Moving around Objects and Recognizing Them

1998 ◽  
Vol 86 (1) ◽  
pp. 267-276 ◽  
Author(s):  
F. Giusberti ◽  
T. Iachini ◽  
F. Pavani
Keyword(s):  
Mental Rotation ◽  
Spatial Information ◽  
Angular Displacement ◽  
Three Dimensional ◽  
Linear Increase ◽  
The Body ◽  
Experimental Task ◽  
Three Dimensional Objects ◽  
Spatial Properties ◽  
Rotated Objects

This research concerned the use of mental rotation in recognizing rotated objects. Instead of the classic Shepard's paradigm in which subjects were still while observing rotated objects, here subjects had to move (or imagine moving) around stationary three-dimensional objects put in the middle of the trajectory. Thus, depending on the viewing positions, such objects were seen under six different perspectives (from 30° to 180°). The latter task has been thought to be closer to everyday life in which we obtain information regarding objects from their spatial properties. The results do not follow the classic rules of mental rotation of an object predicting a linear increase of the time needed to recognize distorted objects as a function of their angular displacement. They also differ from data in the Literature about spatial imagery showing that access to spatial information is facilitated more when people actually move through a path than when they imagine moving. A probable explanation of this difference from the literature is discussed in relation to the particular involvement of the body in the experimental task.

scholarly journals The Comparison of Mental Rotation Performances and Academic Achievements in Students of the Faculty of Sport Sciences and Education Sciences

2020 ◽  
Vol 9 (3) ◽  
pp. 66
Author(s):  
Şenay Şahin ◽  
Ersin Şahin ◽  
Engin Sağdilek ◽  
Şerife Vatansever ◽  
Yakup Zühtü Birinci ◽  
...  
Keyword(s):  
Mental Rotation ◽  
Spatial Information ◽  
Critical Role ◽  
Three Dimensional ◽  
Instructional Technologies ◽  
Three Dimensional Objects ◽  
Academic Achievements ◽  
Visual Spatial ◽  
Significant Difference ◽  
And Control

Mental rotation (MR) is the ability to rotate three-dimensional objects using the imagination. As the ability to generate, retrieve, maintain, and manipulate visual-spatial information, MR plays a critical role throughout education and sport. In this aspect our objective in this study was to compare MR performances and academic achievement between students of art, foreign languages (FL), computer-instructional technologies (CIT) and physical education (PE). In the computer-based MR test, the image files of the library “Mental Rotation Stimulus Library” were used with the written permission of the author. A total of 144 participants composed of 79 males and 65 females volunteered in the study. Comparing the academic achievements (AA) with the PE group and art, CIT, FL and control groups; it was observed that all the groups are better than PE (p < 0.05). However, no significant difference was found between PE and all groups in MR performances (p > 0.05). In conclusion, PE students performed similarly with other students in terms of MR, although their AA were low. MR ability is clearly related not only to problem solving, acquiring mathematical knowledge and academic thinking but also to motor abilties.

scholarly journals Virtual Archaeology of Death and Burial: A Procedure for Integrating 3D Visualization and Analysis in Archaeothanatology

2021 ◽  
Vol 7 (1) ◽  
pp. 540-555
Author(s):  
Hayley L. Mickleburgh ◽  
Liv Nilsson Stutz ◽  
Harry Fokkens
Keyword(s):  
Spatial Information ◽  
3D Visualization ◽  
Rapid Development ◽  
Three Dimensional ◽  
3D Models ◽  
The Body ◽  
Test Case ◽  
Archaeology Of Death ◽  
Human Burials ◽  
3D Information

Abstract The reconstruction of past mortuary rituals and practices increasingly incorporates analysis of the taphonomic history of the grave and buried body, using the framework provided by archaeothanatology. Archaeothanatological analysis relies on interpretation of the three-dimensional (3D) relationship of bones within the grave and traditionally depends on elaborate written descriptions and two-dimensional (2D) images of the remains during excavation to capture this spatial information. With the rapid development of inexpensive 3D tools, digital replicas (3D models) are now commonly available to preserve 3D information on human burials during excavation. A procedure developed using a test case to enhance archaeothanatological analysis and improve post-excavation analysis of human burials is described. Beyond preservation of static spatial information, 3D visualization techniques can be used in archaeothanatology to reconstruct the spatial displacement of bones over time, from deposition of the body to excavation of the skeletonized remains. The purpose of the procedure is to produce 3D simulations to visualize and test archaeothanatological hypotheses, thereby augmenting traditional archaeothanatological analysis. We illustrate our approach with the reconstruction of mortuary practices and burial taphonomy of a Bell Beaker burial from the site of Oostwoud-Tuithoorn, West-Frisia, the Netherlands. This case study was selected as the test case because of its relatively complete context information. The test case shows the potential for application of the procedure to older 2D field documentation, even when the amount and detail of documentation is less than ideal.

Effects of prolonged weightlessness on mental rotation of three-dimensional objects

1993 ◽  
Vol 94 (1) ◽  
Author(s):  
Y. Matsakis ◽  
M. Lipshits ◽  
V. Gurfinkel ◽  
A. Berthoz
Keyword(s):  
Mental Rotation ◽  
Three Dimensional ◽  
Three Dimensional Objects

Mental rotation of representations of two-dimensional and three-dimensional objects.

1985 ◽  
Vol 39 (1) ◽  
pp. 100-129 ◽  
Author(s):  
Pierre Jolicœur ◽  
Sonya Regehr ◽  
Lyndon B. J. P. Smith ◽  
Garth N. Smith
Keyword(s):  
Mental Rotation ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Three Dimensional Objects

Real Three-Dimensional Objects: Effects on Mental Rotation

2011 ◽  
Vol 113 (1) ◽  
pp. 38-50 ◽  
Author(s):  
Michael C. Felix ◽  
Joshua D. Parker ◽  
Charles Lee ◽  
Kara I. Gabriel
Keyword(s):  
Mental Rotation ◽  
Three Dimensional ◽  
Three Dimensional Objects

Mental Rotation of Three-Dimensional Objects

Science ◽  
1971 ◽  
Vol 171 (3972) ◽  
pp. 701-703 ◽  
Author(s):  
R. N. Shepard ◽  
J. Metzler
Keyword(s):  
Mental Rotation ◽  
Three Dimensional ◽  
Three Dimensional Objects

scholarly journals A pilot study on the use of 3D printers in veterinary medicine

2021 ◽  
Vol 14 (3) ◽  
pp. 159-164
Author(s):  
Leonardo Leonardi ◽  
◽  
Roberto Marsili ◽  
Enrico Bellezza ◽  
Giovanni Angeli ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Bone Tissue ◽  
Three Dimensional ◽  
The Body ◽  
Porous Scaffolds ◽  
Layer By Layer ◽  
Three Dimensional Objects ◽  
Cellular Attachment

Additive manufacturing (AM) is the process of joining materials to create layer-by-layer three-dimensional objects using a 3D printer from a digital model. The great advantage of Additive Manufacturing is to allow a freer design than traditional processes. The development of additive manufacturing processes has permitted to optimize the production of the customized product through the modeling of the geometry and the knowledge of the morphometric parameters of the body structures. 3D printing has revolutionized the field of Regenerative Medicine because, starting from computerized tomography (CT) images and using traditional materials such as plastic and metals, it can provide customized prostheses for each patient, which adapt perfectly to the needs of the subject and act as structures support. 3D printing allows you to print three-dimensional porous scaffolds with a precise shape and chemical composition suitable for medical and veterinary use. Some of these scaffolds are biodegradable and appear to be ideal for bone tissue engineering. In fact, they are able to simulate extracellular matrix properties that allow mechanical support, favoring mechanical interactions and providing a model for cellular attachment and in vivo stimulation of bone tissue formation.

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