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Human Decisions SIGNED

The Neural Determinants of Perceptual Decision Making in the Human Brain

Total Cost €

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EC-Contrib. €

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Partnership

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 Human Decisions project word cloud

Explore the words cloud of the Human Decisions project. It provides you a very rough idea of what is the project "Human Decisions" about.

speed    physically    breakthrough    recording    components    ambiguous    onto    questions    temporally    fitting    mechanism    decision    appropriate    experiments    confidence    monkey    window    triggers    perceptual    time    unambiguously    preparation    rate    unprecedented    electrophysiology    theories    deal    parallel    decisions    reliability    definitively    tracking    how    linked    mechanisms    reaching    action    brain    criterion    prominent    combination    presented    efforts    signals    discrete    chief    subjective    determines    accuracy    models    single    made    psychophysical    timing    signal    core    pressure    motor    center    predictions    theoretical    trial    aging    dependent    human    phenomena    invasive    adaptations    precise    dynamics    threshold    underpinning    sensory    reports    precisely    underlying    builds    encoding    weak    evidence    making    behavioral    neural    variations    tackling    paradigm    hampered    stages    provides    whereby    neurophysiological   

Project "Human Decisions" data sheet

The following table provides information about the project.

Coordinator
THE PROVOST, FELLOWS, FOUNDATION SCHOLARS & THE OTHER MEMBERS OF BOARD OF THE COLLEGE OF THE HOLY & UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN 

Organization address
address: College Green
city: DUBLIN
postcode: 2
website: www.tcd.ie

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Ireland [IE]
 Project website https://oconnell-lab.com/home/research/
 Total cost 1˙382˙642 €
 EC max contribution 1˙382˙642 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-05-01   to  2020-04-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE PROVOST, FELLOWS, FOUNDATION SCHOLARS & THE OTHER MEMBERS OF BOARD OF THE COLLEGE OF THE HOLY & UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN IE (DUBLIN) coordinator 1˙382˙642.00

Map

 Project objective

How do we make reliable decisions given sensory information that is often weak or ambiguous? Current theories center on a brain mechanism whereby sensory evidence is integrated over time into a “decision variable” which triggers the appropriate action upon reaching a criterion. Neural signals fitting this role have been identified in monkey electrophysiology but efforts to study the neural dynamics underpinning human decision making have been hampered by technical challenges associated with non-invasive recording. This proposal builds on a recent paradigm breakthrough made by the applicant that enables parallel tracking of discrete neural signals that can be unambiguously linked to the three key information processing stages necessary for simple perceptual decisions: sensory encoding, decision formation and motor preparation. Chief among these is a freely-evolving decision variable signal which builds at an evidence-dependent rate up to an action-triggering threshold and precisely determines the timing and accuracy of perceptual reports at the single-trial level. This provides an unprecedented neurophysiological window onto the distinct parameters of the human decision process such that the underlying mechanisms of several major behavioral phenomena can finally be investigated. This proposal seeks to develop a systems-level understanding of perceptual decision making in the human brain by tackling three core questions: 1) what are the neural adaptations that allow us to deal with speed pressure and variations in the reliability of the physically presented evidence? 2) What neural mechanism determines our subjective confidence in a decision? and 3) How does aging impact on the distinct neural components underpinning perceptual decision making? Each of the experiments described in this proposal will definitively test key predictions from prominent theoretical models using a combination of temporally precise neurophysiological measurement and psychophysical modelling.

 Publications

year authors and title journal last update
List of publications.
2015 Deirdre M. Twomey, Peter R. Murphy, Simon P. Kelly, Redmond G. O\'Connell
The classic P300 encodes a build-to-threshold decision variable
published pages: 1636-1643, ISSN: 0953-816X, DOI: 10.1111/ejn.12936
European Journal of Neuroscience 42/1 2019-05-29
2018 Redmond G. O’Connell, Peter R. Murphy
U-turns in the brain
published pages: 461-462, ISSN: 1097-6256, DOI: 10.1038/s41593-018-0122-4
Nature Neuroscience 21/4 2019-05-29
2017 Daniel P. Newman, Gerard M. Loughnane, Simon P. Kelly, Redmond G. O\'Connell, Mark A. Bellgrove
Visuospatial Asymmetries Arise from Differences in the Onset Time of Perceptual Evidence Accumulation
published pages: 3378-3385, ISSN: 0270-6474, DOI: 10.1523/JNEUROSCI.3512-16.2017
The Journal of Neuroscience 37/12 2019-05-29
2018 Redmond G. O’Connell, Michael N. Shadlen, KongFatt Wong-Lin, Simon P. Kelly
Bridging Neural and Computational Viewpoints on Perceptual Decision-Making
published pages: , ISSN: 0166-2236, DOI: 10.1016/j.tins.2018.06.005
Trends in Neurosciences 2019-05-29
2016 D. M. Twomey, S. P. Kelly, R. G. O\'Connell
Abstract and Effector-Selective Decision Signals Exhibit Qualitatively Distinct Dynamics before Delayed Perceptual Reports
published pages: 7346-7352, ISSN: 0270-6474, DOI: 10.1523/JNEUROSCI.4162-15.2016
Journal of Neuroscience 36/28 2019-05-29
2016 Gerard M. Loughnane, Daniel P. Newman, Mark A. Bellgrove, Edmund C. Lalor, Simon P. Kelly, Redmond G. O’Connell
Target Selection Signals Influence Perceptual Decisions by Modulating the Onset and Rate of Evidence Accumulation
published pages: 496-502, ISSN: 0960-9822, DOI: 10.1016/j.cub.2015.12.049
Current Biology 26/4 2019-05-29
2015 Peter R Murphy, Ian H Robertson, Siobhán Harty, Redmond G O\'Connell
Neural evidence accumulation persists after choice to inform metacognitive judgments
published pages: , ISSN: 2050-084X, DOI: 10.7554/eLife.11946
eLife 4 2019-05-29
2018 Jessica Dully, David P. McGovern, Redmond G. O’Connell
The impact of natural aging on computational and neural indices of perceptual decision making: A review
published pages: , ISSN: 0166-4328, DOI: 10.1016/j.bbr.2018.02.001
Behavioural Brain Research 2019-05-29
2018 Gerard M. Loughnane, Daniel P. Newman, Sarita Tamang, Simon P. Kelly, Redmond G. O\'Connell
Antagonistic Interactions Between Microsaccades and Evidence Accumulation Processes During Decision Formation
published pages: 2163-2176, ISSN: 0270-6474, DOI: 10.1523/JNEUROSCI.2340-17.2018
The Journal of Neuroscience 38/9 2019-05-29
2017 Siobhán Harty, Peter R. Murphy, Ian H. Robertson, Redmond G. O\'Connell
Parsing the neural signatures of reduced error detection in older age
published pages: 43-55, ISSN: 1053-8119, DOI: 10.1016/j.neuroimage.2017.08.032
NeuroImage 161 2019-05-29

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