Representation of Confidence Associated with a Decision by Neurons in the Parietal Cortex

@article{Kiani2009RepresentationOC,
  title={Representation of Confidence Associated with a Decision by Neurons in the Parietal Cortex},
  author={Roozbeh Kiani and Michael N. Shadlen},
  journal={Science},
  year={2009},
  volume={324},
  pages={759 - 764}
}
Decisive Monkeys Decision-making is a central theme in current research in cognitive neuroscience. Behavioral protocols have provided an entry into explorations of the neural processes that underlie decision-making. Empirical studies have provided support for a diffusion model in which information accumulates over time until a threshold is reached, with noisiness in the inputs related to decision errors. Kiani and Shadlen (p. 759) developed a behavioral task to study choice certainty and… Expand
Neural representations of confidence emerge from the process of decision formation during perceptual choices
TLDR
A paradigm whereby on some trials, prior to indicating their decision, participants could opt-out of the task for a small but certain reward captured participants' confidence on individual trials and allowed them to discriminate between electroencephalographic signals associated with certain-vs-uncertain trials. Expand
Distinct encoding of decision confidence in human medial prefrontal cortex
  • Dan Bang, S. Fleming
  • Psychology, Medicine
  • Proceedings of the National Academy of Sciences
  • 2018
TLDR
A psychophysical task to decouple confidence in a perceptual decision from both the reliability of sensory evidence and the relation of such evidence with respect to a choice boundary is devised and is consistent with the proposal that the brain maintains choice-dependent and choice-independent estimates of certainty. Expand
Effects of Cortical Microstimulation on Confidence in a Perceptual Decision
TLDR
A causal test by electrically stimulating areas of the visual cortex involved in motion perception suggests that the same sensory neural signals support choice, reaction time, and confidence in a decision and that artificial manipulation of these signals preserves the quantitative relationship between accumulated evidence and confidence. Expand
Supplementary Eye Field Encodes Confidence in Decisions Under Risk.
TLDR
The found neural signals in the supplementary eye field (SEF) of monkeys performing a gambling task that explicitly represent choice confidence independent from reward expectation indicate that choice confidence is an integral component of all forms of decision-making, whether they are based on perceptual evidence or on value estimations. Expand
Distinct encoding of decision confidence in human medial prefrontal cortex
TLDR
A psychophysical task is devised to decouple confidence in a perceptual decision from both the reliability of sensory evidence and the relation of such evidence with respect to a choice boundary, and illuminates why dysfunctional confidence often emerges following damage to prefrontal cortex. Expand
Dissociating decision confidence from evidence reliability in the human brain
Our confidence in a choice and the reliability of evidence pertaining to that choice appear to be inseparable quantities. However, recent computational frameworks suggest that the brain should encodeExpand
Choice, difficulty, and confidence in the brain
TLDR
A neuronal spiking attractor-based model of decision-making that makes predictions about synaptic and neuronal activity, the fMRI BOLD response, and behavioral choice as a function of the easiness of the decision, and thus decision confidence is described and analyzed. Expand
On the neuronal systems underlying perceptual decision-making and confidence in humans
Perceptual decision-making refers to the ability to arrive at categorical judgments about states of the outside world. Here we use functional magnetic resonance imaging and multivariate patternExpand
Cortical alpha activity predicts the confidence in an impending action
When we make a decision, we experience a degree of confidence that our choice may lead to a desirable outcome. Recent studies in animals have probed the subjective aspects of the choice confidenceExpand
Superior Colliculus Neuronal Ensemble Activity Signals Optimal Rather Than Subjective Confidence
TLDR
Results show that the SC signals optimal decision confidence similar to area LIP of cortex and also motivate future investigations to determine where in the brain signals related to subjective confidence reside. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 135 REFERENCES
Neural correlates, computation and behavioural impact of decision confidence
TLDR
The firing rates of many single neurons in the orbitofrontal cortex match closely to the predictions of confidence models and cannot be readily explained by alternative mechanisms, such as learning stimulus–outcome associations. Expand
Neural correlates of decision variables in parietal cortex
TLDR
The data indicate that a decision-theoretic model may provide a powerful new framework for studying the neural processes that intervene between sensation and action. Expand
Decision-making with multiple alternatives
TLDR
This work measured behavioral and physiological responses of monkeys on a two- and four-choice direction-discrimination decision task and observed a time-dependent rise in firing rates that may impose a deadline for deciding. Expand
Bounded Integration in Parietal Cortex Underlies Decisions Even When Viewing Duration Is Dictated by the Environment
TLDR
It is shown that monkeys performing a direction discrimination task commit to a choice when the accumulated evidence reaches a threshold level (or bound), sometimes long before the end of stimulus. Expand
Neural correlates of a decision in the dorsolateral prefrontal cortex of the macaque
TLDR
A combination of sensory integration and motor planning could reflect the conversion of visual motion information into a categorical decision about direction and thus give insight into the neural computations behind a simple cognitive act. Expand
Matching Behavior and the Representation of Value in the Parietal Cortex
TLDR
It is found that a simple model based on reward history can duplicate this behavior and that neurons in the parietal cortex represent the relative value of competing actions predicted by this model. Expand
The Bayesian brain: the role of uncertainty in neural coding and computation
TLDR
A major challenge for neuroscientists is to test ideas for how this might be achieved in populations of neurons experimentally, and so determine whether and how neurons code information about sensory uncertainty. Expand
Microstimulation of macaque area LIP affects decision-making in a motion discrimination task
TLDR
It is demonstrated that the discharge of LIP neurons is causally related to decision formation in the discrimination task and never directly evoked saccades, nor did it change reaction times in a simple saccade task. Expand
Neural computations that underlie decisions about sensory stimuli
TLDR
This work proposes neural computations that can account for the formation of categorical decisions about sensory stimuli by accumulating information over time into a single quantity: the logarithm of the likelihood ratio favoring one alternative over another. Expand
Probabilistic reasoning by neurons
TLDR
This work has trained two monkeys to choose between a pair of coloured targets after viewing four shapes, shown sequentially, that governed the probability that one of the targets would furnish reward, and learned to combine probabilistic information from the shape combinations. Expand
...
1
2
3
4
5
...