Abstract：
:A Westheimer -like function has been obtained for simple reaction time (RT) to target luminance increments superimposed upon homogeneous background fields. RT to a constant-luminance target progressively increases as the outer diameter of a constant-luminance background is increased up to approximately 6'-8'. Further increases in background diameter up to approximately 10'-22' then result in progressive decreases in RT. Beyond this background diameter RT remains relatively constant. The magnitude of this effect diminishes rapidly as target luminance is increased beyond a near-threshold value.
journal_name
Vision Resjournal_title
Vision researchauthors
Wilson Adoi
10.1016/0042-6989(84)90053-1subject
Has Abstractpub_date
1984-01-01 00:00:00pages
289-92issue
4eissn
0042-6989issn
1878-5646pii
0042-6989(84)90053-1journal_volume
24pub_type
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