Search Results - "Philiastides, Marios G"

Separate neural representations of prediction error valence and surprise: Evidence from an fMRI meta‐analysis by Fouragnan, Elsa, Retzler, Chris, Philiastides, Marios G.

“…Learning occurs when an outcome differs from expectations, generating a reward prediction error signal (RPE). The RPE signal has been hypothesized to…”
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Neural correlates of evidence accumulation during value-based decisions revealed via simultaneous EEG-fMRI by Pisauro, M. Andrea, Fouragnan, Elsa, Retzler, Chris, Philiastides, Marios G.

“…Current computational accounts posit that, in simple binary choices, humans accumulate evidence in favour of the different alternatives before committing to a…”
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Confidence control for efficient behaviour in dynamic environments by Balsdon, Tarryn, Philiastides, Marios G.

“…Signatures of confidence emerge during decision-making, implying confidence may be of functional importance to decision processes themselves. We formulate an…”
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Human VMPFC encodes early signatures of confidence in perceptual decisions by Gherman, Sabina, Philiastides, Marios G

“…Choice confidence, an individual's internal estimate of judgment accuracy, plays a critical role in adaptive behaviour, yet its neural representations during…”
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Causal Role of Dorsolateral Prefrontal Cortex in Human Perceptual Decision Making by Philiastides, Marios G., Auksztulewicz, Ryszard, Heekeren, Hauke R., Blankenburg, Felix

“…The way that we interpret and interact with the world entails making decisions on the basis of available sensory evidence. Recent primate neurophysiology…”
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Secondary motor integration as a final arbiter in sensorimotor decision-making by Balsdon, Tarryn, Verdonck, Stijn, Loossens, Tim, Philiastides, Marios G

“…Sensorimotor decision-making is believed to involve a process of accumulating sensory evidence over time. While current theories posit a single accumulation…”
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Inferring Macroscale Brain Dynamics via Fusion of Simultaneous EEG-fMRI by Philiastides, Marios G, Tu, Tao, Sajda, Paul

“…Advances in the instrumentation and signal processing for simultaneously acquired electroencephalography and functional magnetic resonance imaging (EEG-fMRI)…”
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Distinct spatiotemporal brainstem pathways of outcome valence during reward- and punishment-based learning by Carvalheiro, Joana, Philiastides, Marios G.

“…Learning to seek rewards and avoid punishments, based on positive and negative choice outcomes, is essential for human survival. Yet, the neural underpinnings…”
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Quality of evidence for perceptual decision making is indexed by trial-to-trial variability of the EEG by Ratcliff, Roger, Philiastides, Marios G, Sajda, Paul

“…A fundamental feature of how we make decisions is that our responses are variable in the choices we make and the time it takes to make them. This makes it…”
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Distinct basal ganglia contributions to learning from implicit and explicit value signals in perceptual decision-making by Balsdon, Tarryn, Pisauro, M. Andrea, Philiastides, Marios G.

“…Metacognitive evaluations of confidence provide an estimate of decision accuracy that could guide learning in the absence of explicit feedback. We examine how…”
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Neural Representation of Task Difficulty and Decision Making during Perceptual Categorization: A Timing Diagram by Philiastides, Marios G, Ratcliff, Roger, Sajda, Paul

“…When does the brain know that a decision is difficult to make? How does decision difficulty affect the allocation of neural resources and timing of constituent…”
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Toward Personalized Music-Therapy: A Neurocomputational Modeling Perspective by Lai-Tan, Nicole, Philiastides, Marios G., Kawsar, Fahim, Deligianni, Fani

“…Music therapy has emerged recently as a successful intervention that improves patient outcomes in a large range of neurological and mood disorders without…”
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EEG-Informed fMRI Reveals Spatiotemporal Characteristics of Perceptual Decision Making by Philiastides, Marios G, Sajda, Paul

“…Single-unit and multiunit recordings in primates have already established that decision making involves at least two general stages of neural processing:…”
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Auditory information enhances post-sensory visual evidence during rapid multisensory decision-making by Franzen, Léon, Delis, Ioannis, De Sousa, Gabriela, Kayser, Christoph, Philiastides, Marios G.

“…Despite recent progress in understanding multisensory decision-making, a conclusive mechanistic account of how the brain translates the relevant evidence into…”
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Temporal Characterization of the Neural Correlates of Perceptual Decision Making in the Human Brain by Philiastides, Marios G., Sajda, Paul

“…Single and multi-unit recordings in primates have identified spatially localized neuronal activity correlating with an animal's behavioral performance. Due to…”
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Influence of Branding on Preference-Based Decision Making by Philiastides, Marios G., Ratcliff, Roger

“…Branding has become one of the most important determinants of consumer choices. Intriguingly, the psychological mechanisms of how branding influences decision…”
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How embodied is perceptual decision making? Evidence for separate processing of perceptual and motor decisions by Filimon, Flavia, Philiastides, Marios G, Nelson, Jonathan D, Kloosterman, Niels A, Heekeren, Hauke R

“…The extent to which different cognitive processes are "embodied" is widely debated. Previous studies have implicated sensorimotor regions such as lateral…”
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mechanistic account of value computation in the human brain by Philiastides, Marios G, Biele, Guido, Heekeren, Hauke R

“…To make decisions based on the value of different options, we often have to combine different sources of probabilistic evidence. For example, when shopping for…”
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A drift diffusion model analysis of age-related impact on multisensory decision-making processes by Bolam, Joshua, Diaz, Jessica A., Andrews, Mark, Coats, Rachel O., Philiastides, Marios G., Astill, Sarah L., Delis, Ioannis

“…Older adults (OAs) are typically slower and/or less accurate in forming perceptual choices relative to younger adults. Despite perceptual deficits, OAs gain…”
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Spatiotemporal neural characterization of prediction error valence and surprise during reward learning in humans by Fouragnan, Elsa, Queirazza, Filippo, Retzler, Chris, Mullinger, Karen J., Philiastides, Marios G.

“…Reward learning depends on accurate reward associations with potential choices. These associations can be attained with reinforcement learning mechanisms using…”
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