title: Habituation of horizontal nystagmus of the eyes in pigeons in conditions of alternating central and eccentric rotations.
abstract: Intact pigeons (n=19) were rotated in the dark in the horizontal plane in different orientations relative to the axis of rotation. In central (evoking habituation) rotations, the animal's head was located on the axis of rotation; in eccentric rotations, the animal's head was 0.6 m from the axis of rotation. Pigeons were subjected to series of alternating central and eccentric rotations; rotation directions were also alternated. Series consisted of 2-5 rotation using a trapezoidal program. Each stimulus evoking habituation was used no more than 14 times during the experiment. Eccentric rotations were found not to prevent the gradual decrease in the peak rates of the slow components of primary nystagmus occurring on the transition from one series of central rotations to another in 17 individuals (group 1); these were increased in two individuals (group 2). Group 1 showed direct relationships between changes in this measure of primary nystagmus, changes in the duration of nystagmus, and changes in the peak rates of secondary nystagmus. Modifications of nystagmus within series varied. When two identical stimuli did not follow immediately one after the other, the second stimulus induced the same changes in nystagmus as observed in the individual in the first and next series of central rotations. If two identical stimuli followed one immediately after the other, the second stimulus in the pair often induced increases in the peak rates of primary and secondary nystagmus, along with increases in the time taken to reach the peak rate of primary nystagmus. These changes were non-random at a probability of >95%.
authors.affiliation: I. P. Pavlov Institute of Physiology, Russian Academy of Sciences, 6 Makarov Bank, 199034 St. Petersburg, Russia.
authors.forename: Yu K
authors.initials: YK
authors.lastname: Stolbkov
authors.forename: I V
authors.initials: IV
authors.lastname: Orlov
mesh_terms: D000818:Animals; D010856:Columbidae / Q000502:physiology*; D004585:Electrooculography / Q000379:methods; D007839:Functional Laterality / Q000502:physiology; D006185:Habituation, Psychophysiologic / Q000502:physiology*; D017711:Nonlinear Dynamics; D009760:Nystagmus, Physiologic / Q000502:physiology*; D010775:Photic Stimulation / Q000379:methods; D012027:Reflex, Vestibulo-Ocular / Q000502:physiology*; D012399:Rotation
references.citation: Acta Otolaryngol. 1966 Oct-Nov;62(4):341-50
references.pmid: 5297306
references.citation: J Appl Physiol. 1964 Sep;19:1005-15
references.pmid: 14207719
references.citation: J Comp Physiol Psychol. 1967 Oct;64(2):308-12
references.pmid: 5299007
references.citation: Exp Brain Res. 1992;90(3):526-38
references.pmid: 1426111
references.citation: Neural Netw. 2001 Jan;14(1):1-22
references.pmid: 11213208
references.citation: Fiziol Zh SSSR Im I M Sechenova. 1976 Sep;62(9):1317-24
references.pmid: 1010101
references.citation: Exp Brain Res. 1983;50(1):9-33
references.pmid: 6357831
references.citation: Laryngoscope. 1967 Sep;77(9):1579-619
references.pmid: 5298960
references.citation: J Comput Neurosci. 1999 Jul-Aug;7(1):55-70
references.pmid: 10482002
references.citation: Exp Brain Res. 1997 Aug;116(1):73-82
references.pmid: 9305816
references.citation: Aviat Space Environ Med. 1987 Sep;58(9 Pt 2):A175-9
references.pmid: 3675487
references.citation: J Vestib Res. 2000;10(1):17-23
references.pmid: 10798830
references.citation: Acta Otolaryngol. 1992;112(4):589-94
references.pmid: 1442002
references.citation: Exp Brain Res. 1985;59(1):10-5
references.pmid: 3874786
references.citation: Acta Otolaryngol. 1964 Nov;58:441-8
references.pmid: 14230659
references.citation: Exp Brain Res. 2002 Jan;142(2):259-67
references.pmid: 11807579
references.citation: J Comp Physiol Psychol. 1969 Feb;67(2):156-9
references.pmid: 5785604
references.citation: J Appl Physiol. 1962 Jul;17:709-11
references.pmid: 14007492
references.citation: Acta Otolaryngol. 1970 Apr;69(4):257-65
references.pmid: 5445958
references.citation: Acta Otolaryngol. 1970 Aug;70(2):126-35
references.pmid: 5472105
references.citation: J Neurosci. 1983 Jun;3(6):1234-44
references.pmid: 6602209