Assume a Spherical Chicken: Analytic Constraints, Inertia Tensor Information, and Wielded Rod Length Perception

Cabe, Patrick A.

doi:10.1080/00222895.2019.1565527

Cited by 2 publications

(2 citation statements)

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“…Among these common features, participants relied on inertia tensor information during both tactile exploration and visual inspection. While several studies have proven the role of inertia tensor in tactile perception ( Pagano et al, 1994 ; Carello et al, 1996 ; Kingma et al, 2002 ; Cabe, 2019 ), the role of proprioceptive features in visual perception is unclear. The integration of perception with active exploration, however, offers a possible explanation: when participants explore an object in a VR environment using a controller, they are able to change the object orientation without any restriction to view objects from all sides; hence, they can collect inertia information, such as the length, width, height, and mass distribution of the object, while rotating their wrists to control the orientation of objects.…”

Section: Discussionmentioning

confidence: 99%

“…One possible way to describe the mass distribution in a rigid body is the inertia tensor (F13). Previous studies have identified the informational value of the inertia tensor in the tactile perception of object properties ( Pagano et al, 1994 ; Carello et al, 1996 ; Kingma et al, 2002 ; Cabe, 2019 ). The eigenvalues of the inertia tensor or principal axis (F14) have been shown to be related to the perception of an object’s shape, length, width, height, and heaviness.…”

Section: Methodsmentioning

confidence: 99%

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Visual and Tactile Sensory Systems Share Common Features in Object Recognition

Tabrik

Behroozi

Schlaffke

et al. 2021

eNeuro

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Although we use our visual and tactile sensory systems interchangeably for object recognition on a daily basis, little is known about the mechanism underlying this ability. This study examined how 3D shape features of objects form two congruent and interchangeable visual and tactile perceptual spaces in healthy male and female participants. Since active exploration plays an important role in shape processing, a virtual reality environment was used to visually explore 3D objects called digital embryos without using the tactile sense. In addition, during the tactile procedure, blindfolded participants actively palpated a 3D-printed version of the same objects with both hands. We first demonstrated that the visual and tactile perceptual spaces were highly similar. We then extracted a series of 3D shape features to investigate how visual and tactile exploration can lead to the correct identification of the relationships between objects. The results indicate that both modalities share the same shape features to form highly similar veridical spaces. This finding suggests that visual and tactile systems might apply similar cognitive processes to sensory inputs that enable humans to rely merely on one modality in the absence of another to recognize surrounding objects.

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