Pretectal neurons responding to slow wide-field retinal motion: Could they compensate for slow drift during fixation
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The visual response properties are described of a group of retinal slip neurons in the wallaby pretectum, referred to as slow cells. Their responses to motion are direction-selective: tempero-nasal and naso-temporal motion over the contralateral eye increase and decrease, respectively, the firing rate relative to the spontaneous level. Slow cells are maximally sensitive to image velocities from 0.08 to 10°/s. The present study focuses on slow cells that are maximally sensitive to image...[Show more]
dc.contributor.author | Price, N | |
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dc.contributor.author | Ibbotson, Michael | |
dc.date.accessioned | 2015-12-13T23:26:26Z | |
dc.date.available | 2015-12-13T23:26:26Z | |
dc.identifier.issn | 1442-6404 | |
dc.identifier.uri | http://hdl.handle.net/1885/92832 | |
dc.description.abstract | The visual response properties are described of a group of retinal slip neurons in the wallaby pretectum, referred to as slow cells. Their responses to motion are direction-selective: tempero-nasal and naso-temporal motion over the contralateral eye increase and decrease, respectively, the firing rate relative to the spontaneous level. Slow cells are maximally sensitive to image velocities from 0.08 to 10°/s. The present study focuses on slow cells that are maximally sensitive to image velocities below 1°/s. An interesting characteristic of 82% of slow cells is that once motion stops, the firing rate exhibits a same-sign after-response. This is characterized by a slow exponential return from the firing rate during motion to the spontaneous rate. The time constants of the after-responses are independent of the temporal frequency, velocity, duration and direction of the motion stimulus. It is proposed that the neurons may assist the stabilization of eye position during fixation. | |
dc.publisher | Blackwell Science Asia | |
dc.source | Clinical and Experimental Ophthalmology | |
dc.subject | Keywords: animal experiment; conference paper; directional vision; eye fixation; eye position; kangaroo; motion; nonhuman; oculomotor nerve; oculomotor system; optokinetic stimulation; retina cell; retina image; retina receptive field; signal detection; stimulus re Direction-selective; Fixation; Motion detector; Oculomotor system | |
dc.title | Pretectal neurons responding to slow wide-field retinal motion: Could they compensate for slow drift during fixation | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.description.refereed | Yes | |
local.identifier.citationvolume | 29 | |
dc.date.issued | 2001 | |
local.identifier.absfor | 110906 - Sensory Systems | |
local.identifier.ariespublication | MigratedxPub26064 | |
local.type.status | Published Version | |
local.contributor.affiliation | Price, N, College of Medicine, Biology and Environment, ANU | |
local.contributor.affiliation | Ibbotson, Michael, College of Medicine, Biology and Environment, ANU | |
local.bibliographicCitation.startpage | 201 | |
local.bibliographicCitation.lastpage | 205 | |
local.identifier.doi | 10.1046/j.1442-9071.2001.00404.x | |
dc.date.updated | 2015-12-12T09:46:36Z | |
local.identifier.scopusID | 2-s2.0-0034929456 | |
Collections | ANU Research Publications |
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