Visual search for orientation of faces by a chimpanzee (Pan troglodytes): face-specific upright superiority and the role of facial configural properties

@article{Tomonaga2006VisualSF,
  title={Visual search for orientation of faces by a chimpanzee (Pan troglodytes): face-specific upright superiority and the role of facial configural properties},
  author={Masaki Tomonaga},
  journal={Primates},
  year={2006},
  volume={48},
  pages={1-12}
}
A previous experiment showed that a chimpanzee performed better in searching for a target human face that differed in orientation from distractors when the target had an upright orientation than when targets had inverted or horizontal orientation [Tomonaga (1999a) Primate Res 15:215–229]. This upright superiority effect was also seen when using chimpanzee faces as targets but not when using photographs of a house. The present study sought to extend these results and explore factors affecting… 
Discrimination of faces and houses by rhesus monkeys: the role of stimulus expertise and rotation angle
TLDR
Results showed significant linear impairments for all stimulus categories, including houses, however, compared to the upright images, only rhesus faces resulted in worse performance at rotation angles greater than 45°, suggesting stronger configural processing for stimuli for which subjects had the greatest expertise.
Efficient search for a face by chimpanzees (Pan troglodytes)
TLDR
It is reported that chimpanzees detected chimpanzee faces among non-facial objects quite efficiently and showed that a front-view face was more readily detected than a profile, suggesting the important role of eye-to-eye contact.
Title Faces capture the visuospatial attention of chimpanzees ( Pantroglodytes ) : evidence from a cueing experiment
Background: Faces, as socially relevant stimuli, readily capture human visuospatial attention. Although faces also play important roles in the social lives of chimpanzees, the closest living species
The face inversion effect in non-human primates revisited - an investigation in chimpanzees (Pan troglodytes)
TLDR
It is concluded that the face inversion effect in chimpanzees is modulated by the level of expertise of face processing, which is systematically different between the two age groups of chimpanzee participants.
Faces capture the visuospatial attention of chimpanzees (Pan troglodytes): evidence from a cueing experiment
TLDR
Chimpanzee's visuospatial attention was easily captured by the face stimuli, and this effect was face specific and stronger for upright faces than inverted, suggesting the specificity to upright faces.
Effects of tilted orientations and face-like configurations on visual search asymmetry in macaques
TLDR
It is demonstrated that macaques can search a target efficiently to detect both tilted lines among non-tilted lines and upright faces among inverted faces, clarifying that there are several types of visual search asymmetry in macaques.
Geometric distortions affect face recognition in chimpanzees (Pan troglodytes) and monkeys (Macaca mulatta)
TLDR
It is argued that the comparative approach to the study of face recognition reveals the impact that individual experience and social organization has on visual cognition.
Getting to the Bottom of Face Processing. Species-Specific Inversion Effects for Faces and Behinds in Humans and Chimpanzees (Pan Troglodytes)
TLDR
It is shown that humans demonstrate a face, but not a behind inversion effect and that chimpanzees show a behind, but no clear face inversionEffect, which might have attuned the human brain to process faces, and the human face to become more behind-like.
Title Getting to the Bottom of Face Processing. Species-Specific Inversion Effects for Faces and Behinds in Humans and Chimpanzees (Pan Troglodytes)
For social species such as primates, the recognition of conspecifics is crucial for their survival. As demonstrated by the ‘face inversion effect’, humans are experts in recognizing faces and unlike
Facial perception of conspecifics: chimpanzees (Pan troglodytes) preferentially attend to proper orientation and open eyes
TLDR
The results suggest the possibility that open eyes play an important role in the configural processing of faces and that chimpanzees perceive and process open and closed eyes differently.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 74 REFERENCES
Visual Search for the Orientations of Faces by a Chimpanzee (Pan troglodytes)
One female chimpanzee was tested on perception of orientation of faces using a visual search task. In Experiment 1, the subject showed better performance in the tasks in which the upright human faces
Why Faces May Be Special: Evidence of the Inversion Effect in Chimpanzees
TLDR
These data are the first to provide evidence for the inversion effect using several classes of face stimuli in a great ape species and support previous studies in humans that suggest the invert effect occurs for stimuli for which subjects have developed an expertise.
Inversion effect in perception of human faces in a chimpanzee (Pan troglodytes)
Three experiments investigated the inversion effect in face perception by a chimpanzee (Pantroglodytes) under the matching-to-sample paradigm. The first two experiments addressed the inversion effect
Perception of pictorial human faces by baboons: Effects of stimulus orientation on discrimination performance
The effect of stimulus rotation was assessed in four Guinea baboons (Papio papio), using pictures of familiar human faces presented in a computerized go/no-go task. In Experiment 1, 2 baboons were
Memory for pictures of upright and inverted primate faces in humans (Homo sapiens), squirrel monkeys (Saimiri sciureus), and pigeons (Columba livia).
TLDR
It is suggested that similar evolved mechanisms for primate face recognition in people and monkeys are responsible for the pattern of data reported.
How do rhesus monkeys (Macaca mulatta) scan faces in a visual paired comparison task?
TLDR
These studies indicate that non-human primates carry out the visual analysis of complex images such as faces in a characteristic and quantifiable manner.
Monkey and Human Face Perception: Inversion Effects for Human Faces But Not for Monkey Faces or Scenes
TLDR
Three rhesus monkeys and two groups of 10 human subjects judged upright or inverted pictures as same or different, indicating similar face-processing mechanisms in monkeys and humans despite experiential and evolutionary differences.
Are faces perceived as configurations more by adults than by children
Abstract Adult face recognition is severely hampered by stimulus inversion. Several investigators have attributed this vulnerability to the effect of orientation on encoding relational aspects of
Is the inversion effect in rhesus monkeys face-specific?
Abstract This study investigated the face inversion effect in rhesus monkeys (Macaca mulatta). Face stimuli consisted of ten black-and-white examples of unfamiliar rhesus monkey faces, brown capuchin
How Do Monkeys Look at Faces?
TLDR
Comparisons to viewing patterns of four rhesus monkeys to a set of 1- and 3-sec video segments of conspecific facial displays indicate that motion does not significantly affect the viewing patterns to expressive facial displays, and when given a choice, monkeys spend a relatively large amount of time inspecting the face, especially the eyes, as opposed to areas surrounding the face.
...
1
2
3
4
5
...