| Title | The spiral aftereffect : influence of stimulus size and viewing distance on the duration of illusory motion. |
|---|---|
| Record ID | 39022 |
| Personal Name Creator |
Collins, William E.; Schroeder, David J. |
| Corporate Creator | United States. Office of Aviation Medicine |
| Publisher | Civil Aerospace Medical Institute |
| Publication Date | 19680500 |
| Language | English |
| Abstract | The study examined some effects of stimulus size and distance on the persistence of one type of illusory motion, viz., the spiral aftereffect (SAE). Duration of SAE was investigated with stimuli of 2, 4, 8, 12, and 16 inches in diameter. The distance between the observers and the rotating spirals was varied to produce visual angles between 1 deg. 12 min. and 18 deg. 56 min. of arc. Data indicate that the duration of illusory motion reaches peak values between approximately 2 deg. -4 deg. of visual angle. |
| Rosap ID | dot:20848 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/20848 |
| TRT Terms | Air pilots; Motion; Rotation; Spirals; Motion perception; Visual perception; Vision; Size; Distance; Night vision; Vision tests; Eye fixations; Eye movements; Eye location; Analysis of variance; Speed; Lighting; Experiments; Human subject testing |
| General Subjects | Air pilots; Optical illusions; Motion; Rotational motion; Spirals; Motion perception (Vision); Visual perception; Vision--Testing; Night vision; Lighting; Size perception; Distances; Eye--Movements; Analysis of variance; Speed |
| Classification | NTL - AVIATION - AVIATION; NTL - AVIATION - Aviation Human Factors |
| Geographical Coverage |
United States |
| Report Number | Am 68-10; DOT/FAA/AM-68/10 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/39000/39000/39022/AM68-10.pdf |
| Format | |
| Database | NTL Digital Repository |