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ajp22104-sup-0001-TableS1.docx112KTable 3: Description of variables included in PCA analysis. Coding is described as either “Point” (behavior recorded once a minute at a specified time) or “Yes-No” (tester recorded whether or not behavior occurred any time in past minute). Point-score variables involved, (1) cage position, (2) degree and type of responsiveness to the observer or other monkeys, (3) posture/locomotion, and (4) facial/vocal expression. These categories were scored on the 15-, 30-, 45-, or 60-second interval, respectively. Related point score variables are grouped together by number in the Coding column. All scores range from 0-4. The behaviors listed in bold reached the criteria for inclusion in the final analysis (see text).

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