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https://www.readbyqxmd.com/read/28507228/understanding-principles-of-integration-and-segregation-using-whole-brain-computational-connectomics-implications-for-neuropsychiatric-disorders
#1
REVIEW
Louis-David Lord, Angus B Stevner, Gustavo Deco, Morten L Kringelbach
To survive in an ever-changing environment, the brain must seamlessly integrate a rich stream of incoming information into coherent internal representations that can then be used to efficiently plan for action. The brain must, however, balance its ability to integrate information from various sources with a complementary capacity to segregate information into modules which perform specialized computations in local circuits. Importantly, evidence suggests that imbalances in the brain's ability to bind together and/or segregate information over both space and time is a common feature of several neuropsychiatric disorders...
June 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28486814/psychodynamic-formulation-in-the-era-of-the-brain-towards-integration
#2
Louise K Newman
OBJECTIVE: The objectives of this study were to describe advances in neurosciences and their relationship to psychodynamic models of psychopathology and to present an integrative approach to psychodynamic formulation which incorporates the neurobiological underpinnings of self-functioning and a model of relational trauma. CONCLUSION: Developmental psychopathology is now better able to describe the significance of early developmental periods and the interpersonal context of self-development...
May 1, 2017: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/28482854/medical-decision-making-in-children-and-adolescents-developmental-and-neuroscientific-aspects
#3
REVIEW
Petronella Grootens-Wiegers, Irma M Hein, Jos M van den Broek, Martine C de Vries
BACKGROUND: Various international laws and guidelines stress the importance of respecting the developing autonomy of children and involving minors in decision-making regarding treatment and research participation. However, no universal agreement exists as to at what age minors should be deemed decision-making competent. Minors of the same age may show different levels of maturity. In addition, patients deemed rational conversation-partners as a child can suddenly become noncompliant as an adolescent...
May 8, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28458034/emotional-learning-stress-and-development-an-ever-changing-landscape-shaped-by-early-life-experience
#4
Siobhan S Pattwell, Kevin G Bath
The capacity to learn to associate cues with negative outcomes is a highly adaptive process that appears to be conserved across species. However, when the cue is no longer a valid predictor of danger, but the emotional response persists, this can result in maladaptive behaviors, and in humans contribute to debilitating emotional disorders. Over the past several decades, work in neuroscience, psychiatry, psychology, and biology have uncovered key processes underlying, and structures governing, emotional responding and learning, as well as identified disruptions in the structural and functional integrity of these brain regions in models of pathology...
April 27, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28456584/inference-in-the-age-of-big-data-future-perspectives-on-neuroscience
#5
REVIEW
Danilo Bzdok, B T Thomas Yeo
Neuroscience is undergoing faster changes than ever before. Over 100 years our field qualitatively described and invasively manipulated single or few organisms to gain anatomical, physiological, and pharmacological insights. In the last 10 years neuroscience spawned quantitative datasets of unprecedented breadth (e.g., microanatomy, synaptic connections, and optogenetic brain-behavior assays) and size (e.g., cognition, brain imaging, and genetics). While growing data availability and information granularity have been amply discussed, we direct attention to a less explored question: How will the unprecedented data richness shape data analysis practices? Statistical reasoning is becoming more important to distill neurobiological knowledge from healthy and pathological brain measurements...
April 26, 2017: NeuroImage
https://www.readbyqxmd.com/read/28441117/sexual-dimorphism-of-parental-care-from-genes-to-behavior
#6
Noga Zilkha, Niv Scott, Tali Kimchi
Parental care is found in species across the animal kingdom, from small insects to large mammals, with a conserved purpose of increasing offspring survival. Yet enormous variability exists between different species and between the sexes in the pattern and level of parental investment. Here, we review the literature on the neurobiological mechanisms underlying maternal and paternal care, especially in rodents, and discuss the relationship between sex differences in behavior and sexual dimorphism in the brain...
April 24, 2017: Annual Review of Neuroscience
https://www.readbyqxmd.com/read/28434615/searching-for-cross-diagnostic-convergence-neural-mechanisms-governing-excitation-and-inhibition-balance-in-schizophrenia-and-autism-spectrum-disorders
#7
REVIEW
Jennifer H Foss-Feig, Brendan D Adkinson, Jie Lisa Ji, Genevieve Yang, Vinod H Srihari, James C McPartland, John H Krystal, John D Murray, Alan Anticevic
Recent theoretical accounts have proposed excitation and inhibition (E/I) imbalance as a possible mechanistic, network-level hypothesis underlying neural and behavioral dysfunction across neurodevelopmental disorders, particularly autism spectrum disorder (ASD) and schizophrenia (SCZ). These two disorders share some overlap in their clinical presentation as well as convergence in their underlying genes and neurobiology. However, there are also clear points of dissociation in terms of phenotypes and putatively affected neural circuitry...
May 15, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28420150/virtual-reality-for-research-in-social-neuroscience
#8
Thomas D Parsons, Andrea Gaggioli, Giuseppe Riva
The emergence of social neuroscience has significantly advanced our understanding of the relationship that exists between social processes and their neurobiological underpinnings. Social neuroscience research often involves the use of simple and static stimuli lacking many of the potentially important aspects of real world activities and social interactions. Whilst this research has merit, there is a growing interest in the presentation of dynamic stimuli in a manner that allows researchers to assess the integrative processes carried out by perceivers over time...
April 16, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28401576/a-new-nomenclature-for-classifying-psychotropic-drugs
#9
Filippo Caraci, S J Enna, Joseph Zohar, Giorgio Racagni, Gil Zalsman, Wim van den Brink, Siegfried Kasper, George F Koob, Carmine M Pariante, Pier Vincenzo Piazza, Kiyofumi Yamada, Michael Spedding, Filippo Drago
The Neuroscience-based Nomenclature (NbN) for psychotropic drugs was developed as an alternative to the current Anatomical Therapeutic Chemical (ATC) indication-based classification in order to provide more precise designations for this drug class. The ATC nomenclature for psychotherapeutics is limited in that it fails to specify neither pharmacological domains nor mechanism of action and also does not describe all the potential uses of a particular agent. The disconnect between the drug classification and its clinical use is not very useful for scientific purposes and is confusing for patients and caregivers, often leading to a misunderstanding of the intended effects of the prescribed medication and, most importantly, to low treatment adherence...
April 12, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28392765/the-emerging-neuroscience-of-intrinsic-motivation-a-new-frontier-in-self-determination-research
#10
REVIEW
Stefano I Di Domenico, Richard M Ryan
Intrinsic motivation refers to people's spontaneous tendencies to be curious and interested, to seek out challenges and to exercise and develop their skills and knowledge, even in the absence of operationally separable rewards. Over the past four decades, experimental and field research guided by self-determination theory (SDT; Ryan and Deci, 2017) has found intrinsic motivation to predict enhanced learning, performance, creativity, optimal development and psychological wellness. Only recently, however, have studies begun to examine the neurobiological substrates of intrinsic motivation...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28389130/biological-evidence-for-paradoxical-improvement-of-psychiatric-disorder-symptoms-by-addictive-drugs
#11
Christian P Müller, Johannes Kornhuber
Addiction biology has focused on the mechanisms of the positive and negative reinforcing actions of addictive drugs but neglected potential benefits. Two new studies provide the first insights into a neurobiology of psychoactive drug instrumentalization. This may help us design better models for addiction neuroscience and opens a new dimension for the development of personalized pharmacotherapy of drug addiction.
April 4, 2017: Trends in Pharmacological Sciences
https://www.readbyqxmd.com/read/28377991/animal-models-in-psychiatric-research-the-rdoc-system-as-a-new-framework-for-endophenotype-oriented-translational-neuroscience
#12
REVIEW
Elmira Anderzhanova, Thomas Kirmeier, Carsten T Wotjak
The recently proposed Research Domain Criteria (RDoC) system defines psychopathologies as phenomena of multilevel neurobiological existence and assigns them to 5 behavioural domains characterizing a brain in action. We performed an analysis on this contemporary concept of psychopathologies in respect to a brain phylogeny and biological substrates of psychiatric diseases. We found that the RDoC system uses biological determinism to explain the pathogenesis of distinct psychiatric symptoms and emphasises exploration of endophenotypes but not of complex diseases...
December 2017: Neurobiology of Stress
https://www.readbyqxmd.com/read/28352238/communicating-the-neuroscience-of-psychopathy-and-its-influence-on-moral-behavior-protocol-of-two-experimental-studies
#13
Robert Blakey, Adrian D Askelund, Matilde Boccanera, Johanna Immonen, Nejc Plohl, Cassandra Popham, Clarissa Sorger, Julia Stuhlreyer
Neuroscience has identified brain structures and functions that correlate with psychopathic tendencies. Since psychopathic traits can be traced back to physical neural attributes, it has been argued that psychopaths are not truly responsible for their actions and therefore should not be blamed for their psychopathic behaviors. This experimental research aims to evaluate what effect communicating this theory of psychopathy has on the moral behavior of lay people. If psychopathy is blamed on the brain, people may feel less morally responsible for their own psychopathic tendencies and therefore may be more likely to display those tendencies...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28341151/mice-heterozygous-for-an-inactivated-allele-of-the-schizophrenia-associated-brd1-gene-display-selective-cognitive-deficits-with-translational-relevance-to-schizophrenia
#14
Per Qvist, Anto P Rajkumar, John P Redrobe, Mette Nyegaard, Jane H Christensen, Ole Mors, Gregers Wegener, Michael Didriksen, Anders D Børglum
Schizophrenia is a debilitating brain disorder characterized by disturbances of emotion, perception and cognition. Cognitive impairments predict functional outcome in schizophrenia and are detectable even in the prodromal stage of the disorder. However, our understanding of the underlying neurobiology is limited and procognitive treatments remain elusive. We recently demonstrated that mice heterozygous for an inactivated allele of the schizophrenia-associated Brd1 gene (Brd1(+/)(-) mice) display behaviors reminiscent of schizophrenia, including impaired social cognition and long-term memory...
March 21, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28329204/new-neuroscience-tools-that-are-identifying-the-sleep-wake-circuit
#15
Priyattam J Shiromani, John H Peever
The complexity of the brain is yielding to technology. In the area of sleep neurobiology, conventional neuroscience tools such as lesions, cell recordings, c-Fos, and axon-tracing methodologies have been instrumental in identifying the complex and intermingled populations of sleep- and arousal-promoting neurons that orchestrate and generate wakefulness, NREM, and REM sleep. In the last decade, new technologies such as optogenetics, chemogenetics, and the CRISPR-Cas system have begun to transform how biologists understand the finer details associated with sleep-wake regulation...
April 1, 2017: Sleep
https://www.readbyqxmd.com/read/28324757/perceptual-category-learning-and-visual-processing-an-exercise-in-computational-cognitive-neuroscience
#16
George Cantwell, Maximilian Riesenhuber, Jessica L Roeder, F Gregory Ashby
The field of computational cognitive neuroscience (CCN) builds and tests neurobiologically detailed computational models that account for both behavioral and neuroscience data. This article leverages a key advantage of CCN-namely, that it should be possible to interface different CCN models in a plug-and-play fashion-to produce a new and biologically detailed model of perceptual category learning. The new model was created from two existing CCN models: the HMAX model of visual object processing and the COVIS model of category learning...
May 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28321194/mindfulness-and-emotion-regulation-insights-from-neurobiological-psychological-and-clinical-studies
#17
REVIEW
Simón Guendelman, Sebastián Medeiros, Hagen Rampes
There is increasing interest in the beneficial clinical effects of mindfulness-based interventions (MBIs). Research has demonstrated their efficacy in a wide range of psychological conditions characterized by emotion dysregulation. Neuroimaging studies have evidenced functional and structural changes in a myriad of brain regions mainly involved in attention systems, emotion regulation, and self-referential processing. In this article we review studies on psychological and neurobiological correlates across different empirically derived models of research, including dispositional mindfulness, mindfulness induction, MBIs, and expert meditators in relation to emotion regulation...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28283392/addictions-neuroclinical-assessment-a-reverse-translational-approach
#18
REVIEW
Laura E Kwako, Reza Momenan, Erica N Grodin, Raye Z Litten, George F Koob, David Goldman
Incentive salience, negative emotionality, and executive function are functional domains that are etiologic in the initiation and progression of addictive disorders, having been implicated in humans with addictive disorders and in animal models of addictions. Measures of these three neuroscience-based functional domains can capture much of the effects of inheritance and early exposures that lead to trait vulnerability shared across different addictive disorders. For specific addictive disorders, these measures can be supplemented by agent specific measures such as those that access pharmacodynamic and pharmacokinetic variation attributable to agent-specific gatekeeper molecules including receptors and drug-metabolizing enzymes...
March 7, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28259799/gray-and-white-matter-correlates-of-the-big-five-personality-traits
#19
Jesús Privado, Francisco J Román, Carlota Saénz-Urturi, Miguel Burgaleta, Roberto Colom
Personality neuroscience defines the scientific study of the neurobiological basis of personality. This field assumes that individual differences in personality traits are related with structural and functional variations of the human brain. Gray and white matters are structural properties considered separately in previous research. Available findings in this regard are largely disparate. Here we analyze the relationships between gray matter (cortical thickness (CT), cortical surface area (CSA), and cortical volume) and integrity scores obtained after several white matter tracts connecting different brain regions, with individual differences in the personality traits comprised by the Five-Factor Model (extraversion, agreeableness, conscientiousness, neuroticism, and openness to experience)...
March 1, 2017: Neuroscience
https://www.readbyqxmd.com/read/28230844/network-neuroscience
#20
REVIEW
Danielle S Bassett, Olaf Sporns
Despite substantial recent progress, our understanding of the principles and mechanisms underlying complex brain function and cognition remains incomplete. Network neuroscience proposes to tackle these enduring challenges. Approaching brain structure and function from an explicitly integrative perspective, network neuroscience pursues new ways to map, record, analyze and model the elements and interactions of neurobiological systems. Two parallel trends drive the approach: the availability of new empirical tools to create comprehensive maps and record dynamic patterns among molecules, neurons, brain areas and social systems; and the theoretical framework and computational tools of modern network science...
February 23, 2017: Nature Neuroscience
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