Abstract：
:Experiments were performed to evaluate the spatial summation areas of the u.v.-, blue-, green- and red-sensitive cone mechanisms of goldfish. All the cone mechanisms were in compliance of Ricco's law, summing target radiance linearly over a certain range of target diameters with an average slope of 2.4. The critical diameters of the blue-, green- and red-sensitive cone mechanisms were all close to 6 deg. However, the critical diameter for the u.v.-sensitive cone mechanism was 8.0 deg, clearly different form than other cone mechanisms. The observation that the u.v.-sensitive cone mechanism has a larger spatial summation area suggests that u.v.-sensitive ganglion cells may have larger receptive field centers.
journal_name
Vision Resjournal_title
Vision researchauthors
Hawryshyn CWdoi
10.1016/0042-6989(91)90106-fsubject
Has Abstractpub_date
1991-01-01 00:00:00pages
563-6issue
3eissn
0042-6989issn
1878-5646pii
0042-6989(91)90106-Fjournal_volume
31pub_type
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