منابع مشابه
Cerebral ambiguity
What do we really know about cerebral blood flow (CBF) control? Within the boundaries of our current knowledge, is there an easy test of clinical importance that can eloquently describe the status quo of CBF regulatory processes? Remarkably, the brain alone consumes 20% of the body’s chemical energy, even though it accounts for only 2% of the body’s mass. This high consumption of energy is cruc...
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Consider the following choice problem, known as “Ellsberg’s three-color urn example”, or simply the “Ellsberg Paradox” (Ellsberg [7]). An urn contains 30 red balls, and 60 green and blue balls, in unspecified proportions; subjects are asked to compare (i) a bet on a red draw vs. a bet on a green draw, and (ii) a bet on a red or blue draw vs. a bet on a green or blue draw. If the subject wins a ...
متن کاملSemantic Ambiguity and Perceived Ambiguity
I explore some of the issues that arise when trying to establish a connection between the underspecification hypothesis pursued in the NLP literature and work on ambiguity in semantics and in the psychological literature. A theory of underspecification is developed ‘from the first principles’, i.e., starting from a definition of what it means for a sentence to be semantically ambiguous and from...
متن کاملDifferentiating ambiguity and ambiguity attitude
The objective of this paper is to show how ambiguity, and a decision maker (DM)’s response to it, can be modelled formally in the context of a general decision model. We introduce a relation derived from the DM’s preferences, called ‘‘unambiguous preference’’, and show that it can be represented by a set of probabilities. We provide such set with a simple differential characterization, and argu...
متن کاملDefining Ambiguity and Ambiguity Attitude
According to the well-known distinction attributed to Knight (1921), there are two kinds of uncertainty. The first, called “risk,” corresponds to situations in which all events relevant to decision making are associated with obvious probability assignments (which every decision maker agrees to). The second, called “(Knightian) uncertainty” or (following Ellsberg (1961)) “ambiguity,” corresponds...
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ژورنال
عنوان ژورنال: Brain and Behavior
سال: 2014
ISSN: 2162-3279
DOI: 10.1002/brb3.277