Related Experiment Video
Updated: Feb 10, 2026

Measuring Statistical Learning Across Modalities and Domains in School-Aged Children Via an Online Platform and Neuroimaging Techniques
Published on: June 30, 2020
Development of Asymmetric Vection for Radial Expansion or Contraction Motion: Comparison Between School-Age Children
Nobu Shirai1, Shuich Endo2, Shigehito Tanahashi3
1Department of Psychology, Faculty of Humanities, Niigata University, Japan.
Abstract:
Vection is illusory self-motion elicited by visual stimuli and is more easily induced by radial contraction than expansion flow in adults. The asymmetric feature of vection was reexamined with 18 younger (age: 6-8 years) and 19 older children (age: 9-11 years) and 20 adults. In each experimental trial, participants observed either radial expansion or contraction flow; the latency, cumulative duration, and saturation of vection were measured. The results indicated that the latency for contraction was significantly shorter than that for expansion in all age-groups. In addition, the latency and saturation were significantly shorter and greater, respectively, in the younger or older children compared with the adults, regardless of the flow pattern. These results indicate that the asymmetry in vection for expansion or contraction flow emerges by school age, and that school-age children experience significantly more rapid and stronger vection than adults.
Related Concept Videos
Expansion and Contraction in Masonry Walls
To...
Rotation of Asymmetric Top
The relationship between the angular momentum of any rigid body and its angular velocity, both of which are vectors, involves the moment of inertia. The moment of inertia is a scalar quantity only for spherically symmetric...
Adult Stem Cells
Radial System Protection
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
Muscle Contraction
Muscle Contraction

