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https://www.readbyqxmd.com/read/28716096/optimizing-reproducibility-of-operant-testing-through-reinforcer-standardization-identification-of-key-nutritional-constituents-determining-reward-strength-in-touchscreens
#1
Eun Woo Kim, Benjamin U Phillips, Christopher J Heath, So Yeon Cho, Hyunjeong Kim, Jemeen Sreedharan, Ho-Taek Song, Jong Eun Lee, Timothy J Bussey, Chul Hoon Kim, Eosu Kim, Lisa M Saksida
Reliable and reproducible assessment of animal learning and behavior is a central aim of basic and translational neuroscience research. Recent developments in automated operant chamber technology have led to the possibility of universal standard protocols, in addition to increased translational potential, reliability and accuracy. However, the impact of regional and national differences in the supplies of available reinforcers in this system on behavioural performance and inter-laboratory variability is an unknown and at present uncontrolled variable...
July 17, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28681089/a-novel-test-for-evaluating-horses-spontaneous-visual-attention-is-predictive-of-attention-in-operant-learning-tasks
#2
C Rochais, M Sébilleau, M Houdebine, P Bec, M Hausberger, S Henry
Attention is described as the ability to process selectively one aspect of the environment over others. In this study, we characterized horses' spontaneous attention by designing a novel visual attention test (VAT) that is easy to apply in the animal's home environment. The test was repeated over three consecutive days and repeated again 6 months later in order to assess inter-individual variations and intra-individual stability. Different patterns of attention have been revealed: 'overall' attention when the horse merely gazed at the stimulus and 'fixed' attention characterized by fixity and orientation of at least the visual and auditory organs towards the stimulus...
August 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/28487067/selective-and-interactive-effects-of-d2-receptor-antagonism-and-positive-allosteric-mglur4-modulation-on-waiting-impulsivity
#3
Sarah N Isherwood, Trevor W Robbins, Janet R Nicholson, Jeffrey W Dalley, Anton Pekcec
BACKGROUND: Metabotropic glutamate receptor 4 (mGluR4) and dopamine D2 receptors are specifically expressed within the indirect pathway neurons of the striato-pallidal-subthalamic pathway. This unique expression profile suggests that mGluR4 and D2 receptors may play a cooperative role in the regulation and inhibitory control of behaviour. We investigated this possibility by testing the effects of a functionally-characterised positive allosteric mGluR4 modulator, 4-((E)-styryl)-pyrimidin-2-ylamine (Cpd11), both alone and in combination with the D2 receptor antagonist eticlopride, on two distinct forms of impulsivity...
May 6, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28418405/adenosine-a2a-receptor-and-erk-driven-impulsivity-potentiates-hippocampal-neuroblast-proliferation
#4
A Oliveros, C H Cho, A Cui, S Choi, D Lindberg, D Hinton, M-H Jang, D-S Choi
Dampened adenosine A2A receptor (A2AR) function has been implicated in addiction through enhancement of goal-directed behaviors. However, the contribution of the A2AR to the control of impulsive reward seeking remains unknown. Using mice that were exposed to differential reward of low rate (DRL) schedules during Pavlovian-conditioning, second-order schedule discrimination, and the 5-choice serial reaction time task (5-CSRTT), we demonstrate that deficits of A2AR function promote impulsive responses. Antagonism of the A2AR lowered ERK1 and ERK2 phosphorylation in the dorsal hippocampus (dHip) and potentiated impulsivity during Pavlovian-conditioning and the 5-CSRTT...
April 18, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28386698/comparison-of-some-behavioral-effects-of-d-and-l-methamphetamine-in-adult-male-rats
#5
Justin N Siemian, Zhaoxia Xue, Bruce E Blough, Jun-Xu Li
RATIONALE: Both l- and d-methamphetamine (l- and d-MA) are more potent to release norpepinephrine (NE) than dopamine, and the selectivity is greater for l-MA than d-MA. Little is known of the in vivo pharmacology of l-MA. OBJECTIVE: This study compared the effects of l-MA and d-MA in assays of nociception, behavioral disruption, and impulsivity. METHODS: Antinociceptive effects of d- and l-MA were examined in two pain assays: the warm water tail withdrawal test for acute nociception and the von Frey test in complete Freund's adjuvant (CFA)-treated rats for chronic inflammatory pain...
July 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28386221/deep-brain-stimulation-of-the-nucleus-accumbens-core-affects-trait-impulsivity-in-a-baseline-dependent-manner
#6
Maria C Schippers, Bastiaan Bruinsma, Mathijs Gaastra, Tanja I Mesman, Damiaan Denys, Taco J De Vries, Tommy Pattij
Deep brain stimulation (DBS) of the nucleus accumbens (NA) is explored as a treatment for refractory psychiatric disorders, such as obsessive-compulsive disorder (OCD), depressive disorder (MDD), and substance use disorder (SUD). A common feature of some of these disorders is pathological impulsivity. Here, the effects of NAcore DBS on impulsive choice and impulsive action, two distinct forms of impulsive behavior, were investigated in translational animal tasks, the delayed reward task (DRT) and five-choice serial reaction time task (5-CSRTT), respectively...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28378204/a-schizophrenia-relevant-5-choice-serial-reaction-time-task-for-mice-assessing-broad-monitoring-distractibility-and-impulsivity
#7
Huiping Huang, Simone Guadagna, Maddalena Mereu, Mariasole Ciampoli, Giacomo Pruzzo, Theresa Ballard, Francesco Papaleo
The 5-Choice Serial Reaction Time Task (5-CSRTT) is an automated test for rodents allowing the assessment of multiple cognitive measures. Originally designed to assess cognitive deficits relevant to attention deficit hyperactivity disorder, it has been widely used in the investigation of neural systems of attention. In the current study, we have set up a modified version, which reduced the training phase to only 8-9 days with minimal food deprivation and without single-housing. Furthermore, based on evidence that patients with schizophrenia are more impaired in broad monitoring abilities than in sustained attention, we successfully developed a protocol replicating the Spatial Attentional Resource Allocation Task (SARAT), used in humans to assess broad monitoring...
April 5, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28314950/-waiting-impulsivity-in-isolation-reared-and-socially-reared-rats-effects-of-amphetamine
#8
Yia-Ping Liu, Lawrence S Wilkinson, Trevor W Robbins
BACKGROUND: Rats reared in social isolation exhibit various cognitive and behavioural abnormalities in adulthood. However, impulsivity following this treatment still remains unclear, especially in response to medications used in attention deficit hyperactivity disorder, such as amphetamine. METHODS: Using an isolation-rearing (IR) manipulation, the present study examined the effects of IR on impulsive action and impulsive choice when also treated with doses of D-amphetamine, by employing the five-choice serial reaction time task (5-CSRTT) and a temporal discounting of reward task (TDRT), respectively...
May 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28209774/methyl-donor-supplementation-alters-cognitive-performance-and-motivation-in-female-offspring-from-high-fat-diet-fed-dams
#9
Sarah E McKee, Nicola M Grissom, Christopher T Herdt, Teresa M Reyes
During gestation, fetal nutrition is entirely dependent on maternal diet. Maternal consumption of excess fat during pregnancy has been linked to an increased risk of neurologic disorders in offspring, including attention deficit/hyperactivity disorder, autism, and schizophrenia. In a mouse model, high-fat diet (HFD)-fed offspring have cognitive and executive function deficits as well as whole-genome DNA and promoter-specific hypomethylation in multiple brain regions. Dietary methyl donor supplementation during pregnancy or adulthood has been used to alter DNA methylation and behavior...
June 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28202787/dysregulated-glycine-signaling-contributes-to-increased-impulsivity-during-protracted-alcohol-abstinence
#10
Cristina Irimia, Matthew W Buczynski, Luis A Natividad, Sarah A Laredo, Nathaniel Avalos, Loren H Parsons
Persons with alcoholism who are abstinent exhibit persistent impairments in the capacity for response inhibition, and this form of impulsivity is significantly associated with heightened relapse risk. Brain-imaging studies implicate aberrant prefrontal cortical function in this behavioral pathology, although the underlying mechanisms are not understood. Here we present evidence that deficient activation of glycine and serine release in the ventral medial prefrontal cortex (vmPFC) contributes to increased motor impulsivity during protracted abstinence from long-term alcohol exposure...
February 15, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28198416/a-one-week-5-choice-serial-reaction-time-task-to-measure-impulsivity-and-attention-in-adult-and-adolescent-mice
#11
Esther Remmelink, Uyen Chau, August B Smit, Matthijs Verhage, Maarten Loos
Many psychiatric disorders emerge during adolescence. The study of executive functions in animal models of these disorders critically requires short-duration tasks measuring these functions before the animal ages. Here, a novel 5-choice serial reaction time task (5-CSRTT) protocol is presented, to measure attention and impulsivity within one week, without scheduled food deprivation and with little animal handling. Mice were allowed 24-h/day task access from their home-cage, during which they could self-pace task progression and earn unlimited food rewards depending on task performance...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28093027/effects-of-amphetamine-and-methylphenidate-on-attentional-performance-and-impulsivity-in-the-mouse-5-choice-serial-reaction-time-task
#12
Maitane Caballero-Puntiverio, Ciarán Martin Fitzpatrick, David Pd Woldbye, Jesper Tobias Andreasen
BACKGROUND: Few studies have investigated the effects of conventional attention deficit-hyperactivity disorder (ADHD) medication in the mouse 5-choice serial reaction time task (5-CSRTT), and rat studies have yielded inconsistent results. OBJECTIVE: We aimed to examine the effects of acute methylphenidate (MPH) and amphetamine (AMPH) treatment in the mouse 5-CSRTT. METHODS: Trained male C57Bl/6J mice were tested in a variable stimulus duration schedule...
February 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28070619/theory-of-visual-attention-tva-applied-to-mice-in-the-5-choice-serial-reaction-time-task
#13
C M Fitzpatrick, M Caballero-Puntiverio, U Gether, T Habekost, C Bundesen, S Vangkilde, D P D Woldbye, J T Andreasen, A Petersen
RATIONALE: The 5-choice serial reaction time task (5-CSRTT) is widely used to measure rodent attentional functions. In humans, many attention studies in healthy and clinical populations have used testing based on Bundesen's Theory of Visual Attention (TVA) to estimate visual processing speeds and other parameters of attentional capacity. OBJECTIVES: We aimed to bridge these research fields by modifying the 5-CSRTT's design and by mathematically modelling data to derive attentional parameters analogous to human TVA-based measures...
March 2017: Psychopharmacology
https://www.readbyqxmd.com/read/27824354/serotonergic-modulation-of-waiting-impulsivity-is-mediated-by-the-impulsivity-phenotype-in-humans
#14
S Neufang, A Akhrif, C G Herrmann, C Drepper, G A Homola, J Nowak, J Waider, A G Schmitt, K-P Lesch, M Romanos
In rodents, the five-choice serial reaction time task (5-CSRTT) has been established as a reliable measure of waiting impulsivity being defined as the ability to regulate a response in anticipation of reinforcement. Key brain structures are the nucleus accumbens (NAcc) and prefrontal regions (for example, pre- and infralimbic cortex), which are, together with other transmitters, modulated by serotonin. In this functional magnetic resonance imaging study, we examined 103 healthy males while performing the 5-CSRTT measuring brain activation in humans by means of a paradigm that has been widely applied in rodents...
November 8, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27815417/dopamine-d1-and-d3-receptors-modulate-heroin-induced-cognitive-impairment-through-opponent-actions-in-mice
#15
Yongsheng Zhu, Yunpeng Wang, Jianghua Lai, Shuguang Wei, Hongbo Zhang, Peng Yan, Yunxiao Li, Xiaomeng Qiao, Fangyuan Yin
BACKGROUND: Chronic abuse of heroin leads to long-lasting and complicated cognitive impairment. Dopamine receptors are critically involved in the impulsive drug-driven behavior and the altered attention, processing speed, and mental flexibility that are associated with higher relapse rates. However, the effects of the different dopamine receptors and their possible involvement in heroin-induced cognitive impairment remain unclear. METHODS: The 5-choice serial reaction time task was used to investigate the profiles of heroin-induced cognitive impairment in mice...
December 8, 2016: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27774567/mice-haploinsufficient-for-map2k7-a-gene-involved-in-neurodevelopment-and-risk-for-schizophrenia-show-impaired-attention-a-vigilance-decrement-deficit-and-unstable-cognitive-processing-in-an-attentional-task-impact-of-minocycline
#16
R L Openshaw, D M Thomson, J M Penninger, J A Pratt, B J Morris
RATIONALE: Members of the c-Jun N-terminal kinase (JNK) family of mitogen-activated protein (MAP) kinases, and the upstream kinase MKK7, have all been strongly linked with synaptic plasticity and with the development of the neocortex. However, the impact of disruption of this pathway on cognitive function is unclear. OBJECTIVE: In the current study, we test the hypothesis that reduced MKK7 expression is sufficient to cause cognitive impairment. METHODS: Attentional function in mice haploinsufficient for Map2k7 (Map2k7 (+/-) mice) was investigated using the five-choice serial reaction time task (5-CSRTT)...
January 2017: Psychopharmacology
https://www.readbyqxmd.com/read/27748741/chemogenetic-activation-of-midbrain-dopamine-neurons-affects-attention-but-not-impulsivity-in-the-five-choice-serial-reaction-time-task-in-rats
#17
Linde Boekhoudt, Elisa S Voets, Jacques P Flores-Dourojeanni, Mieneke Cm Luijendijk, Louk Jmj Vanderschuren, Roger Ah Adan
Attentional impairments and exaggerated impulsivity are key features of psychiatric disorders, such as attention-deficit/hyperactivity disorder, schizophrenia, and addiction. These deficits in attentional performance and impulsive behaviors have been associated with aberrant dopamine (DA) signaling, but it remains unknown whether these deficits result from enhanced DA neuronal activity in the midbrain. Here, we took a novel approach by testing the impact of chemogenetically activating DA neurons in the ventral tegmental area (VTA) or substantia nigra pars compacta (SNc) on attention and impulsivity in the five-choice serial reaction time task (5-CSRTT) in rats...
May 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27534540/premature-responses-in-the-five-choice-serial-reaction-time-task-reflect-rodents-temporal-strategies-evidence-from-no-light-and-pharmacological-challenges
#18
Zackary A Cope, Adam L Halberstadt, Jordy van Enkhuizen, Aaron D Flynn, Michelle Breier, Neal R Swerdlow, Mark A Geyer, Jared W Young
RATIONALE: The five-choice serial reaction time task (5-CSRTT) is regularly used to study attention and impulsivity. In the 5-CSRTT, rodents initiate a trial, then after an inter-trial interval (ITI), a light appears in one of five holes. Responding in the lit vs. unlit hole reflects attention (accuracy), while responding prematurely before a light appears is suggested to reflect impulsivity/response disinhibition. Comparison of rat and mouse 5-CSRTT performance has raised questions on the validity of premature responses as measuring impulsivity/response inhibition...
October 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27384154/early-postnatal-manganese-exposure-causes-lasting-impairment-of-selective-and-focused-attention-and-arousal-regulation-in-adult-rats
#19
Stephane A Beaudin, Barbara J Strupp, Myla Strawderman, Donald R Smith
BACKGROUND: Studies in children and adolescents have associated early developmental manganese (Mn) exposure with inattention, impulsivity, hyperactivity, and oppositional behaviors, but causal inferences are precluded by the correlational nature of the data and generally limited control for potential confounders. OBJECTIVES: To determine whether early postnatal oral Mn exposure causes lasting attentional and impulse control deficits in adulthood, and whether continued lifelong Mn exposure exacerbates these effects, using a rat model of environmental Mn exposure...
February 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/27265297/improvements-and-important-considerations-for-the-5-choice-serial-reaction-time-task-an-effective-measurement-of-visual-attention-in-rats
#20
Jayant Bhandari, Ritesh Daya, Ram K Mishra
BACKGROUND: The 5-choice serial reaction time task (5-CSRTT) is an automated operant conditioning task that measures rodent attention. The task allows the measurement of several parameters such as response accuracy, speed of processing, motivation, and impulsivity. The task has been widely used to investigate attentional processes in rodents for attention deficit and hyperactivity disorder and has expanded to other illnesses such as Alzheimer's disease, depression, and schizophrenia. NEW METHOD: The 5-CSRTT is accompanied with two significant caveats: a time intensive training period and largely varied individual rat capability to learn and perform the task...
September 1, 2016: Journal of Neuroscience Methods
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