112 results match your criteria: "Human Neuroscience Institute[Affiliation]"

Uncovering Susceptibility Risk to Online Deception in Aging.

J Gerontol B Psychol Sci Soc Sci

February 2020

Florida Institute for Cybersecurity Research, University of Florida, Gainesville.

Objectives: Fraud in the aged is an emerging public health problem. An increasingly common form of deception is conducted online. However, identification of cognitive and socioemotional risk factors has not been undertaken yet.

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A critical function of attention is to support a state of readiness to enhance stimulus detection, independent of stimulus modality. The nucleus basalis magnocellularis (NBM) is the major source of the neurochemical acetylcholine (ACh) for frontoparietal cortical networks thought to support attention. We examined a potential supramodal role of ACh in a frontoparietal cortical attentional network supporting target detection.

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Episodic simulation is an adaptive process that can support goal-directed activity and planning success. We investigated the neural architecture associated with the episodic simulation improvement to the likelihood of carrying out future actions by isolating the brain regions associated with this facilitation in a prospective memory paradigm. Participants performed a lexical decision task by making word/non-word judgments, with rarely occurring prospective memory target words requiring a pre-specified manual response.

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Segregation of the human basal forebrain using resting state functional MRI.

Neuroimage

June 2018

Department of Human Development, Cornell University, Ithaca, NY, USA; Human Neuroscience Institute, Cornell University, Ithaca, NY, USA. Electronic address:

The basal forebrain (BF) is poised to play an important neuromodulatory role in brain regions important to cognition due to its broad projections and complex neurochemistry. While significant in vivo work has been done to elaborate BF function in nonhuman rodents and primates, comparatively limited work has examined the in vivo function of the human BF. In the current study we used multi-echo resting state functional magnetic resonance imaging (rs-fMRI) from 100 young adults (18-34 years) to assess the potential segregation of human BF nuclei as well as their associated projections.

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Explaining recollection without remembering.

J Exp Psychol Learn Mem Cogn

December 2018

Department of Human Development and Human Neuroscience Institute, Cornell University.

Recollection without remembering is a counterintuitive phenomenon that violates a traditional assumption of source memory models-namely, that accurate item memory is a necessary precondition for remembering source details that accompanied an item's presentation. The dual-recollection model explains recollection without remembering as a by-product of the contrasting effects of target and context recollection on item tests versus source tests. We pitted that explanation against 2 others that preserve the traditional assumption, one based on hypothesized testing artifacts and the other derived from multivariate signal detection theory.

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Article Synopsis
  • * These subsystems show different patterns of connectivity with the default network (DN) and dorsal attention network (DAN), indicating a flexible response to varying cognitive tasks.
  • * The study's findings highlight that FPCN's organization is not uniform, with one subsystem linked to introspective processes and the other to visuospatial attention, affecting how it operates under different cognitive conditions.
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Reward priming eliminates color-driven affect in perception.

Psychol Res

March 2019

Department of Human Development, Cornell University, Ithaca, NY, 14850, USA.

Brain and behavior evidence suggests that colors have distinct affective properties. Here, we investigated how reward influences color-driven affect in perception. In Experiment 1, we assessed competition between blue and red patches during a temporal-order judgment (TOJ) across a range of stimulus onset asynchronies (SOAs).

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The ability to accurately predict violence and other forms of serious antisocial behavior would provide important societal benefits, and there is substantial enthusiasm for the potential predictive accuracy of neuroimaging techniques. Here, we review the current status of violence prediction using actuarial and clinical methods, and assess the current state of neuroprediction. We then outline several questions that need to be addressed by future studies of neuroprediction if neuroimaging and other neuroscientific markers are to be successfully translated into public policy.

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Will Analytics Suppress a Diversity of Ideas in Psychological Science?

Perspect Psychol Sci

November 2017

Human Development, Human Neuroscience Institute, Cornell University.

In this article, I suggest that an overreliance on analytics to assess faculty productivity and the diffusion of ideas may inadvertently suppress innovation. Even when these productivity-diffusion metrics are used to promote an individual's work, the use of such external guideposts may bias scientific choices and curb a psychological scientist's earnest inclination to synthesize or take scientific risks. Analytics are not inert but can change the path and progress of science itself, potentially reducing the diversity of ideas in psychological science.

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Behavioral studies using delay and social discounting as indices of self-control and altruism, respectively, have revealed functional similarities between farsighted and social decisions. However, neural evidence for this functional link is lacking. Twenty-five young adults completed a delay and social discounting task during fMRI scanning.

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Delay of gratification captures elements of temptation and self-denial that characterize real-life problems with money and other problem behaviors such as unhealthy risk taking. According to fuzzy-trace theory, decision makers mentally represent social values such as delay of gratification in a coarse but meaningful form of memory called "gist." Applying this theory, we developed a gist measure of delay of gratification that does not involve quantitative trade-offs (as delay discounting does) and hypothesize that this construct explains unique variance beyond sensation seeking and inhibition in accounting for problem behaviors.

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Recent neuroscience models of adolescent brain development attribute the morbidity and mortality of this period to structural and functional imbalances between more fully developed limbic regions that subserve reward and emotion as opposed to those that enable cognitive control. We challenge this interpretation of adolescent development by distinguishing risk-taking that peaks during adolescence (sensation seeking and impulsive action) from risk taking that declines monotonically from childhood to adulthood (impulsive choice and other decisions under known risk). Sensation seeking is primarily motivated by exploration of the environment under ambiguous risk contexts, while impulsive action, which is likely to be maladaptive, is more characteristic of a subset of youth with weak control over limbic motivation.

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Background: Adherence to evidence-based antibiotic therapy guidelines for treatment of upper respiratory tract infections (URIs) varies widely among clinicians. Understanding this variability is key for reducing inappropriate prescribing.

Objective: To measure how emergency department (ED) clinicians' perceptions of antibiotic prescribing risks affect their decision-making.

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Article Synopsis
  • Resting-state functional MRI (rs-fMRI) is a noninvasive method used to study brain networks by analyzing BOLD signals, but traditional correlation cannot show how information flows between different brain regions.
  • A new method called prediction correlation is introduced, which uses one BOLD signal to predict another, thereby revealing effective connectivity in the brain.
  • Validation of prediction correlation showed it performs well in simulations, avoids false connections in complex scenarios, and successfully captures brain network organization in actual data, allowing for analysis of interregional connectivity in individual subjects.
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Individual parcellation of resting fMRI with a group functional connectivity prior.

Neuroimage

August 2017

Signal and Image Processing Institute, University of Southern California, Los Angeles, CA, United States. Electronic address:

Cortical parcellation based on resting fMRI is an important tool for investigating the functional organization and connectivity of the cerebral cortex. Group parcellation based on co-registration of anatomical images to a common atlas will inevitably result in errors in the locations of the boundaries of functional parcels when they are mapped back from the atlas to the individual. This is because areas of functional specialization vary across individuals in a manner that cannot be fully determined from the sulcal and gyral anatomy that is used for mapping between atlas and individual.

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The human brain tracks dynamic changes within the social environment, forming and updating representations of individuals in our social milieu. This mechanism of social navigation builds an increasingly complex map of persons with whom we are familiar and form attachments to guide adaptive social behaviors. We examined the neural representation of known others along a continuum of attachment using fMRI.

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Human eyes convey a remarkable variety of complex social and emotional information. However, it is unknown which physical eye features convey mental states and how that came about. In the current experiments, we tested the hypothesis that the receiver's perception of mental states is grounded in expressive eye appearance that serves an optical function for the sender.

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Background: Age-related brain changes leading to altered socioemotional functioning may increase vulnerability to financial exploitation. If confirmed, this would suggest a novel mechanism leading to heightened financial exploitation risk in older adults. Development of predictive neural markers could facilitate increased vigilance and prevention.

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Salience network engagement with the detection of morally laden information.

Soc Cogn Affect Neurosci

July 2017

Laboratory of Brain and Cognition, Department of Human Development, Human Neuroscience Institute, Cornell University, Ithaca, NY, USA.

Moral cognition is associated with activation of the default network, regions implicated in mentalizing about one's own actions or the intentions of others. Yet little is known about the initial detection of moral information. We examined the neural correlates of moral processing during a narrative completion task, which included an implicit moral salience manipulation.

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Anticorrelation between the default network (DN) and dorsal attention network (DAN) is thought to be an intrinsic aspect of functional brain organization reflecting competing functions. However, the effect size of functional connectivity (FC) between the DN and DAN has yet to be established. Furthermore, the stability of anticorrelations across distinct DN subsystems, different contexts, and time, remains unexplored.

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Multi-echo fMRI replication sample of autobiographical memory, prospection and theory of mind reasoning tasks.

Sci Data

December 2016

Laboratory of Brain and Cognition, Human Neuroscience Institute, Department of Human Development, Cornell University, Ithaca, New York 14853, USA.

The default network is involved in self-generated thought, a class of cognition that includes autobiographical memory, prospection, and reasoning about the mental states of others. We collected a replication sample of Spreng and Grady (J Cogn. Neurosci.

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Basal forebrain degeneration precedes and predicts the cortical spread of Alzheimer's pathology.

Nat Commun

November 2016

Laboratory of Brain and Cognition, Department of Human Development, Human Neuroscience Institute, Cornell University, Martha Van Rensselaer Hall G62C, Ithaca, New York 14853, USA.

There is considerable debate whether Alzheimer's disease (AD) originates in basal forebrain or entorhinal cortex. Here we examined whether longitudinal decreases in basal forebrain and entorhinal cortex grey matter volume were interdependent and sequential. In a large cohort of age-matched older adults ranging from cognitively normal to AD, we demonstrate that basal forebrain volume predicts longitudinal entorhinal degeneration.

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In this article we will briefly review how changes in brain and in cognitive and social functioning, across the spectrum from normal to pathological aging, can lead to decision-making impairments that increase abuse risk in many life domains (e.g., health care, social engagement, financial management).

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Article Synopsis
  • Mind-wandering is when your mind drifts away from what you’re doing and thinks about other things.
  • This research looks at how mind-wandering changes over time and connects to big brain networks.
  • Understanding mind-wandering can help us learn more about mental health issues like depression, anxiety, and ADHD.
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We used Sharable Knowledge Objects (SKOs) to create an Intelligent Tutoring System (ITS) grounded in Fuzzy-Trace Theory to teach women about obesity prevention: GistFit, getting the gist of healthy eating and exercise. The theory predicts that reliance on gist mental representations (as opposed to verbatim) is more effective in reducing health risks and improving decision making. Technical information was translated into decision-relevant gist representations and gist principles (i.

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