Sex differences in longitudinal personality stability in chimpanzees
| Autor: | Lisa A. Reamer, Rachel L. Kendal, Hani D. Freeman, Emma G. Flynn, Steven J. Schapiro, Bruce Rawlings, Susan P. Lambeth |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Cultural Studies media_common.quotation_subject 05 social sciences Cognition Sex-differences 010603 evolutionary biology 01 natural sciences Personality factors Dominance (ethology) Personality scale Anthropology Longitudinal Personality 0501 psychology and cognitive sciences 050102 behavioral science & comparative psychology Effects of sleep deprivation on cognitive performance Chimpanzees Psychology Applied Psychology Ecology Evolution Behavior and Systematics media_common Clinical psychology |
| Zdroj: | Evolutionary human sciences, 2020, Vol.2, pp.e46 [Peer Reviewed Journal] Rawlings, B, Flynn, E, Freeman, H, Reamer, L, Schapiro, S J, Lambeth, S & Kendal, R L 2020, ' Sex differences in longitudinal personality stability in chimpanzees ', Evolutionary Human Sciences, vol. 2, e46 . https://doi.org/10.1017/ehs.2020.45 |
| DOI: | 10.1017/ehs.2020.45 |
| Popis: | Personality factors analogous to the Big Five observed in humans are present in the great apes. However, few studies have examined the long-term stability of great ape personality, particularly using factor-based personality instruments. Here, we assessed overall group, and individual-level, stability of chimpanzee personality by collecting ratings for chimpanzees (N = 50) and comparing them with ratings collected approximately 10 years previously, using the same personality scale. The overall mean scores of three of the six factors differed across the two time points. Sex differences in personality were also observed, with overall sex differences found for three traits, and males and females showing different trajectories for two further traits over the 10 year period. Regardless of sex, rank-order stability analysis revealed strong stability for dominance; individuals who were dominant at the first time point were also dominant 10 years later. The other personality factors exhibited poor to moderate rank-order stability, indicating that individuals were variable in their rank-position consistency over time. As many studies assessing chimpanzee cognition rely on personality data collected several years prior to testing, these data highlight the importance of collecting current personality data when correlating them with cognitive performance. |
| Databáze: | OpenAIRE |
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