Relation between simultaneous spatial-discrimination thresholds and luminance in man.
Behav Brain Res
; 14(1): 51-9, 1984 Oct.
Article
en En
| MEDLINE
| ID: mdl-6518080
ABSTRACT
Simultaneous spatial-discrimination thresholds of 6 human subjects were measured at luminances between 0.2 and 2000 cd/m2. Subjects were tested on a forced-choice discrimination task which required them to distinguish between test and control stimuli of high contrast square-wave gratings with similar space-average luminances. The form of the function depicting the relationship between acuity and luminance is similar to that obtained by other researchers. The estimated maximum acuity of 72 cycles/degree (c/deg) is higher than the commonly cited value of 60 c/deg and this is probably due to the combination of the high stimulus luminance and the psychophysical technique employed in this study.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Percepción Espacial
/
Discriminación en Psicología
Tipo de estudio:
Prognostic_studies
Límite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Behav Brain Res
Año:
1984
Tipo del documento:
Article