methylamine. Due to their high phenotypic plasticity, these bacteria are able to colonize ...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/909016
更新日期:2015-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/435737
更新日期:2015-01-01 00:00:00
abstract::The total knee arthroplasty (TKA) is the gold standard for patients with an advanced symptomatic gonarthrosis. However, there are very few publications dealing with the primary TKA for patients with a proximal tibia fracture. In our retrospective study we evaluated 30 patients treated with a TKA for a proximal tibia f...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/6047876
更新日期:2016-01-01 00:00:00
abstract:Aim:To investigate the effect of fecal microbiota transplantation on visceral hypersensitivity compared with Bifidobacterium longum. Methods:Mice visceral hypersensitivity was induced by Trichinella spiralis. After 8 weeks, they were divided into three groups (controls, Bifidobacterium longum, and fecal microbiota tra...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/3860743
更新日期:2018-01-30 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/2647879
更新日期:2017-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/539238
更新日期:2015-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2017/1953076
更新日期:2017-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/318364
更新日期:2015-01-01 00:00:00