Binocular visual integration in the crustacean nervous system

Although the behavioral repertoire of crustaceans is largely guided by visual information their visual nervous system has been little explored. In search for central mechanisms of visual integration, this study was aimed at identifying and characterizing brain neurons in the crab involved in binocul...

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Autores principales:	Sztarker, J., Tomsic, D.
Formato:	JOUR
Materias:	Binocular neurons Chasmagnathus Crustacea In vivo intracellular recordings Motion detection action potential animal article binocular vision brain male methodology movement perception optic lobe photostimulation physiology sensory nerve cell Action Potentials Animals Brain Male Motion Perception Neurons, Afferent Optic Lobe Photic Stimulation Vision, Binocular
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_03407594_v190_n11_p951_Sztarker
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_03407594_v190_n11_p951_Sztarker
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spelling	todo:paper_03407594_v190_n11_p951_Sztarker2023-10-03T15:26:01Z Binocular visual integration in the crustacean nervous system Sztarker, J. Tomsic, D. Binocular neurons Chasmagnathus Crustacea In vivo intracellular recordings Motion detection action potential animal article binocular vision brain Crustacea male methodology movement perception optic lobe photostimulation physiology sensory nerve cell Action Potentials Animals Brain Crustacea Male Motion Perception Neurons, Afferent Optic Lobe Photic Stimulation Vision, Binocular Although the behavioral repertoire of crustaceans is largely guided by visual information their visual nervous system has been little explored. In search for central mechanisms of visual integration, this study was aimed at identifying and characterizing brain neurons in the crab involved in binocular visual processing. The study was performed in the intact animal, by recording intracellularly the response to visual stimuli of neurons from one of the two optic lobes. Identified neurons recorded from the medulla (second optic neuropil), which include sustaining neurons, dimming neurons, depolarizing and hyperpolarizing tonic neurons and on-off neurons, all presented exclusively monocular (ipsilateral) responses. In contrast, all wide field movement detector neurons recorded from the lobula (third optic neuropil) responded to moving stimuli presented to the ipsilateral and to the contralateral eye. In these cells, the responses evoked by ipsilateral or contralateral stimulation were almost identical, as revealed by analysing the number and amplitude of the elicited postsynaptic potentials and spikes, and the ability to habituate upon repeated visual stimulation. The results demonstrate that in crustaceans important binocular processing takes place at the level of the lobula. © Springer-Verlag 2004. Fil:Sztarker, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tomsic, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03407594_v190_n11_p951_Sztarker
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Binocular neurons Chasmagnathus Crustacea In vivo intracellular recordings Motion detection action potential animal article binocular vision brain Crustacea male methodology movement perception optic lobe photostimulation physiology sensory nerve cell Action Potentials Animals Brain Crustacea Male Motion Perception Neurons, Afferent Optic Lobe Photic Stimulation Vision, Binocular
spellingShingle	Binocular neurons Chasmagnathus Crustacea In vivo intracellular recordings Motion detection action potential animal article binocular vision brain Crustacea male methodology movement perception optic lobe photostimulation physiology sensory nerve cell Action Potentials Animals Brain Crustacea Male Motion Perception Neurons, Afferent Optic Lobe Photic Stimulation Vision, Binocular Sztarker, J. Tomsic, D. Binocular visual integration in the crustacean nervous system
topic_facet	Binocular neurons Chasmagnathus Crustacea In vivo intracellular recordings Motion detection action potential animal article binocular vision brain Crustacea male methodology movement perception optic lobe photostimulation physiology sensory nerve cell Action Potentials Animals Brain Crustacea Male Motion Perception Neurons, Afferent Optic Lobe Photic Stimulation Vision, Binocular
description	Although the behavioral repertoire of crustaceans is largely guided by visual information their visual nervous system has been little explored. In search for central mechanisms of visual integration, this study was aimed at identifying and characterizing brain neurons in the crab involved in binocular visual processing. The study was performed in the intact animal, by recording intracellularly the response to visual stimuli of neurons from one of the two optic lobes. Identified neurons recorded from the medulla (second optic neuropil), which include sustaining neurons, dimming neurons, depolarizing and hyperpolarizing tonic neurons and on-off neurons, all presented exclusively monocular (ipsilateral) responses. In contrast, all wide field movement detector neurons recorded from the lobula (third optic neuropil) responded to moving stimuli presented to the ipsilateral and to the contralateral eye. In these cells, the responses evoked by ipsilateral or contralateral stimulation were almost identical, as revealed by analysing the number and amplitude of the elicited postsynaptic potentials and spikes, and the ability to habituate upon repeated visual stimulation. The results demonstrate that in crustaceans important binocular processing takes place at the level of the lobula. © Springer-Verlag 2004.
format	JOUR
author	Sztarker, J. Tomsic, D.
author_facet	Sztarker, J. Tomsic, D.
author_sort	Sztarker, J.
title	Binocular visual integration in the crustacean nervous system
title_short	Binocular visual integration in the crustacean nervous system
title_full	Binocular visual integration in the crustacean nervous system
title_fullStr	Binocular visual integration in the crustacean nervous system
title_full_unstemmed	Binocular visual integration in the crustacean nervous system
title_sort	binocular visual integration in the crustacean nervous system
url	http://hdl.handle.net/20.500.12110/paper_03407594_v190_n11_p951_Sztarker
work_keys_str_mv	AT sztarkerj binocularvisualintegrationinthecrustaceannervoussystem AT tomsicd binocularvisualintegrationinthecrustaceannervoussystem
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Binocular visual integration in the crustacean nervous system

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