Eye-tracking with nonhuman primates is now more accessible than ever before

Christopher J. Machado, Eric E. Nelson

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Human and nonhuman primates rely almost exclusively on vision for social communication. Therefore, tracking eye movements and examining visual scan paths can provide a wealth of information about many aspects of primate social information processing. Although eye-tracking techniques have been utilized with humans for some time, similar studies in nonhuman primates have been less frequent over recent decades. This has largely been owing to the need for invasive manipulations, such as the surgical implantation of devices to limit head movement, which may not be possible in some laboratories or at some universities, or may not be congruent with some experimental aims (i.e., longitudinal studies). It is important for all nonhuman primate researchers interested in visual information processing or operant behavior to realize that such invasive procedures are no longer necessary. Here, we briefly describe new methods for fully noninvasive video eye-tracking with adult rhesus monkeys (Macaca mulatta). We also describe training protocols that require only ∼30 days to accomplish and quality control measures that promote reliable data collection. It is our hope that this brief overview will reacquaint nonhuman primate researchers with the benefits of eye-tracking and promote expanded use of this powerful methodology.

Original languageEnglish (US)
Pages (from-to)562-569
Number of pages8
JournalAmerican Journal of Primatology
Volume73
Issue number6
DOIs
StatePublished - Jun 2011

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primate
Primates
eyes
information processing
Macaca mulatta
researchers
longitudinal studies
quality control
animal communication
control methods
methodology
communication

Keywords

  • Eye-tracking
  • Face scanning
  • Method
  • Noninvasive
  • Visual perception

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Eye-tracking with nonhuman primates is now more accessible than ever before. / Machado, Christopher J.; Nelson, Eric E.

In: American Journal of Primatology, Vol. 73, No. 6, 06.2011, p. 562-569.

Research output: Contribution to journalArticle

Machado, Christopher J. ; Nelson, Eric E. / Eye-tracking with nonhuman primates is now more accessible than ever before. In: American Journal of Primatology. 2011 ; Vol. 73, No. 6. pp. 562-569.
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