Responses of Photoreceptors in Hermissenda
1972 ◽
Vol 60
(6)
◽
pp. 631-649
◽
The five photoreceptors in the eye of the mollusc Hermissenda crassicornis respond to light with depolarization and firing of impulses. The impulses of any one cell inhibit other cells, but the degree of inhibition differs in different pairs. Evidence is presented to show that the interactions occur at terminal branches of the photoreceptor axons, inside the cerebropleural ganglion. Properties of the generator potential are examined and it is shown that the depolarization develops in two phases which are affected differently by extrinsic currents. Finally, it is shown that by enhancing the differences in the responses of individual cells to a variety of stimuli, the interactions may facilitate a number of simple discriminations.
1995 ◽
Vol 53
◽
pp. 532-533
Keyword(s):
1986 ◽
Vol 44
◽
pp. 482-483
Keyword(s):
1996 ◽
Vol 54
◽
pp. 228-229
1990 ◽
Vol 48
(4)
◽
pp. 480-481
1980 ◽
Vol 38
◽
pp. 212-213
◽
Keyword(s):
1985 ◽
Vol 46
(10)
◽
pp. 1657-1665
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1988 ◽
Vol 60
(02)
◽
pp. 209-216
◽
Keyword(s):