J Farley Norman
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Explore the profile of J Farley Norman including associated specialties, affiliations and a list of published articles.
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Recent Articles
1.
Norman J, Graham J, Eaton J
J Vis
. 2025 Feb;
25(2):7.
PMID: 39951282
A single psychophysical experiment evaluated observers' ability to detect visual patterns embedded in noise; effects of stimulus complexity and observer age were also evaluated. Eighteen younger and older observers participated...
2.
Norman J, Ramirez A, Bryant E, Adcock P, Parekh H, Brase A, et al.
Sci Rep
. 2024 Nov;
14(1):27657.
PMID: 39532971
Nonrigid forms of motion are commonplace in everyday life. Given previously documented age-related deteriorations in various tasks involving motion (discriminating speed, identifying motion direction, etc.), an experiment was conducted to...
3.
Norman J, Lewis J, Ramirez A, Bryant E, Adcock P, Peterson R
Sci Rep
. 2024 Feb;
14(1):3207.
PMID: 38332238
Many previous studies have investigated visual distance perception, especially for small to moderate distances. Few experiments, however, have evaluated the perception of large distances (e.g., 100 m or more). The...
4.
Norman J, Lewis J, Bryant E, Conn J
Sci Rep
. 2023 Aug;
13(1):12748.
PMID: 37550419
It has been known for more than 160 years that highly occluded objects that would normally be visually unrecognizable can be successfully identified when they move. This anorthoscopic perception relies...
5.
Norman J, Baig M, Graham J, Lewis J
Sci Rep
. 2022 Dec;
12(1):20811.
PMID: 36460782
Grouping by common fate plays an important role in how human observers perceive environmental objects. In this study, the effect of aging upon the ability to utilize common fate was...
6.
Norman J, Baig M, Eaton J, Graham J, Vincent T
Sci Rep
. 2022 Oct;
12(1):17148.
PMID: 36229476
An experiment evaluated the ability of 30 younger and older adults to visually judge object size under three conditions: (1) full cue, (2) in the dark, with linear perspective, and...
7.
Norman J, Eaton J, Gunter M, Baig M
Sci Rep
. 2022 Mar;
12(1):5412.
PMID: 35354916
Eighteen younger and older adults (mean ages were 20.4 and 72.8 years, respectively) participated in a tactile speed matching task. On any given trial, the participants felt the surfaces of...
8.
Dukes J, Norman J, Shartzer C
Vision Res
. 2022 Jan;
194:107992.
PMID: 35030510
The ability to visually perceive distances in depth was evaluated in two experiments. In both experiments, the observers were required to bisect a distance interval oriented in depth (8 m...
9.
Norman J, Shapiro H, Sanders K, Sher A
Vision Res
. 2021 Jun;
187:1-5.
PMID: 34091366
In this study 28 younger and older observers discriminated the global shapes of objects that were defined by differences in texture. The judged stimulus patterns were 3-point micropattern textures. On...
10.
Todd J, Norman J
J Vis
. 2020 Oct;
20(10):12.
PMID: 33030507
Two experiments are reported that investigated how the perceptual identification of glass is influenced by banding contours formed by internal specular interreflections within glass materials. Observers made material categorization judgments...