The shape of self-motion perception--II. framework and principles for simple and complex motion

Area of Science:

• Human Perception
• Neuroscience
• Biomechanics

Background:

• Numerous studies investigate human self-motion perception, but often focus on limited motion types.
• A unified approach is needed to encompass diverse linear and angular motion components.

Purpose of the Study:

• To present a formal framework for human self-motion and orientation perception.
• To mathematically define the spaces of motion, sensor status, and perception.
• To investigate the perceptual map from actual to perceived motion.

Main Methods:

• Developed a mathematically rigorous framework defining motion spaces and sensor-to-perception mappings.
• Utilized formal theory and published experimental data to analyze the perceptual map.
• Distinguished the roles of physics and the nervous system in motion perception.

Main Results:

• Presented a framework encompassing all linear and angular velocity/acceleration components.
• Formalized six principles (two for simple, four for complex motion perception).
• Demonstrated the framework's utility in comparing diverse experimental findings.

Conclusions:

• The framework provides a foundation for explaining and predicting self-motion perception phenomena.
• It enhances the investigation of complex motions encountered in daily life and unusual environments.
• Facilitates comparison and contrast of results across studies with different motion types.