How Shape Perception Works, in Two Dimensions and Three Dimensions. 2024

Kristina J Nielsen, and Charles E Connor
Krieger Mind/Brain Institute and Department of Neuroscience, Johns Hopkins University, Baltimore, Maryland, USA; email: Knielse4@jhu.edu, connor@jhu.edu.

The ventral visual pathway transforms retinal images into neural representations that support object understanding, including exquisite appreciation of precise 2D pattern shape and 3D volumetric shape. We articulate a framework for understanding the goals of this transformation and how they are achieved by neural coding at successive ventral pathway stages. The critical goals are (a) radical compression to make shape information communicable across axonal bundles and storable in memory, (b) explicit coding to make shape information easily readable by the rest of the brain and thus accessible for cognition and behavioral control, and (c) representational stability to maintain consistent perception across highly variable viewing conditions. We describe how each transformational step in ventral pathway vision serves one or more of these goals. This three-goal framework unifies discoveries about ventral shape processing into a neural explanation for our remarkable experience of shape as a vivid, richly detailed aspect of the natural world.

UI MeSH Term Description Entries

Related Publications

Kristina J Nielsen, and Charles E Connor
January 1988, Perception,
Kristina J Nielsen, and Charles E Connor
December 2015, Cellular & molecular biology letters,
Kristina J Nielsen, and Charles E Connor
September 2018, Trends in cognitive sciences,
Kristina J Nielsen, and Charles E Connor
September 1992, The Behavioral and brain sciences,
Kristina J Nielsen, and Charles E Connor
February 1983, Perception & psychophysics,
Kristina J Nielsen, and Charles E Connor
January 2016, NeuroImage,
Kristina J Nielsen, and Charles E Connor
August 1996, Journal of experimental psychology. Human perception and performance,
Kristina J Nielsen, and Charles E Connor
July 2021, Journal of personality and social psychology,
Kristina J Nielsen, and Charles E Connor
January 2012, Frontiers in psychology,
Kristina J Nielsen, and Charles E Connor
March 2012, Langmuir : the ACS journal of surfaces and colloids,
Copied contents to your clipboard!