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THE RELATIVE INFLUENCE OF VISUAL ROTATIONAL KINEMATICS AND INERTIA ON THE PERCEPTION OF HEAVINESS

STREIT, MATTHEW S
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155239740

Abstract Details

2006, MA, University of Cincinnati, Arts and Sciences : Psychology.
Perceived heaviness of wielded objects has been shown to be a function of the rotational inertia of the wielded objects—the objects’ resistance to the rotational acceleration involved in wielding (e.g., Amazeen & Turvey, 1996). For example, if the resistance of an object to up-down wielding increases, the object will feel heavier. Streit, Shockley, Morris, and Riley (in press) hypothesized that the rotational inertia of a wielded object is optically specified by rotational kinematics—for a given applied force, the resulting motion is lawfully related to the resistance of an object to rotational acceleration. In support of their hypothesis, they demonstrated that if a virtual object rotates at a faster rate than the actual wielded object, the wielded object is perceived as systematically lighter and vice versa. Presumably, the visual (optically specified rotational inertia) and haptic (rotational inertia) sources of information are independent and additive sources that each directly map to perception (cf., Amazeen, 1999; Riley & Turvey, 2001). Seventeen participants estimated the heaviness of wielded objects. Rotational Inertia was manipulated by adjusting the position of a mass attached to the wielded object. Rotational kinematics were manipulated by applying a scaling factor to the rotational motion of virtual renderings of wielded objects—Rotational Gain. I predicted that perceived heaviness would be inversely proportional to Rotational Gain and proportional to Rotational Inertia. Results showed that both factors significantly influenced perceived heaviness, with no interaction. As predicted, Rotational Gain was inversely proportional to perceived heaviness and Rotational Inertia was proportional to perceived heaviness. The pattern of results supports the hypothesis of Streit et al. that rotational inertia can be detected both visually and haptically and that these sources of perceptual information may be perceptually independent.
Dr. Kevin Shockley (Advisor)
35 p.
Psychology, Experimental
inertia; rotational kinematics; heaviness; perception; specification

Recommended Citations

Citations

  • STREIT, M. S. (2006). THE RELATIVE INFLUENCE OF VISUAL ROTATIONAL KINEMATICS AND INERTIA ON THE PERCEPTION OF HEAVINESS [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155239740

    APA Style (7th edition)

  • STREIT, MATTHEW. THE RELATIVE INFLUENCE OF VISUAL ROTATIONAL KINEMATICS AND INERTIA ON THE PERCEPTION OF HEAVINESS. 2006. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155239740.

    MLA Style (8th edition)

  • STREIT, MATTHEW. "THE RELATIVE INFLUENCE OF VISUAL ROTATIONAL KINEMATICS AND INERTIA ON THE PERCEPTION OF HEAVINESS." Master's thesis, University of Cincinnati, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155239740

    Chicago Manual of Style (17th edition)

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© 2006, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.