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Fechner, information, and shape perception.
Atten Percept Psychophys. 2011 Nov; 73(8):2353-78.AP

Abstract

How do retinal images lead to perceived environmental objects? Vision involves a series of spatial and material transformations--from environmental objects to retinal images, to neurophysiological patterns, and finally to perceptual experience and action. A rationale for understanding functional relations among these physically different systems occurred to Gustav Fechner: Differences in sensation correspond to differences in physical stimulation. The concept of information is similar: Relationships in one system may correspond to, and thus represent, those in another. Criteria for identifying and evaluating information include (a) resolution, or the precision of correspondence; (b) uncertainty about which input (output) produced a given output (input); and (c) invariance, or the preservation of correspondence under transformations of input and output. We apply this framework to psychophysical evidence to identify visual information for perceiving surfaces. The elementary spatial structure shared by objects and images is the second-order differential structure of local surface shape. Experiments have shown that human vision is directly sensitive to this higher-order spatial information from interimage disparities (stereopsis and motion parallax), boundary contours, texture, shading, and combined variables. Psychophysical evidence contradicts other common ideas about retinal information for spatial vision and object perception.

Authors+Show Affiliations

Vanderbilt University, Nashville, TN, USA. joe.lappin@vanderbilt.eduNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Review

Language

eng

PubMed ID

21879419

Citation

Lappin, Joseph S., et al. "Fechner, Information, and Shape Perception." Attention, Perception & Psychophysics, vol. 73, no. 8, 2011, pp. 2353-78.
Lappin JS, Norman JF, Phillips F. Fechner, information, and shape perception. Atten Percept Psychophys. 2011;73(8):2353-78.
Lappin, J. S., Norman, J. F., & Phillips, F. (2011). Fechner, information, and shape perception. Attention, Perception & Psychophysics, 73(8), 2353-78. https://doi.org/10.3758/s13414-011-0197-4
Lappin JS, Norman JF, Phillips F. Fechner, Information, and Shape Perception. Atten Percept Psychophys. 2011;73(8):2353-78. PubMed PMID: 21879419.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fechner, information, and shape perception. AU - Lappin,Joseph S, AU - Norman,J Farley, AU - Phillips,Flip, PY - 2011/9/1/entrez PY - 2011/9/1/pubmed PY - 2012/4/28/medline SP - 2353 EP - 78 JF - Attention, perception & psychophysics JO - Atten Percept Psychophys VL - 73 IS - 8 N2 - How do retinal images lead to perceived environmental objects? Vision involves a series of spatial and material transformations--from environmental objects to retinal images, to neurophysiological patterns, and finally to perceptual experience and action. A rationale for understanding functional relations among these physically different systems occurred to Gustav Fechner: Differences in sensation correspond to differences in physical stimulation. The concept of information is similar: Relationships in one system may correspond to, and thus represent, those in another. Criteria for identifying and evaluating information include (a) resolution, or the precision of correspondence; (b) uncertainty about which input (output) produced a given output (input); and (c) invariance, or the preservation of correspondence under transformations of input and output. We apply this framework to psychophysical evidence to identify visual information for perceiving surfaces. The elementary spatial structure shared by objects and images is the second-order differential structure of local surface shape. Experiments have shown that human vision is directly sensitive to this higher-order spatial information from interimage disparities (stereopsis and motion parallax), boundary contours, texture, shading, and combined variables. Psychophysical evidence contradicts other common ideas about retinal information for spatial vision and object perception. SN - 1943-393X UR - https://www.unboundmedicine.com/medline/citation/21879419/Fechner_information_and_shape_perception_ L2 - https://dx.doi.org/10.3758/s13414-011-0197-4 DB - PRIME DP - Unbound Medicine ER -