| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
The Journal of Neurophysiology Vol. 86 No. 5 November 2001, pp. 2621-2624
Copyright ©2001 by the American Physiological Society
RAPID COMMUNICATION
Visual Sciences, Research School of Biological Sciences, Australian National University, Canberra, ACT 2601, Australia
Ibbotson, Michael R. and
Nicholas S. C. Price.
Spatiotemporal Tuning of Directional Neurons in Mammalian and
Avian Pretectum: A Comparison of Physiological Properties. J. Neurophysiol. 86: 2621-2624, 2001. Responses were recorded from 72 neurons in the wallaby's nucleus of
the optic tract (NOT) during stimulation with drifting sinusoidal
gratings at a range of temporal and spatial frequencies (TF and SF).
Most cells (70/72) were TF tuned, but two were velocity tuned. The
neurons are placed into two descriptive groups: fast and slow cells,
which prefer SF/TFs of 0.06-0.6 cpd/0.4-20 Hz and 0.13-1 cpd/<1 Hz,
respectively. The peak spatiotemporal tunings of the neurons are
compared for motion in preferred and anti-preferred directions with
little variation observed in most cases. The spatiotemporal properties
of wallaby NOT are compared with those of pigeon lentiformis mesencephali: the avian homologue of NOT. The neurons in the pigeon and
wallaby nuclei segregate into fast and slow cells that operate in
similar spatiotemporal domains. The fast and slow cells segregate largely on the basis of TF in wallabies and SF in pigeons, but their
respective velocity tuning properties are very similar. In both
species, the mean velocity tuning for fast and slow cells is
approximately 50°/s and 1°/s, respectively.
This article has been cited by other articles:
|
|
 |
|
  Y.-Q. Niu, Q. Xiao, R.-F. Liu, L.-Q. Wu, and S.-R. Wang Response characteristics of the pigeon's pretectal neurons to illusory contours and motion J. Physiol., December 15, 2006; 577(3): 805 - 813. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 I. R. Winship, N. A. Crowder, and D. R.W. Wylie Quantitative Reassessment of Speed Tuning in the Accessory Optic System and Pretectum of Pigeons J Neurophysiol, January 1, 2006; 95(1): 546 - 551. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. R. Ibbotson Contrast and Temporal Frequency-Related Adaptation in the Pretectal Nucleus of the Optic Tract J Neurophysiol, July 1, 2005; 94(1): 136 - 146. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
I. R. Winship, P. L. Hurd, and D. R. W. Wylie Spatiotemporal Tuning of Optic Flow Inputs to the Vestibulocerebellum in Pigeons: Differences Between Mossy and Climbing Fiber Pathways J Neurophysiol, March 1, 2005; 93(3): 1266 - 1277. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. Cao, Y. Gu, and S.-R. Wang Visual Neurons in the Pigeon Brain Encode the Acceleration of Stimulus Motion J. Neurosci., September 1, 2004; 24(35): 7690 - 7698. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. A. Crowder, C. T. Dickson, and D. R.W. Wylie Telencephalic Input to the Pretectum of Pigeons: An Electrophysiological and Pharmacological Inactivation Study J Neurophysiol, January 1, 2004; 91(1): 274 - 285. [Abstract] [Full Text]
|
|
|
|
|
|
N. A. Crowder, M. R.W. Dawson, and D. R.W. Wylie Temporal Frequency and Velocity-Like Tuning in the Pigeon Accessory Optic System J Neurophysiol, September 1, 2003; 90(3): 1829 - 1841. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. A. Crowder, H. Lehmann, M. B. Parent, and D. R.W. Wylie The Accessory Optic System Contributes to the Spatio-Temporal Tuning of Motion-Sensitive Pretectal Neurons J Neurophysiol, August 1, 2003; 90(2): 1140 - 1151. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. S. C. Price and M. R. Ibbotson Direction-Selective Neurons in the Optokinetic System With Long-Lasting After-Responses J Neurophysiol, November 1, 2002; 88(5): 2224 - 2231. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |
