Paper Info
Title
Oscillations in human orbitofrontal cortex during even chance gambling.
Abstract
Evaluating value and risk as well as comparing expected and actual outcomes is the crux of decision making and reinforcement based learning. In this study, we record from stereotactic electroencephalograph depth electrodes in a human subject in numerous areas in the brain. We focus on the lateral and medial orbitofrontal cortex while they perform a gambling task involving betting on a high card. Preliminary time-frequency analysis shows modulations in the 5-15Hz band that is well synced to the different events of the task. These oscillations increase in both high betting scenarios as well as in losing scenarios though their effects cannot be decoupled. However, the activity between lateral and medial orbitofrontal cortex is a lot more homogenous than previously seen. Additionally, the timing of some of these oscillations occurs before even a response in the visual cortex. This evidence hints that these areas encode priors that influence our decision in future statistically ambiguous scenarios.
Year
DOI
Venue
2014
10.1109/EMBC.2014.6944719
EMBC
Keywords
Field
DocType
high betting scenario,biomedical electrodes,electroencephalography,visual cortex,lateral orbitofrontal cortex,losing scenario,brain,even chance gambling,stereotactic electroencephalograph depth electrodes,bandwidth 5 hz to 15 hz,human orbitofrontal cortex oscillations,medial orbitofrontal cortex,time-frequency analysis
Brain mapping,Neuroscience,Visual cortex,Prefrontal cortex,Psychology,Cognitive psychology,Orbitofrontal cortex,Cerebral cortex,Frontal lobe,Reinforcement,Electroencephalography
Conference
Volume
ISSN
Citations 
2014
1557-170X
0
PageRank 
References 
Authors
0.34
0
8
Name
Order
Citations
PageRank
Kevin Kahn151.63
Matthew S D Kerr252.45
Hyun-Joo Park320.88
Susan D Thompson451.30
Juan Bulacio554.14
Jorge Gonzalez-Martinez6226.07
Sridevi V Sarma7256.41
John T. Gale833.29