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CHAPTER 17.docx

4 Pages
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Department
Psychology
Course Code
PSYC 3280
Professor
Suzanne Mcdonald

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11/30/2013 CHAPTER 17: ANIMAL PERSONALITIES  Personality differences: consistent long­term behavioural differences among individuals  Game theory model used for personality types (use the producers vs. scroungers model used for foraging) Producers: search for food, so they face the costs associated with uncovering new food patches  Scroungers: watch producers and learn where new food patches are from them  Best soln to the game is to have a combo of both  Example of how the game is used for personality: some individuals take the role of a leader and some as a  follower  Leaders are more bold and have access to resources first (but pay the cost of predation) and followers are  less bold so don’t get things first BOLDNESS AND SHYNESS Boldness: tendency to takes risks in familiar and unfamiliar situations  Considered as similar to sensation seeking  Shyness: refers to the reluctance to take risks or engage in unfamiliar activity  Similar to behavioural inhibition Natural selection may favour either type in different contexts Bold and Shy Pumpkinseed Fish Researchers captured the fish by using two techniques:  (1) used the novel object test: the fish would have to swim somewhere to collect the novel object, but it  would be hard for them to get out – idea is that the bold fish would swim in it more often  (2) dragged a largeseine  (type of net) through a pond after the traps were collected and captured as many  fish as they could – idea is there would be more shy fish   Results: trapped fish r less likely to flee from human observers; trapped had more food in their diet; they  carried
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