Dynamic properties of cat horizontal cell light responses |
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Authors: | J. Molenaar W.A. van de Grind R. Eckhorn |
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Affiliation: | Neuroinformatics Group Psychophysiology Laboratory, Jan Swammerdam Institute le Const. Huyaensstraat 20, 1054 BW Amsterdam ,The Netherlands |
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Abstract: | The presented sinewave squarewave light flicker responses of cat horizontal cells confirm the classification into Hn- and Hm-units described by Foersteret al. (1977a.b)Expl Brain Res.29, 347–385. However, we find somewhat higher order filter properties and develop a refinement of the model proposed by Foersteret al. to explain our new results. Using this model further analysis of Hm-unit responses suggests that cat retinal receptors have a smaller temporal bandwidth the smaller the spatial extent of the stimulus. Finally results from Gaussian white noise (GWN) stimulation are compared with those from classical flicker stimuli and Bode-plots. There are strong similarities in the results of these two types of analysis but some interesting differences are also found and discussed. |
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Keywords: | Horizontal cells Cat retina Dynamic light responses White noise stimulation Flicker response |
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