AI Article Synopsis
Article Abstract
Many decisions involve uncertainty, or 'risk', regarding potential outcomes, and substantial empirical evidence has demonstrated that human aging is associated with diminished tolerance for risky rewards. Grey matter volume in a region of right posterior parietal cortex (rPPC) is predictive of preferences for risky rewards in young adults, with less grey matter volume indicating decreased tolerance for risk. That grey matter loss in parietal regions is a part of healthy aging suggests that diminished rPPC grey matter volume may have a role in modulating risk preferences in older adults. Here we report evidence for this hypothesis and show that age-related declines in rPPC grey matter volume better account for age-related changes in risk preferences than does age per se. These results provide a basis for understanding the neural mechanisms that mediate risky choice and a glimpse into the neurodevelopmental dynamics that impact decision-making in an aging population.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5159889 | PMC |
| http://dx.doi.org/10.1038/ncomms13822 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Altered cerebral gray matter volume and functional connectivity in patients with residual dizziness of benign paroxysmal positional vertigo.
Clin Radiol
December 2024
Department of Neurology, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China. Electronic address:
Aim: To provide a theoretical basis for the study of the pathogenesis of residual dizziness (RD) from the perspective of imaging.
Materials And Methods: The general clinical data of the RD group and healthy control (HC) group were statistically analysed by two independent sample t tests, rank sum tests or chi-square tests. The imaging data of the two groups of people were preprocessed and statistically analysed by using the data processing and analysis for brain imaging (DPABI) software package.
Educational attainment, Aβ, tau, and structural brain reserve in Alzheimer's disease.
Alzheimers Dement
January 2025
Institute of Neurological and Psychiatric Disorders, Shenzhen Bay Laboratory, Shenzhen, China.
Introduction: Alzheimer's disease (AD) patients with higher educational attainment (EA) often exhibit better cognitive function. However, the relationship among EA status, AD pathology, structural brain reserve, and cognitive decline requires further investigation.
Methods: We compared cognitive performance across different amyloid beta (Aβ) positron emission tomography (A ±) statuses and EA levels (High EA/Low EA).
Early functional and structural hippocampal impairment in a bilateral common carotid artery stenosis mouse model.
Animal Model Exp Med
January 2025
Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.
Background: Subcortical ischemic vascular dementia (SIVD) is a common subtype of vascular dementia. Currently, the bilateral common carotid artery stenosis (BCAS) mouse model is the most suitable SIVD rodent model. In this study, we investigated the functional and structural impairments in the hippocampus 1 month after BCAS.
View Article and Find Full Text PDFCharacterizing the underlying microangiopathy of deep cerebellar intracerebral hemorrhage.
J Neurol
January 2025
Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Introduction: While cerebral amyloid angiopathy is likely responsible for intracerebral hemorrhage (ICH) occurring in superficial (grey matter, vermis) cerebellar locations, it is unclear whether hypertensive arteriopathy (HA), the other major cerebral small vessel disease (cSVD), is associated with cerebellar ICH (cICH) in deep (white matter, deep nuclei, cerebellar peduncle) regions. We tested the hypothesis that HA-associated neuroimaging markers are significantly associated with deep cICH compared to superficial cICH.
Patients And Methods: Brain MRI scans from consecutive non-traumatic cICH patients admitted to a referral center were analyzed for cSVD markers.
Spinal cord cross sign: a potential marker for hereditary spastic paraplegia type 5.
Neuroradiology
January 2025
Department of Radiology, The First Affiliated Hospital of Fujian Medical University, No. 20, Chazhong Rd., Taijiang District, Fuzhou, 350005, Fujian, China.
Purpose: Spastic paraplegia type 5 (SPG5) is a rare neurodegenerative disease diagnosed primarily through genetic testing.We identified a specific spinal cord sign on conventional MR imaging to help narrow the scope of genetic screening.
Methods: In 25 patients with SPG5 and 21 healthy controls (HCs), the spinal cord cross sign was evaluated on T2*-weighted imaging.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!