Individual Differences in Novelty-Seeking are Associated with Different Patterns of Preference in a ...

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" Individual Differences in Novelty-Seeking are Associated with Different Patterns of Preference in a Risk-Sensitivity Procedure in Rats "
Camarena Pérez, Héctor Octavio; García-Leal, Oscar

Document Type	:	AL
Record Number	:	936134
Doc. No	:	LA5d34q63k
Language of Document	:	English
Main Entry	:	Camarena Pérez, Héctor Octavio; García-Leal, Oscar
Title & Author	:	Individual Differences in Novelty-Seeking are Associated with Different Patterns of Preference in a Risk-Sensitivity Procedure in Rats [Article]\ Camarena Pérez, Héctor Octavio; García-Leal, Oscar
Title of Periodical	:	International Journal of Comparative Psychology
Volume/ Issue Number	:	28
Date	:	2015
Abstract	:	The preferences of organisms faced with changing conditions in food delivery situations have been studied under the rubric of risk-sensitivity. Optimal foraging theory often applies the energy budget model to explain the preferences shown by organisms, but in this paper we suggest a different approach, one based on the study of individual differences. A sample of rats was classified as high and low novelty-seeking. Afterwards, they were maintained at 75% or 90% of their body weight and exposed to a risk-sensitivity procedure. The results show that the novelty-seeking model is associated with different patterns of preference under a risk-sensitivity procedure, but that these patterns do not correlate with the level of food deprivation employed. Furthermore, we found that the spontaneous alternation between options in a choice situation correlates with the organism’s preference during a risk procedure. Considering recent findings in the area of animal and human decision-making, our results are explained in terms of altered behavioral processes.