Abstract:
:The nucleus of the basal optic root (nBOR) is involved in the generation of the optokinetic response. Previous studies showed that most nBOR neurons exhibit direction-selectivity in response to largefield motion. We investigated the responses of pigeon nBOR neurons to drifting sine wave gratings of varying spatial and temporal frequency (SF,TF). Two groups of neurons were revealed. The first group preferred gratings of low SF (mean, 0.07 cycles per degree (cpd)) and high TF (mean, 0.76 Hz) ('fast' stimuli). The second group preferred gratings of high SF (mean, 0.56 cpd) and lower TF (mean, 0.33 Hz) ('slow' stimuli). Previous studies have demonstrated fast and slow neurons in pretectal nucleus lentiformis mesencephali, which is also involved in the generation of the optokinetic response.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Crowder NA,W Wylie DRdoi
10.1016/s0304-3940(01)01734-7keywords:
subject
Has Abstractpub_date
2001-05-25 00:00:00pages
133-6issue
3eissn
0304-3940issn
1872-7972pii
S0304394001017347journal_volume
304pub_type
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