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Tasting the unexpected: disconfirmation of expectations leads to lower perceived food value in an invertebrate

Oberhauser, F. B. ; Czaczkes, T. J.


To make sensible decisions, both humans and other animals must compare the available options against a reference point-either other options or previous experience. Options of higher quality than the reference are considered good value. However, many perceptible attributes of options are value-neutral, such as flower scent. Nonetheless, such value-neutral differences may be part of an expectation. ...


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