Affiliation: California Institute of Technology
- Neural differentiation of expected reward and risk in human subcortical structuresKerstin Preuschoff
Computation and Neural Systems Program, Social Cognitive Neuroscience Laboratory, California Institute of Technology, 1200 East California Boulevard, 228 77, Pasadena, California 91125, USA
Neuron 51:381-90. 2006..These results suggest that the primary task of the dopaminergic system is to convey signals of upcoming stochastic rewards, such as expected reward and risk, beyond its role in learning, motivation, and salience...
- Human insula activation reflects risk prediction errors as well as riskKerstin Preuschoff
Computation and Neural Systems Program and Division of Humanities and Social Sciences, Caltech, Pasadena, California 91125, USA
J Neurosci 28:2745-52. 2008..As such, our findings indicate that our understanding of the neural basis of reward anticipation under uncertainty needs to be expanded to include risk prediction...
- Investigating signal integration with canonical correlation analysis of fMRI brain activation dataAntoine Bruguier
Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125, USA
Neuroimage 41:35-44. 2008..We show that the brain adds the signals of ER and risk to form a measure that activates the medial prefrontal cortex, consistent with the role of this brain structure in the evaluation of monetary gambles...
- Adding prediction risk to the theory of reward learningKerstin Preuschoff
Computational and Neural Systems, California Institute of Technology, Pasadena, CA 91125, USA
Ann N Y Acad Sci 1104:135-46. 2007..Evidence is discussed that suggests that the dopaminergic system in the (human and nonhuman) primate brain encodes prediction risk, and that prediction errors are indeed scaled with prediction risk (adaptive encoding)...