Exploratory Hand Movements Enhance the Liking Effect in Haptics

When people choose between two items, they usually look at them alternately before deciding. The frequency and duration of contact are usually determined unconsciously. However, in a previous study, looking at one item for longer than the other increased participants’ preference for the former, but...

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Bibliographic Details
Published in:Perception (London) 2019-09, Vol.48 (9), p.850-861
Main Authors: Mitsuda, Takashi, Luo, Jiawei, Wang, Qiyan
Format: Article
Language:English
Subjects:
Adult
Choice Behavior - physiology
Decision Making - physiology
Eye Movement Measurements
Eye Movements
Female
Humans
Male
Object Attachment
Psychophysics
Touch
Touch Perception
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Summary:When people choose between two items, they usually look at them alternately before deciding. The frequency and duration of contact are usually determined unconsciously. However, in a previous study, looking at one item for longer than the other increased participants’ preference for the former, but only when they had to move their eyes to look at each item. This result implies that eye movements not only gather information but are also closely related to decision-making. By analogy, this study examines the relation between hand movements and haptic preference. When participants touched two handkerchiefs in a pre-determined order before choosing the one they preferred, the likelihood of choosing the more frequently touched handkerchief was greater than chance. Bias in the choice was greater with increased difference in the frequency of touching between the two handkerchiefs. It was also greater when participants moved their arm to touch the handkerchiefs, compared with when a machine carried the handkerchiefs to their hand. These results indicate that both the reaching movement for touching and the frequency of touching affect the preference judgment using haptics.
ISSN:0301-0066
1468-4233
DOI:10.1177/0301006619864483