Today, neuroscientists have access to a host of advanced techniques -- ranging from targeted genetic interventions to brain imaging -- that are rapidly providing new insights. Ultimately, however, memory must be inferred from its behavioral read-out. Thus, to fully utilize the advanced technologies available today, we must select the most appropriate behavioral procedures from those currently available, or else devise novel behavioral techniques to meet a specific demand. If we merely use standard tests of memory in a non-optimal way, we risk collecting incomplete information and reaching erroneous conclusions. Relevant to these issues, there have been substantial developments in the methods used to evaluate two of the most frequently studied forms of memory in the rodent -- recognition memory and spatial memory.
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http://dx.doi.org/10.1016/j.conb.2005.08.014 | DOI Listing |
Food Chem Toxicol
January 2025
Department of Occupational and Environmental Health, School of Public Health, Jinzhou Medical University, Jinzhou, Liaoning, PR China. Electronic address:
Flame retardant polybrominated diphenyl ethers (PBDEs) accumulate in human bodies through food and dust ingestion, and cause neurobehavioral deficits with obscure mechanism. We aimed to investigate NMDAR-CaMKⅡγ-mediated synapse-to-nuclear communication involved in BDE-209-induced cognitive impairment, and alleviation from exogenous melatonin. Decreased NMDAR subunits GluN2A and 2B, autophosphorylation of CaMKⅡα, and postsynaptic GluA1 trafficking were observed in the hippocampus of juvenile rats after maternal BDE-209 exposure.
View Article and Find Full Text PDFInt J Pharm
January 2025
MMDN, University of Montpellier, EPHE, INSERM, Montpellier, France; LipSTIC LabEx (ANR-11-LABX0021), Dijon, France. Electronic address:
Reduced docosahexaenoic acid (DHA) concentrations seem to be associated with an increased risk of Alzheimer's disease (AD), and DHA accretion to the brain across the blood-brain-barrier (BBB) can be modulated by various factors. Therefore, there is an urgent need to identify an efficient and non-invasive method to ensure brain DHA enrichment. In the present study, a safe and stable DHA-enriched nanoemulsion, designed to protect DHA against oxidation, was designed and administered intranasally in a transgenic mouse model of AD, the J20 mice.
View Article and Find Full Text PDFNeuroimage
January 2025
Department of Diagnostic Radiology, City of Hope National Medical Center, 1500 E Duarte, CA 91010, USA.
Background: The aim of this study was to establish an iron overload rat model to simulate the elevated iron levels in patients with thalassemia and to investigate the potential association between hippocampal iron deposition and cognition.
Methods: Two groups of iron overloaded rats and one group of control rats were used for this study. The Morris water maze (MWM) was used to test spatial reference memory indicated by escape latency time and number of MWM platform crossings.
Gynecol Oncol
January 2025
Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London, UK. Electronic address:
Objective: Vulvar squamous cell carcinoma (VSCC) can be either HPV-dependent (HPVd) or HPV-independent (HPVi). HPVd VSCC typically occurs in younger women, has a more favorable prognosis, and develops from high-grade squamous intraepithelial lesions (HSIL). HPVi VSCC predominantly affects older women and arises within areas of chronic inflammation, particularly lichen sclerosis (LS).
View Article and Find Full Text PDFBehav Neurosci
January 2025
Department of Psychology and Program in Neuroscience, Providence College.
The posterior parietal cortex (PPC) is an associative neocortical region that integrates multiple streams of information and is implicated in spatial cognition and decision making. In some cases, however, the PPC is not required for these functions. One possibility is that the PPC is recruited when spatial complexity is high.
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