• Publications
  • Influence
Attention reverses the effect of prediction in silencing sensory signals.
Predictive coding models suggest that predicted sensory signals are attenuated (silencing of prediction error). These models, though influential, are challenged by the fact that prediction sometimesExpand
Attention induces conservative subjective biases in visual perception
It is found that attention can also lead to relatively conservative detection biases and lower visibility ratings in discrimination tasks, which may partially reflect the impression of 'seeing' the whole visual scene despite the authors' limited processing capacity outside of the focus of attention. Expand
Prestimulus Oscillatory Activity over Motor Cortex Reflects Perceptual Expectations
It is concluded that both endogenous and explicitly induced perceptual expectations bias the starting point of decision-related activity, before the accumulation of sensory evidence. Expand
Prior Expectation Modulates the Interaction between Sensory and Prefrontal Regions in the Human Brain
A task in which subjects were induced prior expectations about the direction of a moving-dot pattern and withheld the stimulus–response mapping until the subjects were prompted to respond found that subjects' performance was influenced by their expectation about upcoming motion direction. Expand
Continuous theta burst transcranial magnetic stimulation reduces resting state connectivity between visual areas.
It is found that occipital cTBS reliably decreased the resting state functional connectivity between regions of the early visual cortex and this issue was investigated in a second experiment in which subjects performed a perceptual discrimination task and indicated their level of certainty on each trial. Expand
Causal evidence for frontal cortex organization for perceptual decision making
A theoretical framework for frontal involvement in perceptual decision making is presented and it is found that progressively rostral regions of frontal cortex are involved in the control of progressively later stages of perceptual decisionMaking. Expand
Confidence Leak in Perceptual Decision Making
A robust intertask confidence leak is demonstrated and the existence of a novel metacognitive mechanism mediated by regions in the prefrontal cortex is pointed to, which predicted higher capacity for metacognition as well as greater gray matter volume in the cortex. Expand
Suboptimality in perceptual decision making
It is argued that verifying, rejecting, and expanding these explanations for suboptimal behavior – rather than assessing optimality per se – should be among the major goals of the science of perceptual decision making. Expand
Using ConJoint AnAlysis to deteCt disCriminAtion: reveAling Covert PreferenCes from overt ChoiCes
In an effort to continue the development of methods to understand social cognition, we adopt a technique called conjoint analysis that mathematically deduces preferences from the implied tradeoffsExpand
Stimulus expectation alters decision criterion but not sensory signal in perceptual decision making
Findings show that pre and post cues affect the decision through the same mechanisms and suggest that stimulus expectation alters the decision criterion but not the sensory signal itself. Expand