Simon P Kelly

Neural latent representation of implicit perceptual decision confidence signatures from brain-wide intracranial EEG

The paper identifies robust low-dimensional neural latent representations of implicit perceptual decision confidence using brain-wide iEEG data without explicit confidence reports.

Readout and delayed transmission of initial afferent V1 activity in decisions about stimulus contrast

The paper investigates whether early visual processing signals predict perceptual decisions about stimulus contrast, finding that the C1 component can predict decisions for a narrow range of response times.

A Movement-Independent Signature of Urgency During Human Perceptual Decision Making

The paper identifies a neural signature of urgency in human perceptual decision making that operates independently of movement, using ERP data from three experiments.

Perceptual glimpses are locally accumulated and globally maintained at distinct processing levels

The paper investigates how neural systems integrate intermittent perceptual evidence during decision-making, finding distinct patterns of evidence accumulation at different processing levels.

Prior probability cues bias sensory encoding with increasing task exposure

The paper shows that probabilistic cues bias both motor preparation and sensory evidence encoding during a contrast discrimination task, with sensory effects emerging after extended task exposure.

Neurophysiological markers of successful learning in healthy aging

This study identifies P300 amplitude as a neurophysiological marker of successful learning, showing it decreases with learning success in both young and older adults.

Multiphasic value biases in fast-paced decisions

The paper investigates how value biases influence fast-paced perceptual decisions through distinct phases of anticipation, detection, and discrimination.

The role of premature evidence accumulation in making difficult perceptual decisions under temporal uncertainty

The paper shows that subjects begin accumulating evidence before informative stimuli appear, adjusting onset timing based on previous trial foreperiods to handle temporal uncertainty.

Behavioural and neural signatures of perceptual evidence accumulation are modulated by pupil-linked arousal

This study examines how pupil-linked arousal modulates neural and behavioural signatures of perceptual evidence accumulation during decision-making.

Reconciling age-related changes in behavioural and neural indices of human perceptual decision making

This study compares age-related changes in neural and computational models of decision making, finding discrepancies and using neural data to refine the model.