University of Twente Student Theses
The face-eye mismatch hypothesis: The role of a mismatch in face and eye region in the emergence of the UV effect
Schlüter, Jonas (2024) The face-eye mismatch hypothesis: The role of a mismatch in face and eye region in the emergence of the UV effect.
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| Abstract: | Since the discovery of the Uncanny Valley effect, the feeling of creepiness in response to near human-like stimuli, researchers have been looking for its cause. The present study investigates the face-eye mismatch hypothesis, which states that a mismatch between the face and eye region results in the eerie feeling. Thus, causing the UV effect. To test this hypothesis a new stimulus set was created with the help of AI generation. In the current study, 26 participants were presented with congruent and incongruent human and primate stimuli. Congruent faces were not manipulated. Incongruent faces have an altered eye region that consists of a darkened sclera for human stimuli and a set of human eyes for primate stimuli. Congruent human faces were rated as more likeable compared to incongruent human faces. Primate congruent faces were rated more likeable than their incongruent counterparts, although the difference was much smaller than in human stimuli. Thus, our results support the face-eye mismatch hypothesis. The sub-hypothesis stated that oscillation count is increased for incongruent stimuli. The oscillation count was slightly lower for primate stimuli than for human stimuli. However, the oscillation count did not differ across congruency conditions for both species. Therefore, the findings do not support the theory that oscillation counts can be used as proxy measurement for eerieness. Keywords: uncanny valley, eye tracking, oscillation |
| Item Type: | Essay (Master) |
| Faculty: | BMS: Behavioural, Management and Social Sciences |
| Subject: | 77 psychology |
| Programme: | Psychology MSc (66604) |
| Link to this item: | https://purl.utwente.nl/essays/99820 |
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