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Titolo:
BEHAVIOR OF LUMINANCE NEURONS IN THE PRETECTAL OLIVARY NUCLEUS DURINGTHE PUPILLARY NEAR RESPONSE
Autore:
ZHANG HY; CLARKE RJ; GAMLIN PDR;
Indirizzi:
UNIV ALABAMA,VIS SCI RES CTR,626 WORRELL BLDG BIRMINGHAM AL 35294 UNIV ALABAMA,VIS SCI RES CTR BIRMINGHAM AL 35294
Titolo Testata:
Experimental Brain Research
fascicolo: 1, volume: 112, anno: 1996,
pagine: 158 - 162
SICI:
0014-4819(1996)112:1<158:BOLNIT>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
INNATE MICROSTRABISMIC CATS; LIGHT REFLEX; PRAETECTALIS OLIVARIS; OCULAR ACCOMMODATION; RHESUS-MONKEY; CORTEX; RAT; DETECTORS; PATHWAYS; FIELD;
Keywords:
PRETECTUM; VERGENCE; ACCOMMODATION; ELECTROPHYSIOLOGY; MONKEY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
H.Y. Zhang et al., "BEHAVIOR OF LUMINANCE NEURONS IN THE PRETECTAL OLIVARY NUCLEUS DURINGTHE PUPILLARY NEAR RESPONSE", Experimental Brain Research, 112(1), 1996, pp. 158-162

Abstract

In oats and monkeys, extrastriate visual areas thai have been reported to be involved in the near triad of pupilloconstriction, convergence, and accommodation have well-defined projections to the pretectal olivary nucleus (PON), the retinorecipient prerectal nucleus mediating the pupillary light reflex in mammals. We have therefore used alert, behaving primates to investigate the possibility that PON neurons are involved in the pupillary near response in addition to the pupillary light rifler, Single-unit recording revealed that PON luminance neurons significantly increased their firing rate with increases in retinal illumination and the resultant pupilloconstriction, In contrast, their activity did not significantly increase during pupilloconstriction elicited by near viewing. Thus tile behavior of PON luminance neurons is appropriate for their participation in the pupillary light reflex, but isinappropriate for any proposed role in the pupillary near response. This result strongly suggests that neurons in the primate PON are solely related to the pupillary light reflex and that the cortical projections to this pretectal nucleus are related to this reflex and do not play a role in the pupillary near response.

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Documento generato il 28/03/20 alle ore 09:49:00