Effects of optimism on gambling in the rat slot machine task
| Autor: | J. Kregiel, Dominik Rafa, Rafal Rygula, Piotr Popik |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
0301 basic medicine
Male media_common.quotation_subject Decision Making Vulnerability Pessimism Personality Assessment Rats Sprague-Dawley 03 medical and health sciences Behavioral Neuroscience Judgment 0302 clinical medicine Optimism Perception Personality Animals Psychological testing media_common Psychological Tests Cognitive bias 030104 developmental biology Gambling Models Animal Personality Assessment Inventory Cues Psychology Social psychology 030217 neurology & neurosurgery |
| Zdroj: | Behavioural brain research. 300 |
| ISSN: | 1872-7549 |
| Popis: | Although gambling disorder is a serious social problem in modern societies, information about the behavioral traits that could determine vulnerability to this psychopathology is still scarce. In this study, we used a recently developed ambiguous-cue interpretation (ACI) paradigm to investigate whether 'optimism' and 'pessimism' as behavioral traits may determine the gambling-like behavior of rodents. In a series of ACI tests (cognitive bias screening), we identified rats that displayed 'pessimistic' and 'optimistic' traits. Subsequently, using the rat slot machine task (rSMT), we investigated if the 'optimistic'/'pessimistic' traits could determine the crucial feature of gambling-like behavior that has been investigated in rats and humans: the interpretation of 'near-miss' outcomes as a positive (i.e., win) situation. We found that 'optimists' did not interpret 'near-miss', 'near loss', or 'clear win' as win trials more often than their 'pessimistic' conspecifics; however, the 'optimists' were statistically more likely to reach for a reward in the hopeless 'clear loss' situation. This agrees with human studies and provides a platform for modeling interactions between behavioral traits and gambling in animals. |
| Databáze: | OpenAIRE |
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