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Frontiers in Behavioral Neuroscience

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https://www.readbyqxmd.com/read/28223926/frontal-functional-connectivity-of-electrocorticographic-delta-and-theta-rhythms-during-action-execution-versus-action-observation-in-humans
#1
Claudio Babiloni, Claudio Del Percio, Susanna Lopez, Giancarlo Di Gennaro, Pier P Quarato, Luigi Pavone, Roberta Morace, Andrea Soricelli, Giuseppe Noce, Vincenzo Esposito, Vittorio Gallese, Giovanni Mirabella
We have previously shown that in seven drug-resistant epilepsy patients, both reaching-grasping of objects and the mere observation of those actions did desynchronize subdural electrocorticographic (ECoG) alpha (8-13 Hz) and beta (14-30) rhythms as a sign of cortical activation in primary somatosensory-motor, lateral premotor and ventral prefrontal areas (Babiloni et al., 2016a). Furthermore, that desynchronization was greater during action execution than during its observation. In the present exploratory study, we reanalyzed those ECoG data to evaluate the proof-of-concept that lagged linear connectivity (LLC) between primary somatosensory-motor, lateral premotor and ventral prefrontal areas would be enhanced during the action execution compared to the mere observation due to a greater flow of visual and somatomotor information...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28223925/effects-of-intermittent-alcohol-exposure-on-emotion-and-cognition-a-potential-role-for-the-endogenous-cannabinoid-system-and-neuroinflammation
#2
Laura Sanchez-Marin, Francisco J Pavon, Juan Decara, Juan Suarez, Ana Gavito, Estela Castilla-Ortega, Fernando Rodriguez de Fonseca, Antonia Serrano
Intermittent alcohol exposure is a common pattern of adolescent alcohol use that can lead to binge drinking episodes. Alcohol use is known to modulate the endocannabinoid system (ECS), which is involved in neuronal communication, neuroplasticity, neuroinflammation and behavior. Adolescent male Wistar rats were exposed to 4-week intermittent alcohol intoxication (3 g/kg injections for 4 days/week) or saline (N = 12 per group). After alcohol deprivation, adult rats were assessed for emotionality and cognition and the gene expression of the ECS and other factors related to behavior and neuroinflammation was examined in the brain...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28223924/insect-like-organization-of-the-stomatopod-central-complex-functional-and-phylogenetic-implications
#3
Hanne H Thoen, Justin Marshall, Gabriella H Wolff, Nicholas J Strausfeld
One approach to investigating functional attributes of the central complex is to relate its various elaborations to pancrustacean phylogeny, to taxon-specific behavioral repertoires and ecological settings. Here we review morphological similarities between the central complex of stomatopod crustaceans and the central complex of dicondylic insects. We discuss whether their central complexes possess comparable functional properties, despite the phyletic distance separating these taxa, with mantis shrimp (Stomatopoda) belonging to the basal branch of Eumalacostraca...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28210216/flavor-dependent-retention-of-remote-food-preference-memory
#4
Aditya Singh, Suraj Kumar, Vikram Pal Singh, Asish Das, J Balaji
Social Transmission of Food Preference (STFP) is a single trial non-aversive learning task that is used for testing non-spatial memory. This task relies on an accurate estimate of a change in food preference of the animals following social demonstration of a novel flavor. Conventionally this is done by providing two flavors of powdered food and later estimating the amount of food consumed for each of these flavors in a defined period of time. This is achieved through a careful measurement of leftover food for each of these flavors...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28203149/gene-gene-environment-interactions-of-serotonin-transporter-monoamine-oxidase-a-and-childhood-maltreatment-predict-aggressive-behavior-in-chinese-adolescents
#5
Yun Zhang, Qing-Sen Ming, Jin-Yao Yi, Xiang Wang, Qiao-Lian Chai, Shu-Qiao Yao
Gene-environment interactions that moderate aggressive behavior have been identified independently in the serotonin transporter (5-HTT) gene and monoamine oxidase A gene (MAOA). The aim of the present study was to investigate epistasis interactions between MAOA-variable number tandem repeat (VNTR), 5-HTTlinked polymorphism (LPR) and child abuse and the effects of these on aggressive tendencies in a group of otherwise healthy adolescents. A group of 546 Chinese male adolescents completed the Child Trauma Questionnaire and Youth self-report of the Child Behavior Checklist...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28197083/balb-c-mice-can-learn-touchscreen-visual-discrimination-and-reversal-tasks-faster-than-c57bl-6-mice
#6
Karly M Turner, Christopher G Simpson, Thomas H J Burne
Touchscreen technology is increasingly being used to characterize cognitive performance in rodent models of neuropsychiatric disorders. Researchers are attracted to the automated system and translational potential for touchscreen-based tasks. However, training time is extensive and some mouse strains have struggled to learn touchscreen tasks. Here we compared the performance of commonly used C57BL/6 mice against the BALB/c mice, which are considered a poor performing strain, using a touchscreen task. BALB/c and C57BL/6 mice were trained to operate the touchscreens before learning a visual discrimination (VD) and reversal task...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28197082/the-role-of-acetaldehyde-in-the-increased-acceptance-of-ethanol-after-prenatal-ethanol-exposure
#7
Mirari Gaztañaga, Asier Angulo-Alcalde, Norman E Spear, M Gabriela Chotro
Recent studies show that acetaldehyde, the first metabolite in the oxidation of ethanol, can be responsible for both, the appetitive and the aversive effects produced by ethanol intoxication. More specifically, it has been hypothesized that acetaldehyde produced in the periphery by the liver is responsible for the aversive effects of ethanol, while the appetitive effects relate to the acetaldehyde produced centrally through the catalase system. On the other hand, from studies in our and other laboratories, it is known that ethanol exposure during the last gestational days (GD) consistently enhances the postnatal acceptance of ethanol when measured during early ontogeny in the rat...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28197081/basal-forebrain-cholinergic-system-and-orexin-neurons-effects-on-attention
#8
REVIEW
Ines Villano, Antonietta Messina, Anna Valenzano, Fiorenzo Moscatelli, Teresa Esposito, Vincenzo Monda, Maria Esposito, Francesco Precenzano, Marco Carotenuto, Andrea Viggiano, Sergio Chieffi, Giuseppe Cibelli, Marcellino Monda, Giovanni Messina
The basal forebrain (BF) cholinergic system has an important role in attentive functions. The cholinergic system can be activated by different inputs, and in particular, by orexin neurons, whose cell bodies are located within the postero-lateral hypothalamus. Recently the orexin-producing neurons have been proved to promote arousal and attention through their projections to the BF. The aim of this review article is to summarize the evidence showing that the orexin system contributes to attentional processing by an increase in cortical acetylcholine release and in cortical neurons activity...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28194099/gut-to-brain-dysbiosis-mechanisms-linking-western-diet-consumption-the-microbiome-and-cognitive-impairment
#9
REVIEW
Emily E Noble, Ted M Hsu, Scott E Kanoski
Consumption of a Western Diet (WD) that is high in saturated fat and added sugars negatively impacts cognitive function, particularly mnemonic processes that rely on the integrity of the hippocampus. Emerging evidence suggests that the gut microbiome influences cognitive function via the gut-brain axis, and that WD factors significantly alter the proportions of commensal bacteria in the gastrointestinal tract. Here we review mechanisms through which consuming a WD negatively impacts neurocognitive function, with a particular focus on recent evidence linking the gut microbiome with dietary- and metabolic-associated hippocampal impairment...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28184191/behavior-of-male-and-female-c57bl-6j-mice-is-more-consistent-with-repeated-trials-in-the-elevated-zero-maze-than-in-the-elevated-plus-maze
#10
Laura B Tucker, Joseph T McCabe
The elevated plus maze (EPM) and elevated zero maze (EZM) are behavioral tests that are widely employed to assess anxiety-like behaviors in rats and mice following experimental manipulations, or to test the effects of pharmacological agents. Both tests are based on approach/avoidance conflict, with rodents perceived as "less anxious" being more willing to explore the brighter, open and elevated regions of the apparatus as opposed to remaining in the darkened and enclosed regions. The goal of this research was to compare, under identical laboratory conditions, the behavior of male and female C57BL/6J mice in EZM and EPM during repeated trials...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28184190/long-term-effects-of-chronic-buspirone-during-adolescence-reduce-the-adverse-influences-of-neonatal-inflammatory-pain-and-stress-on-adaptive-behavior-in-adult-male-rats
#11
Irina P Butkevich, Viktor A Mikhailenko, Elena A Vershinina, Anna M Aloisi, Gordon A Barr
Neonatal pain and stress induce long-term changes in pain sensitivity and behavior. Previously we found alterations in pain sensitivity in adolescent rats exposed to early-life adverse events. We tested whether these alterations have long-lasting effects and if those effects can be improved by the 5-hydroxytryptamine 1A (5-HT1A) receptor agonist buspirone injected chronically during the adolescent period. This study investigates: (1) effects of inflammatory pain (the injection of formalin into the pad of a hind paw) or stress (short maternal deprivation-isolation, MI), or their combination in 1-2-day-old rats on the adult basal pain, formalin-induced pain, anxiety and depression; (2) effects of adolescent buspirone in adult rats that experienced similar early-life insults...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28184189/gender-differences-in-neural-responses-to-perceptually-invisible-fearful-face-an-erp-study
#12
Seung A Lee, Chai-Youn Kim, Miseon Shim, Seung-Hwan Lee
Women tend to respond to emotional stimuli differently from men. This study aimed at investigating whether neural responses to perceptually "invisible" emotional stimuli differ between men and women by exploiting event-related potential (ERP). Forty healthy participants (21 women) were recruited for the main experiment. A control experiment was conducted by excluding nine (7 women) participants from the main experiment and replacing them with additional ten (6 women) participants (total 41 participants) where Beck's Anxiety Inventory (BAI) and Beck's Depression Inventory (BDI) scores were controlled...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28174528/anxious-individuals-are-impulsive-decision-makers-in-the-delay-discounting-task-an-erp-study
#13
Lisheng Xia, Ruolei Gu, Dandan Zhang, Yuejia Luo
Impulsivity, which is linked to a wide range of psychiatric disorders, is often characterized by a preference for immediate but smaller rewards over delayed but larger rewards. However, debate exists on the relationship between anxiety and impulsivity. Here we use event-related potential (ERP) components as biomarkers in the temporal discounting task to examine the effect of anxiety on inter-temporal decision-making. Our behavioral results indicated that the high trait anxiety (HTA) group made significantly more immediate choices than the low trait anxiety (LTA) group...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28174527/spatial-navigation-and-the-central-complex-sensory-acquisition-orientation-and-motor-control
#14
REVIEW
Adrienn G Varga, Nicholas D Kathman, Joshua P Martin, Peiyuan Guo, Roy E Ritzmann
Cockroaches are scavengers that forage through dark, maze-like environments. Like other foraging animals, for instance rats, they must continually asses their situation to keep track of targets and negotiate barriers. While navigating a complex environment, all animals need to integrate sensory information in order to produce appropriate motor commands. The integrated sensory cues can be used to provide the animal with an environmental and contextual reference frame for the behavior. To successfully reach a goal location, navigational cues continuously derived from sensory inputs have to be utilized in the spatial guidance of motor commands...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28174526/reconsolidation-extinction-interactions-in-fear-memory-attenuation-the-role-of-inter-trial-interval-variability
#15
Allison Auchter, Lawrence K Cormack, Yael Niv, Francisco Gonzalez-Lima, Marie H Monfils
Fear extinction typically results in the formation of a new inhibitory memory that suppresses the original conditioned response. Evidence also suggests that extinction training during a retrieval-induced labile period results in integration of the extinction memory into the original fear memory, rendering the fear memory less susceptible to reinstatement. Here we investigated the parameters by which the retrieval-extinction paradigm was most effective in memory updating. Specifically, we manipulated the inter-trial intervals (ITIs) between conditional stimulus (CS) presentations during extinction, examining how having interval lengths with different degrees of variability affected the strength of memory updating...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28174525/cardiac-signals-are-independently-associated-with-temporal-discounting-and-time-perception
#16
Bowen J Fung, Damien L Crone, Stefan Bode, Carsten Murawski
Cardiac signals reflect the function of the autonomic nervous system (ANS) and have previously been associated with a range of self-regulatory behaviors such as emotion regulation and memory recall. It is unknown whether cardiac signals may also be associated with self-regulation in the temporal domain, in particular impulsivity. We assessed both decision impulsivity (temporal discounting, TD) and time perception impulsivity (duration reproduction, DR) in 120 participants while they underwent electrocardiography in order to test whether cardiac signals were related to these two aspects of impulsivity...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28144217/subtle-scientific-fallacies-undermine-the-validity-of-neuroendocrinological-research-do-not-draw-premature-conclusions-on-the-role-of-female-sex-hormones
#17
Michael P Hengartner
Major scientific flaws such as reporting and publication biases are well documented, even though acknowledgment of their importance appears to be lacking in various psychological and medical fields. Subtle and less obvious biases including selective reviews of the literature and empirically unsupported conclusions and recommendations have received even less attention. Using the literature on the association between transition to menopause, hormones and the onset of depression as a guiding example, I outline how such scientific fallacies undermine the validity of neuroendocrinological research...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28167903/racemic-salsolinol-and-its-enantiomers-act-as-agonists-of-the-%C3%AE-opioid-receptor-by-activating-the-gi-protein-adenylate-cyclase-pathway
#18
Pablo Berríos-Cárcamo, María E Quintanilla, Mario Herrera-Marschitz, Vasilis Vasiliou, Gerald Zapata-Torres, Mario Rivera-Meza
Background: Several studies have shown that the ethanol-derived metabolite salsolinol (SAL) can activate the mesolimbic system, suggesting that SAL is the active molecule mediating the rewarding effects of ethanol. In vitro and in vivo studies suggest that SAL exerts its action on neuron excitability through a mechanism involving opioid neurotransmission. However, there is no direct pharmacologic evidence showing that SAL activates opioid receptors. Methods: The ability of racemic (R/S)-SAL, and its stereoisomers (R)-SAL and (S)-SAL, to activate the μ-opioid receptor was tested in cell-based (light-emitting) receptor assays...
2016: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28167902/chronic-inactivation-of-the-orbitofrontal-cortex-increases-anxiety-like-behavior-and-impulsive-aggression-but-decreases-depression-like-behavior-in-rats
#19
Hiroshi Kuniishi, Satoshi Ichisaka, Sae Matsuda, Eri Futora, Riho Harada, Yoshio Hata
The orbitofrontal cortex (OFC) is involved in emotional processing, and orbitofrontal abnormalities have often been observed in various affective disorders. Thus, chronic dysfunction of the OFC may cause symptoms of affective disorders, such as anxiety, depression and impulsivity. Previous studies have investigated the effect of orbitofrontal dysfunction on anxiety-like behavior and impulsive aggression in rodents, but the results are inconsistent possibly reflecting different methods of OFC inactivation. These studies used either a lesion of the OFC, which may affect other brain regions, or a transient inactivation of the OFC, whose effect may be restored in time and not reflect effects of chronic OFC dysfunction...
2016: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28154530/acute-depletion-of-d2-receptors-from-the-rat-substantia-nigra-alters-dopamine-kinetics-in-the-dorsal-striatum-and-drug-responsivity
#20
Evgeny A Budygin, Erik B Oleson, Yun Beom Lee, Lawrence C Blume, Michael J Bruno, Allyn C Howlett, Alexis C Thompson, Caroline E Bass
Recent studies have used conditional knockout mice to selectively delete the D2 autoreceptor; however, these approaches result in global deletion of D2 autoreceptors early in development. The present study takes a different approach using RNA interference (RNAi) to knockdown the expression of the D2 receptors (D2R) in the substantia nigra (SN), including dopaminergic neurons, which project primarily to the dorsal striatum (dStr) in adult rats. This approach restricts the knockdown primarily to nigrostriatal pathways, leaving mesolimbic D2 autoreceptors intact...
2016: Frontiers in Behavioral Neuroscience
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