Abstract:
:The blowfly visual system is a well-suited model to investigate the functional consequences of adaptation. Similar to cortical motion-sensitive neurons, fly tangential cells are directional selective and adapt during prolonged stimulation. Here we demonstrate in a tangential cell large changes in directionality after adaptation with motion in one direction. Surprisingly, depending on stimulation parameters, sensitivity for motion in the adapted direction relative to the unadapted direction can be either enhanced or attenuated. A simple model reproduces our results. It only incorporates previously identified changes in contrast sensitivity with motion adaptation. Thus, novel forms of motion adaptation seem unnecessary.
journal_name
Vision Resjournal_title
Vision researchauthors
Kalb J,Egelhaaf M,Kurtz Rdoi
10.1016/j.visres.2008.05.004subject
Has Abstractpub_date
2008-07-01 00:00:00pages
1735-42issue
16eissn
0042-6989issn
1878-5646pii
S0042-6989(08)00260-5journal_volume
48pub_type
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