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Affective neuroscience

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https://www.readbyqxmd.com/read/28420985/mapping-dorsal-and-ventral-caudate-in-older-adults-method-and-validation
#1
Haiqing Huang, Peter T Nguyen, Nadine A Schwab, Jared J Tanner, Catherine C Price, Mingzhou Ding
The caudate nucleus plays important roles in cognition and affect. Depending on associated connectivity and function, the caudate can be further divided into dorsal and ventral aspects. Dorsal caudate, highly connected to dorsolateral prefrontal cortex (DLPFC), is implicated in executive function and working memory; ventral caudate, more interconnected with the limbic system, is implicated in affective functions such as pain processing. Clinically, certain brain disorders are known to differentially impact dorsal and ventral caudate...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28420449/interpersonal-harm-aversion-as-a-necessary-foundation-for-morality-a-developmental-neuroscience-perspective
#2
Jean Decety, Jason M Cowell
Growing evidence from developmental psychology and social neuroscience emphasizes the importance of third-party harm aversion for constructing morality. A sensitivity to interpersonal harm emerges very early in ontogeny, as reflected in both the capacity for implicit social evaluation and an aversion for antisocial agents. Yet it does not necessarily entail avoidance toward inflicting pain to others. Later, an understanding that harmful actions cause suffering emerges, followed by an integration of rules that can depend on social contexts and cultures...
April 19, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28392765/the-emerging-neuroscience-of-intrinsic-motivation-a-new-frontier-in-self-determination-research
#3
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/28389381/task-alters-category-representations-in-prefrontal-but-not-high-level-visual-cortex
#4
Lior Bugatus, Kevin S Weiner, Kalanit Grill-Spector
A central question in neuroscience is how cognitive tasks affect category representations across the human brain. Regions in lateral occipito-temporal cortex (LOTC), ventral temporal cortex (VTC), and ventro-lateral prefrontal cortex (VLFPC) constitute the extended "what" pathway, which is considered instrumental for visual category processing. However, it is unknown (1) whether distributed responses across LOTC, VTC, and VLPC explicitly represent category, task, or some combination of both, and (2) in what way representations across these subdivisions of the extended 'what' pathway may differ...
April 4, 2017: NeuroImage
https://www.readbyqxmd.com/read/28384621/the-affective-tie-that-binds-examining-the-contribution-of-positive-emotions-and-anxiety-to-relationship-formation-in-social-anxiety-disorder
#5
Charles T Taylor, Sarah L Pearlstein, Murray B Stein
Individuals with social anxiety disorder (SAD) have difficulty forming social relationships. The prevailing clinical perspective is that negative emotions such as anxiety inhibit one's capacity to develop satisfying social connections. However, empirical findings from social psychology and affective neuroscience suggest that positive emotional experiences are fundamental to establishing new social bonds. To reconcile these perspectives, we collected repeated measurements of anxiety, positive emotions (pleasantness), and connectedness over the course of a controlled relationship formation encounter in 56 participants diagnosed with SAD (64% female; Mage=23...
March 31, 2017: Journal of Anxiety Disorders
https://www.readbyqxmd.com/read/28377991/animal-models-in-psychiatric-research-the-rdoc-system-as-a-new-framework-for-endophenotype-oriented-translational-neuroscience
#6
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/28377690/increasing-our-insular-world-view-interoception-and-psychopathology-for-psychotherapists
#7
REVIEW
Patrice Duquette
Interoception has been determined to be an elemental aspect of the neural foundations of physiological homeostasis, subjective experience, and motivated behavior. This paper reviews current neuroscience research regarding interoception and forms of interoceptive dysfunction that may result in psychopathology, focusing on depression, and anxiety, in a manner conducive to psychotherapists engaging with it to consider clinical applications. Pertinent aspects of interoceptive system processes in relation to psychopathology are addressed: Functional interoceptive ability and the forms of its expression, the difficulty of accurate measurement of such within an individual or group, interoceptive inference processes and perturbations...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28374287/the-differential-contributions-of-conceptual-representation-format-and-language-structure-to-levels-of-semantic-abstraction-capacity
#8
REVIEW
Gainotti Guido
This paper reviews some controversies concerning the original and revised versions of the 'hub-and-spoke' model of conceptual representations and their implication for abstraction capacity levels. The 'hub-and-spoke' model, which is based on data gathered in patients with semantic dementia (SD), is the most authoritative model of conceptual knowledge. Patterson et al.'s (Nature Reviews Neuroscience, 8(12), 976-987, 2007) classical version of this model maintained that conceptual representations are stored in a unitary 'amodal' format in the right and left anterior temporal lobes (ATLs), because in SD the semantic disorder cuts across modalities and categories...
April 3, 2017: Neuropsychology Review
https://www.readbyqxmd.com/read/28373123/sensitivity-and-specificity-considerations-for-fmri-encoding-decoding-and-mapping-of-auditory-cortex-at-ultra-high-field
#9
Michelle Moerel, Federico De Martino, Valentin G Kemper, Sebastian Schmitter, An T Vu, Kâmil Uğurbil, Elia Formisano, Essa Yacoub
Following rapid technological advances, ultra-high field functional MRI (fMRI) enables exploring correlates of neuronal population activity at an increasing spatial resolution. However, as the fMRI blood-oxygenation-level-dependent (BOLD) contrast is a vascular signal, the spatial specificity of fMRI data is ultimately determined by the characteristics of the underlying vasculature. At 7T, fMRI measurement parameters determine the relative contribution of the macro- and microvasculature to the acquired signal...
March 31, 2017: NeuroImage
https://www.readbyqxmd.com/read/28370415/top2b-is-involved-in-the-formation-of-outer-segment-and-synapse-during-late-stage-photoreceptor-differentiation-by-controlling-key-genes-of-photoreceptor-transcriptional-regulatory-network
#10
Ying Li, Hailing Hao, Mavis R Swerdel, Hyeon-Yeol Cho, Ki-Bum Lee, Ronald P Hart, Yi Lisa Lyu, Li Cai
Topoisomerase II beta (Top2b) is an enzyme that alters the topologic states of DNA during transcription. Top2b deletion in early retinal progenitor cells causes severe defects in neural differentiation and affects cell survival in all retinal cell types. However, it is unclear whether the observed severe phenotypes are the result of cell-autonomous/primary defects or non-cell-autonomous/secondary defects caused by alterations of other retinal cells. Using photoreceptor cells as a model, we first characterized the phenotypes in Top2b conditional knockout...
March 30, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28352238/communicating-the-neuroscience-of-psychopathy-and-its-influence-on-moral-behavior-protocol-of-two-experimental-studies
#11
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/28345189/tuning-face-perception-with-electrical-stimulation-of-the-fusiform-gyrus
#12
Corey J Keller, Ido Davidesco, Pierre Megevand, Fred A Lado, Rafael Malach, Ashesh D Mehta
The fusiform gyrus (FG) is an important node in the face processing network, but knowledge of its causal role in face perception is currently limited. Recent work demonstrated that high frequency stimulation applied to the FG distorts the perception of faces in human subjects (Parvizi et al. []: J Neurosci 32:14915-14920). However, the timing of this process in the FG relative to stimulus onset and the spatial extent of FG's role in face perception are unknown. Here, we investigate the causal role of the FG in face perception by applying precise, event-related electrical stimulation (ES) to higher order visual areas including the FG in six human subjects undergoing intracranial monitoring for epilepsy...
March 27, 2017: Human Brain Mapping
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
#13
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/28338892/embodiment-and-schizophrenia-a-review-of-implications-and-applications
#14
Wolfgang Tschacher, Anne Giersch, Karl Friston
In recent decades, embodiment has become an influential concept in psychology and cognitive neuroscience. Embodiment denotes the study of the reciprocal (causal) relationships between mind and body, with the mind not only affecting the body but also vice versa. Embodied cognition comes to the fore in sensorimotor coupling, predictive coding, and nonverbal behavior. Additionally, the embodiment of the mind constitutes the basis of social interaction and communication, as evident in research on nonverbal synchrony and mimicry...
March 3, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28329869/50-years-of-cognitive-aging-theory
#15
Nicole D Anderson, Fergus I M Craik
Objectives: The objectives of this Introduction to the Journal of Gerontology: Psychological Sciences special issue on "50 Years of Cognitive Aging Theory" are to provide a brief overview of cognitive aging research prior to 1965 and to highlight significant developments in cognitive aging theory over the last 50 years. Method: Historical and recent theories of cognitive aging were reviewed, with a particular focus on those not directly covered by the articles included in this special issue...
December 9, 2016: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28300278/behavior-analysis-and-neuroscience-complementary-disciplines
#16
John W Donahoe
Behavior analysis and neuroscience are disciplines in their own right but are united in that both are subfields of a common overarching field-biology. What most fundamentally unites these disciplines is a shared commitment to selectionism, the Darwinian mode of explanation. In selectionism, the order and complexity observed in nature are seen as the cumulative products of selection processes acting over time on a population of variants-favoring some and disfavoring others-with the affected variants contributing to the population on which future selections operate...
March 16, 2017: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/28286321/synaptic-proteome-changes-in-the-hypothalamus-of-mother-rats
#17
Edina Brigitta Udvari, Katalin Völgyi, Péter Gulyássy, Diána Dimén, Viktor Kis, János Barna, Éva Rebeka Szabó, Gert Lubec, Gábor Juhász, Katalin Adrienna Kékesi, Árpád Dobolyi
To establish synaptic proteome changes associated with motherhood, we isolated synaptosome fractions from the hypothalamus of mother rats and non-maternal control females at the 11th postpartum day. Proteomic analysis by two-dimensional differential gel electrophoresis combined with mass spectrometric protein identification established 26 significant proteins, 7 increasing and 19 decreasing protein levels in the dams. The altered proteins are mainly involved in energy homeostasis, protein folding, and metabolic processes suggesting the involvement of these cellular processes in maternal adaptations...
March 9, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28284392/diseases-of-the-synaptic-vesicle-a-potential-new-group-of-neurometabolic-disorders-affecting-neurotransmission
#18
E Cortès-Saladelafont, A Tristán-Noguero, R Artuch, X Altafaj, A Bayès, A García-Cazorla
The general concept of inborn error of metabolism is currently evolving into the interface between classical biochemistry and cellular biology. Basic neuroscience is providing increasing knowledge about the mechanisms of neurotransmission and novel related disorders are being described. There is a necessity of updating the classic concept of "inborn error of neurotransmitters (NT)" that considers mainly defects of synthesis and catabolism and transport of low weight NT molecules. Monogenic defects of the synaptic vesicle (SV), and especially those affecting the SV cycle are a potential new group of NT disorders since they end up in abnormal NT turnover and release...
November 2016: Seminars in Pediatric Neurology
https://www.readbyqxmd.com/read/28284237/interpreting-pain-symptoms-and-how-pain-affects-neuromuscular-control-in-dancersif-i-m-in-pain-how-should-i-train
#19
Andrew P Claus, David A Macdonald
This review draws from leading research on pain neuroscience and control of posture and movement to help inform rehabilitation approaches and when it may or may not be prudent to "dance through" pain. Control of posture and movement is frequently distorted by pain perception, and that may not be altered even when the pain is resolved. It is important to exclude serious systemic disease or major tissue injury with severe, unremitting, or persistent symptoms before focusing on movement-based rehabilitation. Both specific exercises (contraction of specific muscles and use of movement techniques) and general exercises (which promote strength, power, endurance, and flexibility) can help to manage individuals with persistent pain problems...
March 1, 2017: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/28273291/an-integrated-neuroscience-perspective-on-formulation-and-treatment-planning-for-posttraumatic-stress-disorder-an-educational-review
#20
David A Ross, Melissa R Arbuckle, Michael J Travis, Jennifer B Dwyer, Gerrit I van Schalkwyk, Kerry J Ressler
Importance: Posttraumatic stress disorder (PTSD) is a common psychiatric illness, increasingly in the public spotlight in the United States due its prevalence in the soldiers returning from combat in Iraq and Afghanistan. This educational review presents a contemporary approach for how to incorporate a modern neuroscience perspective into an integrative case formulation. The article is organized around key neuroscience "themes" most relevant for PTSD. Within each theme, the article highlights how seemingly diverse biological, psychological, and social perspectives all intersect with our current understanding of neuroscience...
April 1, 2017: JAMA Psychiatry
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