Journal
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
Volume 275, Issue 1649, Pages 2353-2361Publisher
ROYAL SOC
DOI: 10.1098/rspb.2008.0417
Keywords
neural pathways; decision making; signal detection theory; sequential probability ratio test; optimal foraging; mammalian brain
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Funding
- EPSRC
- BBSRC
- Biotechnology and Biological Sciences Research Council [BB/C518949/1] Funding Source: researchfish
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Empirical findings suggest that the mammalian brain has two decision-making systems that act at different speeds. We represent the faster system using standard signal detection theory. We represent the slower (but more accurate) cortical system as the integration of sensory evidence over time until a certain level of confidence is reached. We then consider how two such systems should be combined optimally for a range of information linkage mechanisms. We conclude with some performance predictions that will hold if our representation is realistic.
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