Manual lateralization in wild redfronted lemurs (Eulemur rufifrons) during spontaneous actions and in an experimental task
Article first published online: 29 OCT 2013
Copyright © 2013 Wiley Periodicals, Inc.
American Journal of Physical Anthropology
Volume 153, Issue 1, pages 61–67, January 2014
How to Cite
Schnoell, A. V., Huebner, F., Kappeler, P. M. and Fichtel, C. (2014), Manual lateralization in wild redfronted lemurs (Eulemur rufifrons) during spontaneous actions and in an experimental task. Am. J. Phys. Anthropol., 153: 61–67. doi: 10.1002/ajpa.22403
- Issue published online: 9 DEC 2013
- Article first published online: 29 OCT 2013
- Manuscript Accepted: 2 OCT 2013
- Manuscript Revised: 9 SEP 2013
- Manuscript Received: 12 MAR 2013
- German Primate Center
- hand use;
The dominant use of one hand is a striking feature of humans, but manual lateralization can be found in a variety of other species as well. In primates, the lateralization in hand use varies among species and several theories such as the “postural origin,” “task complexity,” or “development theory” have been suggested to explain this variation. In order to contribute comparative data on this phenomenon from a basal primate, we studied manual lateralization in wild redfronted lemurs (Eulemur rufifrons). Data were collected on four groups at Kirindy Forest, western Madagascar, during spontaneous actions and by confronting them with artificial feeding boxes. The lemurs did not exhibit manual lateralization on a group level in either condition. More individuals showed a hand preference in the experimental task, and the preferences were stronger compared to spontaneous actions. The direction of individual hand preferences was not consistent across the two conditions. The results of this study show that measuring manual laterality in different contexts can yield different results. Manual lateralization in wild redfronted lemurs therefore seems to be flexible and situation dependent and probably not ecologically relevant in their natural habitat. Am J Phys Anthropol 153:61–67, 2014. © 2013 Wiley Periodicals, Inc.