Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Joseph F. Sturr"'
Publikováno v:
Vision Research. 37(4):475-481
Rod sensitivity was measured with a criterion-free psychophysical method at 10 deg in the horizontal meridian of the nasal field of the left eye on 26 young (mean age, 24.1 yr) and 14 older (mean age 72.6 yr) observers in good ocular health. A 1 deg,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d6cb74519ca2cf3da24148da789e561
Publikováno v:
NeuroRehabilitation. 6:193-201
Patients who have sustained traumatic brain injury (TBI) often experience a new, intense and chronic photophobia. Photophobia, an intolerance to light, is an incompletely understood, subjective symptom, which has been divided into ocular and central
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68f449d96bc71e5f1df7ac39025261e2
https://doi.org/10.3233/nre-1996-6305
https://doi.org/10.3233/nre-1996-6305
Autor:
Joseph F. Sturr, Harvey A. Taub
Publikováno v:
Educational Gerontology. 16:273-281
Eighty older adults (M — 70.1 years, range — 60‐82 years) participated in an evaluation of the methods used for studying informed consent for research studies. Multiple choice and fill‐in questions were selected as representatives of commonly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fc16feda3a883dcad6cfcb8ce032eff
https://doi.org/10.1080/0380127900160304
https://doi.org/10.1080/0380127900160304
Autor:
Joseph F. Sturr, Lan Zhang
Publikováno v:
Optometry and vision science : official publication of the American Academy of Optometry. 72(3)
Purpose. This study examined the temporal summation properties of the aging visual system under a wide range of background luminances. Methods. Contrast thresholds for 0.5 cpd gratings for 12 younger (mean age 20.6 years) and 12 older (mean age 71.6
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9dc0aff5ccbbad4cc0d6e21799b2a97
https://pubmed.ncbi.nlm.nih.gov/7609943
https://pubmed.ncbi.nlm.nih.gov/7609943
Autor:
Daniel J. Hannon, Joseph F. Sturr
Publikováno v:
The Changing Visual System ISBN: 9781461364979
In this paper we will be discussing methods and mathematical models for identifying the loci of sensitivity losses that occur with age. The overall goal is to describe an approach to examining changes in the regulation of sensitivity in the aging vis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3d5536fce1af438babf781913aa70e0
https://doi.org/10.1007/978-1-4615-3390-0_16
https://doi.org/10.1007/978-1-4615-3390-0_16
Publikováno v:
Human factors. 32(1)
Sixty young (18−25 years) and 91 older volunteers (60-87 years) were tested for static visual acuity under six different luminance levels ranging from 245.5 cd/m2 (photopic) to 0.2 cd/m2 (mesopic). The results showed significant differences in log
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::855edad91ae8387fe3e4f0095a25a4c3
https://pubmed.ncbi.nlm.nih.gov/2376405
https://pubmed.ncbi.nlm.nih.gov/2376405
Publikováno v:
Noninvasive Assessment of the Visual System.
The rapid mechanisms of sensitivity regulation following light offset are distinct from the more commonly studied slower form of dark adaptation and are called early dark adaptation (EDA) (Baker, 1953, 1963; Rinalducci, 1967; Geisler, 1983). It is we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2a06e5b7c09606dbdb9fa8f99843d5f
https://doi.org/10.1364/navs.1990.tha3
https://doi.org/10.1364/navs.1990.tha3
Publikováno v:
Vision Research. 28:1247-1253
Temporal summation functions for 0.416 and 7.5 c/deg sinusoidal gratings were measured in young and old observers in order to test the hypothesis of a shift in sensitivity from “transient” to “sustained” channels in the aging visual system. R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2838f140553c752119392409ba7f3f5
https://doi.org/10.1016/0042-6989(88)90040-5
https://doi.org/10.1016/0042-6989(88)90040-5
Publikováno v:
The Journal of General Psychology. 114:363-372
Using a backward-masking paradigm with a bias-free and ceiling-free psychophysical task, we tested hypnotized and control subjects for speed of visual information processing. Approximately half of each group received visual imagery suggestions in an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc0f30ae4cc5333d9583fdf48206989d
https://doi.org/10.1080/00221309.1987.9711074
https://doi.org/10.1080/00221309.1987.9711074
Publikováno v:
Journal of Gerontology. 41:743-747
Foveal increment thresholds were measured in young, middle-aged, and older observers. These thresholds, which involved the detection of a small test flash as a function of the intensity of a larger background adapting field (AF), were measured at the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26aee50d5934e08a8601f39aa4366e28
https://doi.org/10.1093/geronj/41.6.743
https://doi.org/10.1093/geronj/41.6.743