The Perception & Action Podcast 538 – Turvey, Lectures on Perception: An Ecological Perspective, Chapters 9 and 10 (JC49)
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May 20, 2025 Joined by Andrew Wilson, an expert in perception and action, the discussion dives into Michael Turvey's groundbreaking ideas on spatial perception. They explore key concepts like 'local sign' and the influence of helmet and Gibson's theories. The conversation challenges traditional views on sensation, emphasizing the ecological context of perception. They also discuss how evolving geometrical frameworks shape our understanding of space and perception, making connections to philosophical insights and the complexities of eye movement research.
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Space as Mode of Perception
- Space is not an object we perceive but a mode in which perception occurs.
- Our perception involves understanding spatial relationships, not perceiving space as a separate entity.
Multiple Valid Geometries Exist
- Discovery of non-Euclidean geometries revealed multiple coherent ways to describe space.
- This challenges the idea of a single, absolute geometric framework underpinning perception.
Fractal Geometry in Perception
- Ecological geometry often requires fractal geometry to describe natural objects.
- Perceptual metrics depend on the observer's body scale and vary with conditions.
