Lagged cells in alert monkey lateral geniculate nucleus.
Five lagged cells were recognized by extracellular recording in the lateral geniculate nucleus of an awake, behaving macaque monkey. Previous reports of lagged cells were all in the anesthetized cat. Both parvocellular and magnocellular lagged cells were observed. Response timing was distributed continuously across the population, and both sustained and transient responses were seen in the magnocellular subpopulation. Cortex thus receives signals with a wide range of timing, which can mediate direction selectivity across multiple dimensions.
Saul
Alan B
AB
Department of Ophthalmology, Medical College of Georgia, Augusta, Georgia 30912, USA. asaul@mcg.edu
D000465:Algorithms; D000818:Animals; D003627:Data Interpretation, Statistical; D004567:Electrodes, Implanted; D004594:Electrophysiology; D005403:Fixation, Ocular; D007839:Functional Laterality / Q000502:physiology; D005829:Geniculate Bodies / Q000166:cytology* / Q000502:physiology*; D020439:Growth Cones / Q000502:physiology; D007091:Image Processing, Computer-Assisted; D008253:Macaca mulatta; D009434:Neural Pathways / Q000166:cytology / Q000502:physiology; D009474:Neurons / Q000502:physiology*; D010775:Photic Stimulation; D013788:Thalamus / Q000166:cytology / Q000502:physiology; D014794:Visual Fields; D014795:Visual Pathways / Q000166:cytology / Q000502:physiology