Search Results - "REDMOND, G"

Decisions are expedited through multiple neural adjustments spanning the sensorimotor hierarchy by Steinemann, Natalie A., O’Connell, Redmond G., Kelly, Simon P.

“…When decisions are made under speed pressure, “urgency” signals elevate neural activity toward action-triggering thresholds independent of the sensory…”
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Bridging Neural and Computational Viewpoints on Perceptual Decision-Making by O’Connell, Redmond G., Shadlen, Michael N., Wong-Lin, KongFatt, Kelly, Simon P.

“…Sequential sampling models have provided a dominant theoretical framework guiding computational and neurophysiological investigations of perceptual…”
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Evaluating the neurophysiological evidence for predictive processing as a model of perception by Walsh, Kevin S., McGovern, David P., Clark, Andy, O'Connell, Redmond G.

“…For many years, the dominant theoretical framework guiding research into the neural origins of perceptual experience has been provided by hierarchical…”
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Internal and external influences on the rate of sensory evidence accumulation in the human brain by Kelly, Simon P, O'Connell, Redmond G

“…We frequently need to make timely decisions based on sensory evidence that is weak, ambiguous, or noisy resulting from conditions in the external environment…”
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A supramodal accumulation-to-bound signal that determines perceptual decisions in humans by O'Connell, Redmond G, Dockree, Paul M, Kelly, Simon P

“…This study uses EEG in humans to isolate and track an evolving, domain-general decision signal, which varies with accumulated evidence, but is independent of…”
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Neural evidence accumulation persists after choice to inform metacognitive judgments by Murphy, Peter R, Robertson, Ian H, Harty, Siobhán, O'Connell, Redmond G

“…The ability to revise one's certainty or confidence in a preceding choice is a critical feature of adaptive decision-making but the neural mechanisms…”
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The speed of sight: Individual variation in critical flicker fusion thresholds by Haarlem, Clinton S, O'Connell, Redmond G, Mitchell, Kevin J, Jackson, Andrew L

“…The critical flicker fusion threshold is a psychophysical measure commonly used to quantify visual temporal resolution; the fastest rate at which a visual…”
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Neurophysiology of Human Perceptual Decision-Making by O'Connell, Redmond G, Kelly, Simon P

“…The discovery of neural signals that reflect the dynamics of perceptual decision formation has had a considerable impact. Not only do such signals enable…”
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Pupil diameter covaries with BOLD activity in human locus coeruleus by Murphy, Peter R., O'Connell, Redmond G., O'Sullivan, Michael, Robertson, Ian H., Balsters, Joshua H.

“…The locus coeruleus‐noradrenergic (LC–NA) neuromodulatory system has been implicated in a broad array of cognitive processes, yet scope for investigating this…”
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The neural processes underlying perceptual decision making in humans: Recent progress and future directions by Kelly, Simon P., O’Connell, Redmond G.

“…•We review recent progress in understanding perceptual decision formation in humans.•Noninvasive methods limit identification of sensory evidence and decision…”
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Neurocomputational mechanisms of prior-informed perceptual decision-making in humans by Kelly, Simon P., Corbett, Elaine A., O’Connell, Redmond G.

“…To interact successfully with diverse sensory environments, we must adapt our decision processes to account for time constraints and prior probabilities. The…”
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Pupillometry and P3 index the locus coeruleus-noradrenergic arousal function in humans by Murphy, Peter R., Robertson, Ian H., Balsters, Joshua H., O'connell, Redmond G.

“…The adaptive gain theory highlights the pivotal role of the locus coeruleus–noradrenergic (LC‐NE) system in regulating task engagement. In humans, however,…”
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The classic P300 encodes a build-to-threshold decision variable by Twomey, Deirdre M., Murphy, Peter R., Kelly, Simon P., O'Connell, Redmond G.

“…The P300 component of the human event‐related potential has been the subject of intensive experimental investigation across a five‐decade period, owing to its…”
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The impact of natural aging on computational and neural indices of perceptual decision making: A review by Dully, Jessica, McGovern, David P., O’Connell, Redmond G.

“…It is well established that natural aging negatively impacts on a wide variety of cognitive functions and research has sought to identify core neural…”
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Impaired error awareness in healthy older adults: an age group comparison study by Sim, Joyce, Brown, Felicity L., O’Connell, Redmond G., Hester, Robert

“…Aging is associated with reduced conscious error detection but the brain regions mediating these changes have yet to be clarified. The present study examined…”
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Behavioural and neural signatures of perceptual decision-making are modulated by pupil-linked arousal by van Kempen, Jochem, Loughnane, Gerard M, Newman, Daniel P, Kelly, Simon P, Thiele, Alexander, O'Connell, Redmond G, Bellgrove, Mark A

“…The timing and accuracy of perceptual decision-making is exquisitely sensitive to fluctuations in arousal. Although extensive research has highlighted the role…”
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Evidence accumulation rate moderates the relationship between enriched environment exposure and age-related response speed declines by Brosnan, Méadhbh B, Pearce, Daniel J, O'Neill, Megan H, Loughnane, Gerard M, Fleming, Bryce, Zhou, Shou-Han, Chong, Trevor T-J, Nobre, Anna C, O Connell, Redmond G, Bellgrove, Mark A

“…Older adults exposed to enriched environments (EE) maintain relatively higher levels of cognitive function, even in the face of compromised markers of brain…”
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Investigating opposite direction motion reports in random dot kinematograms by Mc Keown, Pat, Corbett, Elaine, O'Connell, Redmond G.

“…Continuous outcome random dot kinematogram (RDK) tasks reveal that participants sometimes produce Opposite Direction Motion Reports (ODMRs), motion reports in…”
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Target Selection Signals Influence Perceptual Decisions by Modulating the Onset and Rate of Evidence Accumulation by Loughnane, Gerard M., Newman, Daniel P., Bellgrove, Mark A., Lalor, Edmund C., Kelly, Simon P., O’Connell, Redmond G.

“…Computational and neurophysiological research has highlighted neural processes that accumulate sensory evidence for perceptual decisions [1]. These processes…”
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Neuropsychological Deficits in Adult ADHD: Evidence for Differential Attentional Impairments, Deficient Executive Functions, and High Self-Reported Functional Impairments by Salomone, Simona, Fleming, Grainne R., Bramham, Jessica, O’Connell, Redmond G., Robertson, Ian H.

“…Objective: This study is aimed to investigate neuropsychological deficits in adult ADHD. Method: Neuropsychological deficits in terms of executive functions,…”
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