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Behavioural Brain Research

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https://www.readbyqxmd.com/read/28110004/physiological-responses-associated-with-cultural-attachment
#1
Wei Jie Yap, George I Christopoulos, Ying-Yi Hong
Cultural attachment (CA) suggests that cultural symbols can function as attachment figures, in a similar way to prototypical maternal attachment figures. In order to further understand the psychophysiological mechanisms of CA, we examine whether cultural symbols regulate peripheral physiological indicators of arousal in response to symbolic threats. We supraliminally expose participants to neutral or threatening stimuli, followed by the subliminal presentation of CA and control images, while recording their Skin Conductance Responses (SCR)...
January 18, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28110003/bottlenose-dolphins-engaging-in-more-social-affiliative-behaviour-judge-ambiguous-cues-more-optimistically
#2
Isabella L K Clegg, Heiko G Rödel, Fabienne Delfour
Cognitive bias tests measure variation in emotional appraisal and are validated methods to evaluate animals' affective states. However, the link between social behaviours and cognitive bias has not yet been investigated. Bottlenose dolphins are a gregarious species for whom welfare research is increasing in importance, and thus are a good model to test such an association. We adapted a spatial location judgement bias test for eight captive bottlenose dolphins to investigate the link between cognitive bias and social behaviour, where we conducted behavioural observations outside of training sessions and did not experimentally induce an affective state...
January 18, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28108322/effect-of-zbd-2-on-chronic-pain-depressive-like-behaviors-and-recovery-of-motor-function-following-spinal-cord-injury-in-mice
#3
Xiao-Ming Li, Jia Meng, Lin Tao Li, Ting Guo, Liu-Kun Yang, Qi-Xin Shi, Xu-Bo Li, Yong Chen, Qi Yang, Jian-Ning Zhao
In addition to debilitating sensory and motor deficits, patients with spinal cord injury (SCI) may experience chronic hyperpathic pain (SCI-pain). Recent studies have revealed that translocator protein (TSPO) is involved in repairing neural cells as well as reducing anxiety and depression. However, the role of TSPO in SCI-pain and pain-induced depression remains unknown. The present study aimed to determine the effects of a new TSPO ligand, ZBD-2, on SCI-pain and consequent pain-induced depressive-like behaviors in mice...
January 17, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28108321/virtual-reality-conditioned-place-preference-using-monetary-reward
#4
Emma Childs, Robert S Astur, Harriet de Wit
Computerized tasks based on conditioned place preference (CPP) methodology offer the opportunity to study learning mechanisms involved in conditioned reward in humans. In this study, we examined acquisition and extinction of a CPP for virtual environments associated with monetary reward ($). Healthy men and women (N=57) completed a computerized CPP task in which they controlled an avatar within a virtual environment. On day 1, subjects completed 6 conditioning trials in which one room was paired with high $ and another with low $...
January 17, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28108320/modulation-on-brain-gray-matter-activity-and-white-matter-integrity-by-apoe-%C3%AE%C2%B54-risk-gene-in-cognitively-intact-elderly-a-multimodal-neuroimaging-study
#5
Suping Cai, Yuanyuan Jiang, Yubo Wang, Xiaoming Wu, Junchan Ren, Min Seob Lee, Sunghoon Lee, Liyu Huang
Apolipoprotein E (APOE) ε4 allele is the genetic risk factor with the most established evidence for sporadic Alzheimer's disease. Previous neuroimaging studies have demonstrated insufficiently consistent functional and structural changes among healthy APOE ε4 carriers when compared to non-carriers. Here, in a cognitively intact elderly group (a total of 110: 45 APOE ε4 carriers, 65 non-carriers), we aimed to investigate the potential role of APOE ε4 in the modulation of grey matter activity, white matter integrity, and brain morphology before the development of clinically significant symptoms and signs, by methods of: amplitude of low frequency fluctuations and regional homogeneity analysis based on resting state fMRI, and fiber tractography approach based on diffusion tensor imaging...
January 17, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28104461/cxcr4-antagonist-amd3100-reverses-the-neurogenesis-promoted-by-enriched-environment-and-suppresses-long-term-seizure-activity-in-adult-rats-of-temporal-lobe-epilepsy
#6
Zhike Zhou, Tingting Liu, Xiaoyu Sun, Xiaopeng Mu, Gang Zhu, Ting Xiao, Mei Zhao, Chuansheng Zhao
It has been showed that enriched environment (EE) enhances the hippocampal neurogenesis and improves the cognitive impairments, accompanied by the increased expressions of stromal cell-derived factor-1 (SDF-1) in adult rats of temporal lobe epilepsy (TLE). We examined whether the enhanced neurogenesis and improved cognitive functions induced by EE following seizures were mediated by SDF-1/CXCR4 pathway. Therefore, we investigated the effects of the EE combined with CXCR4 antagonist AMD3100 on neurogenesis, cognitive functions and the long-term seizure activity in the TLE model...
January 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28093257/selective-preservation-of-cholinergic-mecp2-rescues-specific-rett-syndrome-like-phenotypes-in-mecp2-stop-mice
#7
Huanhuan Zhou, Wei Wu, Ying Zhang, Haiyang He, Zhefeng Yuan, Zhiwei Zhu, Zhengyan Zhao
RTT is a neurodevelopmental disorder characterized by growth regression, motor dysfunction, stereotypic hand movements, and autism features. Typical Rett syndrome (RTT) is predominantly caused by mutations in X-linked MeCP2 gene which encodes methyl-CpG-binding protein 2 (MeCP2). The brain-abundant MeCP2 protein mainly functions as a transcriptional regulator for neurodevelopment-associated genes. Specific functions of MeCP2 in certain neuron types remain to be known. Although cholinergic system is an important modulating system in brain, how MeCP2 in cholinergic neurons contribute to RTT has not been clearly understood...
January 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28093256/effects-of-gut-microbiota-on-the-microrna-and-mrna-expression-in-the-hippocampus-of-mice
#8
Jian-Jun Chen, Ben-Hua Zeng, Wen-Wen Li, Chan-Juan Zhou, Song-Hua Fan, Ke Cheng, Li Zeng, Peng Zheng, Liang Fang, Hong Wei, Peng Xie
BACKGROUNDS: Gut microbiota is increasingly recognized as an important environmental factor that could influence the brain function and behaviors through the microbiota-gut-brain axis. METHOD: Here, we used the germ-free (GF) mice to explore the effect of gut microbiota on hippocampal microRNA (miRNA) and messenger RNAs (mRNAs) expression. RESULTS: Behavioral tests showed that, compared to specific pathogen-free (SPF) mice, the GF mice displayed more center time, center distance and less latency to familiar food...
January 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28093255/nlrp3-gene-knockout-blocks-nf-%C3%AE%C2%BAb-and-mapk-signaling-pathway-in-cums-induced-depression-mouse-model
#9
Wen-Jun Su, Yi Zhang, Ying Chen, Hong Gong, Yong-Jie Lian, Wei Peng, Yun-Zi Liu, Yun-Xia Wang, Zi-Li You, Shi-Jie Feng, Ying Zong, Guo-Cai Lu, Chun-Lei Jiang
BACKGROUND: Abundant researches indicate that neuroinflammation has important roles in the pathophysiology of depression. Our previous study found that the NLRP3 inflammasome mediated stress-induced depression-like behavior in mice via regulating neuroinflammation. However, it still remains unclear that how the NLRP3 inflammasome influences related inflammatory signaling pathway to contribute to neuroinflammation in depression. METHODS: We used wild-type mice and NLRP3 gene knockout mice to explore the role of NLRP3 inflammasome and related inflammatory signaling pathways in chronic unpredictable mild stress (CUMS) induced depression mouse model...
January 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28093254/risperidone-ameliorated-a%C3%AE-1-42-induced-cognitive-and-hippocampal-synaptic-impairments-in-mice
#10
Lingzhi Wu, Xiaowen Feng, Tingting Li, Baojuan Sun, Muhammad Zahid Khan, Ling He
Alzheimer's disease (AD) is a complex neurodegenerative disorder with cognitive impairment and major neuropathologic hallmark of amyloid-beta (Aβ) peptides. Risperidone, an atypical antipsychotic, can improve concentration and cognitive deficit in schizophrenia patients. In this study, behavior tests including Morris Water Maze test, Step-through passive avoidance test, Open Field test, Step-Down test, Hole-Board test and Novel object recognition test were preformed to examine the effect of Risperidone on Aβ1-42-induced cognitive dysfunction in both long-term and short-term memory...
January 13, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28089851/neuregulin-1-mutant-mice-indicate-motor-and-sensory-deficits-indeed-few-references-for-schizophrenia-endophenotype-model
#11
Silvia Schneider, Katja Götz, Carmen Birchmeier, Herbert Schwegler, Thomas Roskoden
Neuregulins (Nrg) are a gene family that binds to tyrosine kinase receptors of the ErbB family. The protein of Nrg1 is to be involved in heart formation, migration of neurons, axonal pathfinding and synaptic function. A relation between Nrg1 and schizophrenia is assumed. Chronic impairment in schizophrenia is characterized by different positive and negative symptoms. Detectable markers of this disease in human and in animal models are activity, social behavior and sensory processing. In this study we compared heterozygous Nrg1 mutant mice in behavior and quantification of dopaminergic and serotoninergic neurons with wild type-like littermates...
January 13, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28089855/peripheral-electrical-stimulation-increases-corticomotor-excitability-and-enhances-the-rate-of-visuomotor-adaptation
#12
Simon J Summers, Siobhan M Schabrun, Welber Marinovic, Lucy S Chipchase
Peripheral electrical stimulation (PES) modulates corticomotor excitability but its effect on motor performance has not been thoroughly investigated. The purpose of this study was to assess whether increases and/or decreases in corticomotor excitability, induced by PES, influenced motor performance using a visuomotor adaptation task. Three PES interventions (motor stimulation, sensory stimulation or sham) were delivered to the first dorsal interosseous (FDI) in 30 healthy participants matched for age, gender and handedness...
January 12, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28089854/effects-of-adolescent-methamphetamine-and-nicotine-exposure-on-behavioral-performance-and-map-2-immunoreactivity-in-the-nucleus-accumbens-of-adolescent-mice
#13
Jordan M Buck, Alysse S Morris, Sydney J Weber, Jacob Raber, Jessica A Siegel
The neurotoxic effects of methamphetamine (MA) exposure in the developing and adult brain can lead to behavioral alterations and cognitive deficits in adults. Previous increases in the rates of adolescent MA use necessitate that we understand the behavioral and cognitive effects of MA exposure during adolescence on the adolescent brain. Adolescents using MA exhibit high rates of nicotine (NIC) use, but the effects of concurrent MA and NIC in the adolescent brain have not been examined, and it is unknown if NIC mediates any of the effects of MA in the adolescent...
January 12, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28089853/region-specific-increases-in-fosb-%C3%AE-fosb-immunoreactivity-in-the-rat-brain-in-response-to-chronic-sleep-restriction
#14
Shannon Hall, Samüel Deurveilher, Kristin Robin Ko, Joan Burns, Kazue Semba
Using a rat model of chronic sleep restriction (CSR) featuring periodic sleep deprivation with slowly rotating wheels (3h on/1h off), we previously observed that 99h of this protocol induced both homeostatic and allostatic (adaptive) changes in physiological and behavioural measures. Notably, the initial changes in sleep intensity and attention performance gradually adapted during CSR despite accumulating sleep loss. To identify brain regions involved in these responses, we used FosB/ΔFosB immunohistochemistry as a marker of chronic neuronal activation...
January 12, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28089852/dopamine-d1-receptor-agonist-treatment-attenuates-extinction-of-morphine-conditioned-place-preference-while-increasing-dendritic-complexity-in-the-nucleus-accumbens-core
#15
Kendra L Kobrin, Danielle T Arena, Stephen C Heinrichs, Olivia H Nguyen, Gary B Kaplan
The dopamine D1 receptor (D1R) has a role in opioid reward and conditioned place preference (CPP), but its role in CPP extinction is undetermined. We examined the effect of D1R agonist SKF81297 on the extinction of opioid CPP and associated dendritic morphology in the nucleus accumbens (NAc), a region involved with reward integration and its extinction. During the acquisition of morphine CPP, mice received morphine and saline on alternate days; injections were given immediately before each of eight daily conditioning sessions...
January 12, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28088471/effects-of-group-i-metabotropic-glutamate-receptor-antagonists-on-sensitivity-to-reinforcer-magnitude-and-delayed-reinforcement-in-a-delay-discounting-task-in-rats-contribution-of-delay-presentation-order
#16
Justin R Yates, Katherine K Rogers, Benjamin T Gunkel, Nicholas A Prior, Mallory N Hughes, Sara M Sharpe, Hunter L Campbell, Anthony B Johnson, Margaret G Keller, Kerry A Breitenstein, Hansen N Shults
Metabotropic glutamate receptor 1 (mGluR1) blockade has been shown to decrease impulsive choice, as measured in delay discounting. However, several variables are known to influence an animal's discounting, including sensitivity to delayed reinforcement and sensitivity to reinforcer magnitude. The goal of this experiment was to determine the effects of mGluR1, as well as mGluR5, antagonism on these parameters. Forty Sprague Dawley rats were trained in delay discounting, in which consistently choosing a small, immediate reward reflects impulsive choice...
January 12, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28087280/increased-homocysteine-levels-impair-reference-memory-and-reduce-cortical-levels-of-acetylcholine-in-a-mouse-model-of-vascular-cognitive-impairment
#17
Kevin Dam, Martina Füchtemeier, Tracy D Farr, Philipp Boehm-Sturm, Marco Foddis, Ulrich Dirnagl, Olga Malysheva, Marie A Caudill, Nafisa M Jadavji
Folates are B-vitamins that are vital for normal brain function. Deficiencies in folates either genetic (methylenetetrahydrofolate reductase, MTHFR) or dietary intake of folic acid result in elevated levels of homocysteine. Clinical studies have shown that elevated levels of homocysteine (Hcy) may be associated with the development of dementia, however this link remains unclear. The purpose of this study was to evaluate the impact of increased Hcy levels on a mouse model of vascular cognitive impairment (VCI) produced by chronic hypoperfusion...
January 11, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28082194/bidirectional-relationship-of-mast-cells-neurovascular-unit-communication-in-neuroinflammation-and-its-involvement-in-pocd
#18
REVIEW
Nana Li, Xiang Zhang, Hongquan Dong, Youli Hu, Yanning Qian
Postoperative cognitive dysfunction (POCD) has been hypothesized to be mediated by surgery-induced neuroinflammation, which is also a key element in the pathobiology of neurodegenerative diseases, stroke, and neuropsychiatric disorders. There is extensive communication between the immune system and the central nervous system (CNS). Inflammation resulting from activation of the innate immune system cells in the periphery can impact central nervous system behaviors, such as cognitive performance. Mast cells (MCs), as the"first responders" in the CNS, can initiate, amplify, and prolong other immune and nervous responses upon activation...
January 9, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28077315/inhibition-of-inos-alleviates-cognitive-deficits-and-depression-in-diabetic-mice-through-downregulating-the-no-sgc-cgmp-pkg-signal-pathway
#19
Xiao Yan Zhou, Fang Zhang, Chang Jiang Ying, Jing Chen, Ling Chen, Jing Dong, Yue Shi, Mang Tang, Xiao Tong Hu, Zhi Hua Pan, Na Na Xu, Kui Yang Zheng, Ren Xian Tang, Yuan Jian Song
Diabetes mellitus often results in a number of complications involving impaired brain function, including cognitive deficits and depression. However, the potential mechanisms for diabetes-related cognitive deficits and depression are not fully understood. Neurons in the hippocampal, cortical and amygdala functional regions are more susceptible to damage during hyperglycemia. Neuroprotection in the brain can rescue cognitive deficits and depression induced by hyperglycemia. This study investigated the potential mechanisms underlying diabetes-related congnitive deficits and depression, determined whether the inflammatory factor inducible nitric oxide synthase (iNOS) and the nitric oxide (NO)/soluble guanylyl cyclases (sGC)/cyclic guanosine monophosphate (cGMP)/protein kinase G (PKG) pathway, play key roles in cognitive deficits and depression associated...
January 8, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28069411/age-related-alterations-of-neuronal-excitability-and-voltage-dependent-ca-2-current-in-a-spontaneous-mouse-model-of-alzheimer-s-disease
#20
Hua-Long Wang, Xiao-Hui Xian, Qiao-Yun Song, Chao Pang, Jia-Lei Wang, Ming-Wei Wang, Wen-Bin Li
Alzheimer's disease (AD) is the most common age-dependent neurodegenerative disorder, characterized by a progressive dysfunction of central neurons, and senescence-accelerated mouse prone 8 (SAMP8), a spontaneous AD mouse model, appears to be an excellent model to investigate the process of AD. Previous studies have indicated that neuronal excitability is impaired in transgenic AD mice. In this study, the cognition of SAMP8 mice was tested using the passive avoidance task and Morris water maze; whole-cell current-clamp recordings were used to evaluate the neuronal excitability, including the resting membrane potential, the number of action potentials, and after-hyperpolarization; and the voltage-dependent Ca(2+) current in hippocampal slices was measured using whole-cell voltage-clamp recordings...
January 6, 2017: Behavioural Brain Research
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