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Neuroscience of decision making

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https://www.readbyqxmd.com/read/28894545/comparing-performances-of-intelligent-classifier-algorithms-for-predicting-type-of-pain-in-patients-with-spinal-cord-injury
#1
Nasrolah Nasr HeidarAbadi, Laleh Hakemi, Pirhossein Kolivand, Reza Safdari, Marjan Ghazi Saeidi
BACKGROUND AND AIM: In this study, performances of classification techniques were compared in order to predict type of pain in patients with spinal cord injury. Pain is one of the main problems in people with spinal cord injury. Identifying the optimal classification technique will help improve decision support systems in clinical settings. METHODS: A descriptive retrospective analysis was performed in 253 patients. We compared performances of "Bayesian Networks", "Decision Tree", neural networks: "Multi-Layer Perceptron" (MLP), and "Support Vector Machines" (SVM)...
July 2017: Electronic Physician
https://www.readbyqxmd.com/read/28889923/social-risky-decision-making-reveals-gender-differences-in-the-tpj-a-hyperscanning-study-using-functional-near-infrared-spectroscopy
#2
Mingming Zhang, Tao Liu, Matthew Pelowski, Huibin Jia, Dongchuan Yu
Previous neuroscience studies have investigated neural correlates of risky decision-making in a single-brain frame during pseudo social (predominantly non face-to-face) contexts. To fully understand the risky decision-making behavior in more natural social interactions, the present study employed a functional near-infrared spectroscopy (fNIRS) hyperscanning technique to simultaneously measure pairs of participants' fronto-temporal activations in a face-to-face gambling card-game. The intra-brain results revealed that both those who identified as males and as females showed higher activations in their mPFC and in the inferior parts of the frontopolar area, as well as in the tempo-parietal junction (TPJ) in cases involving higher versus lower risk...
September 7, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28877482/high-yield-methods-for-accurate-two-alternative-visual-psychophysics-in-head-fixed-mice
#3
Christopher P Burgess, Armin Lak, Nicholas A Steinmetz, Peter Zatka-Haas, Charu Bai Reddy, Elina A K Jacobs, Jennifer F Linden, Joseph J Paton, Adam Ranson, Sylvia Schröder, Sofia Soares, Miles J Wells, Lauren E Wool, Kenneth D Harris, Matteo Carandini
Research in neuroscience increasingly relies on the mouse, a mammalian species that affords unparalleled genetic tractability and brain atlases. Here, we introduce high-yield methods for probing mouse visual decisions. Mice are head-fixed, facilitating repeatable visual stimulation, eye tracking, and brain access. They turn a steering wheel to make two alternative choices, forced or unforced. Learning is rapid thanks to intuitive coupling of stimuli to wheel position. The mouse decisions deliver high-quality psychometric curves for detection and discrimination and conform to the predictions of a simple probabilistic observer model...
September 5, 2017: Cell Reports
https://www.readbyqxmd.com/read/28835184/physician-failure-to-stratify-patients-hospitalized-with-acute-pulmonary-embolism
#4
Mitchell D Jacobs, Allison Greco, Umer Mukhtar, Jonathan Dunn, Michael L Scharf
OBJECTIVES: In 2011, the AHA recommended risk stratification of patients with acute pulmonary embolism (PE). Failure to risk stratify may cause under recognition of intermediate-risk PE and its attendant short- and long-term consequences. We sought to determine if patients hospitalized with acute PE were appropriately risk stratified according to the 2011 AHA Scientific Statement within our hospital system and whether differences exist in adherence to risk stratification by hospital or treating hospital service...
August 30, 2017: Hospital Practice (Minneapolis)
https://www.readbyqxmd.com/read/28827699/attraction-effect-in-risky-choice-can-be-explained-by-subjective-distance-between-choice-alternatives
#5
Peter N C Mohr, Hauke R Heekeren, Jörg Rieskamp
Individuals make decisions under risk throughout daily life. Standard models of economic decision making typically assume that people evaluate choice options independently. There is, however, substantial evidence showing that this independence assumption is frequently violated in decision making without risk. The present study extends these findings to the domain of decision making under risk. To explain the independence violations, we adapted a sequential sampling model, namely Multialternative Decision Field Theory (MDFT), to decision making under risk and showed how this model can account for the observed preference shifts...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28805580/tourette-syndrome-and-chronic-tic-disorders-the-clinical-spectrum-beyond-tics
#6
Davide Martino, Christos Ganos, Tamara M Pringsheim
The clinical surveillance and active management of Tourette syndrome (TS) and other primary chronic tic disorders cannot be limited to tics, as these patients manifest a spectrum of sensory-, behavioral-, cognitive-, and sleep-related problems that have a major impact on their functioning and quality of life, influencing enormously clinical decision making on a routine basis. The sensory phenomena of primary tic disorders consist of premonitory urges and heightened sensitivity to external somatosensory and interoceptive stimuli...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28772103/architecture-function-and-assembly-of-the-mouse-visual-system
#7
Tania A Seabrook, Timothy J Burbridge, Michael C Crair, Andrew D Huberman
Vision is the sense humans rely on most to navigate the world, make decisions, and perform complex tasks. Understanding how humans see thus represents one of the most fundamental and important goals of neuroscience. The use of the mouse as a model for parsing how vision works at a fundamental level started approximately a decade ago, ushered in by the mouse's convenient size, relatively low cost, and, above all, amenability to genetic perturbations. In the course of that effort, a large cadre of new and powerful tools for in vivo labeling, monitoring, and manipulation of neurons were applied to this species...
July 25, 2017: Annual Review of Neuroscience
https://www.readbyqxmd.com/read/28768457/greater-delay-discounting-among-girls-but-not-boys-with-adhd-correlates-with-cognitive-control
#8
Connor H G Patros, Kristie L Sweeney, E Mark Mahone, Stewart H Mostofsky, Keri S Rosch
Cognitive neuroscience models suggest both reward valuation and cognitive control contribute to reward-based decision-making. The current study examined the relationship between cognitive control and delay discounting (i.e., choosing smaller, immediate over larger, delayed rewards) in a large sample of boys and girls diagnosed with attention-deficit/hyperactivity disorder (ADHD; N = 95) and typically developing control children (TD; N = 59). Specifically, we examined performance on multiple measures of cognitive control (i...
August 2, 2017: Child Neuropsychology: a Journal on Normal and Abnormal Development in Childhood and Adolescence
https://www.readbyqxmd.com/read/28700651/metric-based-vs-peer-reviewed-evaluation-of-a-research-output-lesson-learnt-from-uk-s-national-research-assessment-exercise
#9
Kushwanth Koya, Gobinda Chowdhury
PURPOSE: There is a general inquisition regarding the monetary value of a research output, as a substantial amount of funding in modern academia is essentially awarded to good research presented in the form of journal articles, conferences papers, performances, compositions, exhibitions, books and book chapters etc., which, eventually leads to another question if the value varies across different disciplines. Answers to these questions will not only assist academics and researchers, but will also help higher education institutions (HEIs) make informed decisions in their administrative and research policies...
2017: PloS One
https://www.readbyqxmd.com/read/28692700/noise-multisensory-integration-and-previous-response-in-perceptual-disambiguation
#10
Cesare V Parise, Marc O Ernst
Sensory information about the state of the world is generally ambiguous. Understanding how the nervous system resolves such ambiguities to infer the actual state of the world is a central quest for sensory neuroscience. However, the computational principles of perceptual disambiguation are still poorly understood: What drives perceptual decision-making between multiple equally valid solutions? Here we investigate how humans gather and combine sensory information-within and across modalities-to disambiguate motion perception in an ambiguous audiovisual display, where two moving stimuli could appear as either streaming through, or bouncing off each other...
July 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28654358/predicting-motivation-computational-models-of-pfc-can-explain-neural-coding-of-motivation-and-effort-based-decision-making-in-health-and-disease
#11
Eliana Vassena, James Deraeve, William H Alexander
Human behavior is strongly driven by the pursuit of rewards. In daily life, however, benefits mostly come at a cost, often requiring that effort be exerted to obtain potential benefits. Medial PFC (MPFC) and dorsolateral PFC (DLPFC) are frequently implicated in the expectation of effortful control, showing increased activity as a function of predicted task difficulty. Such activity partially overlaps with expectation of reward and has been observed both during decision-making and during task preparation. Recently, novel computational frameworks have been developed to explain activity in these regions during cognitive control, based on the principle of prediction and prediction error (predicted response-outcome [PRO] model [Alexander, W...
October 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28634436/dual-coding-theory-explains-biphasic-collective-computation-in-neural-decision-making
#12
Bryan C Daniels, Jessica C Flack, David C Krakauer
A central question in cognitive neuroscience is how unitary, coherent decisions at the whole organism level can arise from the distributed behavior of a large population of neurons with only partially overlapping information. We address this issue by studying neural spiking behavior recorded from a multielectrode array with 169 channels during a visual motion direction discrimination task. It is well known that in this task there are two distinct phases in neural spiking behavior. Here we show Phase I is a distributed or incompressible phase in which uncertainty about the decision is substantially reduced by pooling information from many cells...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28630524/a-martingale-analysis-of-first-passage-times-of-time-dependent-wiener-diffusion-models
#13
Vaibhav Srivastava, Samuel F Feng, Jonathan D Cohen, Naomi Ehrich Leonard, Amitai Shenhav
Research in psychology and neuroscience has successfully modeled decision making as a process of noisy evidence accumulation to a decision bound. While there are several variants and implementations of this idea, the majority of these models make use of a noisy accumulation between two absorbing boundaries. A common assumption of these models is that decision parameters, e.g., the rate of accumulation (drift rate), remain fixed over the course of a decision, allowing the derivation of analytic formulas for the probabilities of hitting the upper or lower decision threshold, and the mean decision time...
April 2017: Journal of Mathematical Psychology
https://www.readbyqxmd.com/read/28630450/concurrent-talking-in-immersive-virtual-reality-on-the-dominance-of-visual-speech-cues
#14
Mar Gonzalez-Franco, Antonella Maselli, Dinei Florencio, Nikolai Smolyanskiy, Zhengyou Zhang
Humans are good at selectively listening to specific target conversations, even in the presence of multiple concurrent speakers. In our research, we study how auditory-visual cues modulate this selective listening. We do so by using immersive Virtual Reality technologies with spatialized audio. Exposing 32 participants to an Information Masking Task with concurrent speakers, we find significantly more errors in the decision-making processes triggered by asynchronous audiovisual speech cues. More precisely, the results show that lips on the Target speaker matched to a secondary (Mask) speaker's audio severely increase the participants' comprehension error rates...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28616997/emotion-and-the-prefrontal-cortex-an-integrative-review
#15
Matthew L Dixon, Ravi Thiruchselvam, Rebecca Todd, Kalina Christoff
The prefrontal cortex (PFC) plays a critical role in the generation and regulation of emotion. However, we lack an integrative framework for understanding how different emotion-related functions are organized across the entire expanse of the PFC, as prior reviews have generally focused on specific emotional processes (e.g., decision making) or specific anatomical regions (e.g., orbitofrontal cortex). Additionally, psychological theories and neuroscientific investigations have proceeded largely independently because of the lack of a common framework...
October 2017: Psychological Bulletin
https://www.readbyqxmd.com/read/28559955/a-plausible-neural-circuit-for-decision-making-and-its-formation-based-on-reinforcement-learning
#16
Hui Wei, Dawei Dai, Yijie Bu
A human's, or lower insects', behavior is dominated by its nervous system. Each stable behavior has its own inner steps and control rules, and is regulated by a neural circuit. Understanding how the brain influences perception, thought, and behavior is a central mandate of neuroscience. The phototactic flight of insects is a widely observed deterministic behavior. Since its movement is not stochastic, the behavior should be dominated by a neural circuit. Based on the basic firing characteristics of biological neurons and the neural circuit's constitution, we designed a plausible neural circuit for this phototactic behavior from logic perspective...
June 2017: Cognitive Neurodynamics
https://www.readbyqxmd.com/read/28553839/a-primer-on-foraging-and-the-explore-exploit-trade-off-for-psychiatry-research
#17
REVIEW
M A Addicott, J M Pearson, M M Sweitzer, D L Barack, M L Platt
Foraging is a fundamental behavior, and many types of animals appear to have solved foraging problems using a shared set of mechanisms. Perhaps the most common foraging problem is the choice between exploiting a familiar option for a known reward and exploring unfamiliar options for unknown rewards-the so-called explore/exploit trade-off. This trade-off has been studied extensively in behavioral ecology and computational neuroscience, but is relatively new to the field of psychiatry. Explore/exploit paradigms can offer psychiatry research a new approach to studying motivation, outcome valuation, and effort-related processes, which are disrupted in many mental and emotional disorders...
September 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28521125/beyond-hat-in-hand-science-advocacy-is-foundational-for-policy-decisions
#18
Nathaniel Kendall-Taylor, Pat Levitt
Beyond those to whom neuroscientists typically communicate exciting discoveries-that is, those who can provide more funding for researchers-there are important audiences that are positioned to use neuroscience findings to affect policy and improve societal outcomes. Showing the utility of research that policymakers, service providers, and the public can use to make decisions will enhance views of the value of scientific research. The ingredients of successful communications between neuroscientists and other stakeholders are different from those that characterize effective communications between scientists...
May 17, 2017: Neuron
https://www.readbyqxmd.com/read/28482854/medical-decision-making-in-children-and-adolescents-developmental-and-neuroscientific-aspects
#19
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/28420449/interpersonal-harm-aversion-as-a-necessary-foundation-for-morality-a-developmental-neuroscience-perspective
#20
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
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