An amygdala-cingulate network underpins changes in effort-based decision making after a fitness program

Publication date: December 2019Source: NeuroImage, Volume 203Author(s): Javier Bernacer, Ivan Martinez-Valbuena, Martin Martinez, Nuria Pujol, Elkin O. Luis, David Ramirez-Castillo, Maria A. PastorAbstractWhen humans make decisions, objective rewards are mainly discounted by delay, risk and effort. Whereas recent research has demonstrated that several brain areas process costs and code subjective value in effort-based decision making, it remains obscure how neural activity patterns change when effort costs are reduced due to the acquisition of healthy habits, such as moving from sedentary to active lifestyles. Here, a sample of sedentary volunteers was behaviorally assessed and fMRI-scanned before and after completing a 3-month fitness plan. The impact of effort cost on decisions, measured as the constant defining a hyperbolic decaying function, was reduced after the plan. A logistic mixed model demonstrated that the explanatory power of effort decreased with time. At a neural level, there was a marginally significant disruption of effort-cost related functional activity in the anterior cingulate after the plan. Functional connectivity between the amygdala and anterior cingulate cortex was strengthened after habit acquisition. In turn, this interaction was stronger in those participants with lower effort discounting. Thus, we show for the first time changes in value-based decision making after moving from a sedentary to an active lifestyle, which points to the relevance of th...
Source: NeuroImage - Category: Neuroscience Source Type: research

Related Links:

This study assessed differences in clinical presentation, management and treatment success rate between spontaneous and ART-related EUP.
Source: The Journal of Minimally Invasive Gynecology - Category: OBGYN Authors: Tags: Virtual Poster Session 4: Hysteroscopy (1:00 PM — 1:10 PM) 1:00 PM STATION J Source Type: research
To evaluate the accuracy of bladder scanner measurements in assessing post-void residual (PVR) volumes in obese women [body mass index (BMI) ≥30 kg/m2] as compared to non-obese women (BMI
Source: The Journal of Minimally Invasive Gynecology - Category: OBGYN Authors: Tags: Virtual Poster Session 4: Urogynecology (1:40 PM — 1:50 PM) 1:40 PM STATION J Source Type: research
Conclusions: NSF was not found to be effective as sodium fluoride varnish and SDF on artificial enamel caries lesions. Additional investigation is needed to recommend it as an alternative agent to routine fluoride treatments.
Source: Oral health and Preventive dentistry - Category: Dentistry Source Type: research
Publication date: Available online 14 October 2019Source: Materials Today CommunicationsAuthor(s): Vinicius Henrique de Souza Rodrigues, Alexandre Estêvão Carrara, Sabrina Sara Rossi, Leandro Mattos Silva, Rita de Cássia Lazzarini Dutra, Jorge Carlos Narciso DutraAbstractThis paper shows the results obtained during the synthesis, characterization and self-healing qualitative capacity assessment microcapsules made of polyurethane (PU) shell, a product of emulsion polymerization reaction between diphenylmethane diisocyanate (MDI) and 1,4-butanediol, and within it, as the "encapsulated" self-heal...
Source: Materials Today Communications - Category: Materials Science Source Type: research
Publication date: Available online 13 October 2019Source: Materials Today CommunicationsAuthor(s): Daniel T. Oyekunle, Tomiwa I. Oguntade, Christiana S. Ita, Temiloluwa Ojo, Oyinkepreye D. OroduAbstractBinary mixture of sesame and castor oil has been investigated as a corrosion inhibitor for mild steel in brine solutions by weight loss, polarization techniques and scanning electron microscopy (SEM) analysis. Gas Chromatography–Mass Spectroscopy (GC-MS) analysis showed the presence of unsaturated compounds like oleic, steric and palmitic acid which are responsible for the corrosion inhibitory properties of the binary ...
Source: Materials Today Communications - Category: Materials Science Source Type: research
Publication date: Available online 14 October 2019Source: Materials Chemistry and PhysicsAuthor(s): Yang Lu, Qing Wang, Donghui Wen, Chuang Dong, Ruiqian Zhang, Peter K. LiawAbstractThe present work investigates the influence of minor-alloying element Ta on the microstructural evolution and mechanical properties of HR3C ASS (Fe-25Cr-22Ni-0.4Nb-0.18N-0.07C, wt. %) at elevated temperatures. Alloy ingots are prepared in a vacuum arc furnace and then hot-rolled, solid-solutioned at 1423 K/0.5 h, stabilized at 1173 K/0.5 h, and finally aged at 973 K for different hours (25 ∼ 408 h). The microstructure and precipitated phase...
Source: Materials Chemistry and Physics - Category: Materials Science Source Type: research
(Natural News) In his new book Catch And Kill, journalist Ronan Farrow blows the lid on failed presidential candidate Hillary Clinton’s corrupt influence in trying to subdue the dirty details of the Harvey Weinstein sexual assault scandal from going public. According to Farrow, Clinton’s publicist, Nick Merrill, contacted him at one point and tried to...
Source: NaturalNews.com - Category: Consumer Health News Source Type: news
ConclusionsAll patients with severe autism had SPAs. However, they did not correlate with FDG-PET findings.
Source: Indian Journal of Pediatrics - Category: Pediatrics Source Type: research
Severe thalamic injury can determine a particular type of vascular dementia affecting multiple network dysfunctions, considered the central role of thalamus as a hub for afferent and efferent stimuli. A 67-year-old male patient with bilateral thalamic stroke was studied with positron emission tomography, magnetic resonance imaging, and cognitive assessment, performed at baseline and at two follow-up evaluations. A pattern primarily involving thalamo-frontal connections was observed by both PET and tractography analyses. All significant differences between the patient and controls involved the anterior thalamic radiation, o...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
ConclusionActive screening for LGTI between 18 and 24  weeks shows high prevalence of BV in Indian setting. There is a strong link between partial BV and SPTB.
Source: The Journal of Obstetrics and Gynecology of India - Category: OBGYN Source Type: research
More News: Brain | Mergers and Aquisitions | Neurology | Neuroscience | PET Scan