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Using fMRI to Study Valuation and Choice
(InTech Open, 2014-05-31)
The ability to make decisions relies on brain mechanisms designed to value our environment and elicit appropriate actions based on those values. These mechanisms allow an agent to predict the value of a potential action ...
What is value—accumulated reward or evidence?
(Frontiers, 2012-11-02)
Why are you reading this abstract? In some sense, your answer will cast the exercise as valuable-but what is value? In what follows, we suggest that value is evidence or, more exactly, log Bayesian evidence. This implies ...
New approaches to investigating social gestures in autism spectrum disorder
(BMC, 2012-05-24)
The combination of economic games and human neuroimaging presents the possibility of using economic probes to identify biomarkers for quantitative features of healthy and diseased cognition. These probes span a range of ...
Monte Carlo Planning Method Estimates Planning Horizons during Interactive Social Exchange
(PLOS, 2015-06)
Reciprocating interactions represent a central feature of all human exchanges. They have been the target of various recent experiments, with healthy participants and psychiatric populations engaging as dyads in multi-round ...
Predicting the knowledge–recklessness distinction in the human brain
(NAS, 2017-02-09)
Criminal convictions require proof that a prohibited act was performed in a statutorily specified mental state. Different legal consequences, including greater punishments, are mandated for those who act in a state of ...
Functional brain network changes associated with maintenance of cognitive function in multiple sclerosis
(Frontiers, 2010-11-22)
In multiple sclerosis (MS) functional changes in connectivity due to cortical reorganization could lead to cognitive impairment (CI), or reflect a re-adjustment to reduce the clinical effects of widespread tissue damage. ...
Ready…Go: Amplitude of the fMRI Signal Encodes Expectation of Cue Arrival Time
(PLOS, 2009-08-04)
What happens when the brain awaits a signal of uncertain arrival time, as when a sprinter waits for the starting pistol? And what happens just after the starting pistol fires? Using functional magnetic resonance imaging ...
Neural signatures of strategic types in a two-person bargaining game
(NAS, 2010-09-28)
The management and manipulation of our own social image in the minds of others requires difficult and poorly understood computations. One computation useful in social image management is strategic deception: our ability ...
Active inference and agency: optimal control without cost functions
(Springer, 2012-08-03)
This paper describes a variational free-energy formulation of (partially observable) Markov decision problems in decision making under uncertainty. We show that optimal control can be cast as active inference. In active ...
Interoception drives increased rational decision-making in meditators playing the ultimatum game
(Frontiers, 2011-04-18)
Human decision-making is often conceptualized as a competition between cognitive and emotional processes in the brain. Deviations from rational processes are believed to derive from inclusion of emotional factors in ...