TY  - JOUR
AU  - Damjanović, Ilija
AU  - Maximov, Pavel V.
AU  - Aliper, Alexey T.
AU  - Zaichikova, Alisa A.
AU  - Gačić, Zoran
AU  - Maximova, Elena M.
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1241
AB  - Responses of direction selective (DS) units of retinal and tectal origin were recorded extracellularly from the tectum opticum (TO) of immobilized fish. The data were collected from three cyprinid species - goldfish, carp and roach. Responses of the retinal DS ganglion cells (GCs) were recorded from their axon terminals in the superficial layers of TO. According to their preferred directions DS GCs, characterized by small receptive fields (3 8), can be divided in three distinct groups, each group containing ON and OFF subtypes approximately in equal quantity. Conversely, direction-selective tectal neurons (DS TNs), recorded at two different tectal levels deeper than the zone of retinal DS afferents, are characterized by large receptive fields (up to 60) and are indifferent to any sign of contrast i.e. can be considered as ON-OFF type units. Fish DS TNs unlike the retinal DS GCs, select four preferred directions. Three types of tectal DS units prefer practically the same directions as those already selected on the retinal level caudo-rostral, dorso-ventral and ventro-dorsal. The fact that three preferred directions of DS GCs and DS TNs coincide allows us to assume that three types of DS GCs are input neurons for corresponding types of DS TNs. The fourth group of DS TNs has the emergent rostro-caudal preference not explicitly present in any of the DS GC inputs. These units are recorded in deep TO layers exclusively. Receptive fields of these DS neurons could be entirely formed on the tectal level. Possible interrelations between retinal and tectal DS units are discussed.
PB  - Elsevier Science Bv, Amsterdam
T2  - Brain Research
T1  - Putative targets of direction-selective retinal ganglion cells in the tectum opticum of cyprinid fish
EP  - 26
SP  - 20
VL  - 1708
DO  - 10.1016/j.brainres.2018.12.006
ER  - 

@article{
author = "Damjanović, Ilija and Maximov, Pavel V. and Aliper, Alexey T. and Zaichikova, Alisa A. and Gačić, Zoran and Maximova, Elena M.",
year = "2019",
abstract = "Responses of direction selective (DS) units of retinal and tectal origin were recorded extracellularly from the tectum opticum (TO) of immobilized fish. The data were collected from three cyprinid species - goldfish, carp and roach. Responses of the retinal DS ganglion cells (GCs) were recorded from their axon terminals in the superficial layers of TO. According to their preferred directions DS GCs, characterized by small receptive fields (3 8), can be divided in three distinct groups, each group containing ON and OFF subtypes approximately in equal quantity. Conversely, direction-selective tectal neurons (DS TNs), recorded at two different tectal levels deeper than the zone of retinal DS afferents, are characterized by large receptive fields (up to 60) and are indifferent to any sign of contrast i.e. can be considered as ON-OFF type units. Fish DS TNs unlike the retinal DS GCs, select four preferred directions. Three types of tectal DS units prefer practically the same directions as those already selected on the retinal level caudo-rostral, dorso-ventral and ventro-dorsal. The fact that three preferred directions of DS GCs and DS TNs coincide allows us to assume that three types of DS GCs are input neurons for corresponding types of DS TNs. The fourth group of DS TNs has the emergent rostro-caudal preference not explicitly present in any of the DS GC inputs. These units are recorded in deep TO layers exclusively. Receptive fields of these DS neurons could be entirely formed on the tectal level. Possible interrelations between retinal and tectal DS units are discussed.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Brain Research",
title = "Putative targets of direction-selective retinal ganglion cells in the tectum opticum of cyprinid fish",
pages = "26-20",
volume = "1708",
doi = "10.1016/j.brainres.2018.12.006"
}

Damjanović, I., Maximov, P. V., Aliper, A. T., Zaichikova, A. A., Gačić, Z.,& Maximova, E. M.. (2019). Putative targets of direction-selective retinal ganglion cells in the tectum opticum of cyprinid fish. in Brain Research
Elsevier Science Bv, Amsterdam., 1708, 20-26.
https://doi.org/10.1016/j.brainres.2018.12.006

Damjanović I, Maximov PV, Aliper AT, Zaichikova AA, Gačić Z, Maximova EM. Putative targets of direction-selective retinal ganglion cells in the tectum opticum of cyprinid fish. in Brain Research. 2019;1708:20-26.
doi:10.1016/j.brainres.2018.12.006 .

Damjanović, Ilija, Maximov, Pavel V., Aliper, Alexey T., Zaichikova, Alisa A., Gačić, Zoran, Maximova, Elena M., "Putative targets of direction-selective retinal ganglion cells in the tectum opticum of cyprinid fish" in Brain Research, 1708 (2019):20-26,
https://doi.org/10.1016/j.brainres.2018.12.006 . .

TY  - JOUR
AU  - Aliper, Alexey T.
AU  - Zaichikova, Alisa A.
AU  - Damjanović, Ilija
AU  - Maximov, Paul V.
AU  - Kasparson, Anna A.
AU  - Gačić, Zoran
AU  - Maximova, Elena M.
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1239
AB  - Single-unit responses of retinal ganglion cells (GCs) were recorded extracellularly from their axonal terminals in the tectum opticum (TO) of the intact fish (goldfish, carp). The depths of retinal units consecutively recorded along the track of the microelectrode were measured. At the depth of around 50m, the responses of six types of direction-selective (DS) GCs were regularly recorded. Responses of two types of orientation-selective (OS) GCs and detectors of white and black spots occurred approximately 50m deeper. Responses of GCs with dark- and light-sustained activity were recorded deeper than all others, at about 200m. The receptive fields of consecutively recorded units overlap, so they analyze the same fragment of the visual scene, focused by eye optic on the photoreceptor raster. The responses of pairs of DS GCs (ON and OFF units that preferred same direction of stimulus movement) and OS GCs (detectors of vertical and horizontal lines) were often simultaneously recorded at one position of the microelectrode. (The paired recordings of certain units amounted about fourth part of all recordings.) This suggests that their axonal arborizations are located close to each other in the tectal retinorecipient layer. Electrophysiological method, thus, allows to indirectly clarify and make precise the morphology of the retino-tectal connections and to establish a morpho-physiological correspondence.
PB  - Springer, Dordrecht
T2  - Fish Physiology and Biochemistry
T1  - Updated functional segregation of retinal ganglion cell projections in the tectum of a cyprinid fishfurther elaboration based on microelectrode recordings
EP  - 792
IS  - 2
SP  - 773
VL  - 45
DO  - 10.1007/s10695-018-0603-0
ER  - 

@article{
author = "Aliper, Alexey T. and Zaichikova, Alisa A. and Damjanović, Ilija and Maximov, Paul V. and Kasparson, Anna A. and Gačić, Zoran and Maximova, Elena M.",
year = "2019",
abstract = "Single-unit responses of retinal ganglion cells (GCs) were recorded extracellularly from their axonal terminals in the tectum opticum (TO) of the intact fish (goldfish, carp). The depths of retinal units consecutively recorded along the track of the microelectrode were measured. At the depth of around 50m, the responses of six types of direction-selective (DS) GCs were regularly recorded. Responses of two types of orientation-selective (OS) GCs and detectors of white and black spots occurred approximately 50m deeper. Responses of GCs with dark- and light-sustained activity were recorded deeper than all others, at about 200m. The receptive fields of consecutively recorded units overlap, so they analyze the same fragment of the visual scene, focused by eye optic on the photoreceptor raster. The responses of pairs of DS GCs (ON and OFF units that preferred same direction of stimulus movement) and OS GCs (detectors of vertical and horizontal lines) were often simultaneously recorded at one position of the microelectrode. (The paired recordings of certain units amounted about fourth part of all recordings.) This suggests that their axonal arborizations are located close to each other in the tectal retinorecipient layer. Electrophysiological method, thus, allows to indirectly clarify and make precise the morphology of the retino-tectal connections and to establish a morpho-physiological correspondence.",
publisher = "Springer, Dordrecht",
journal = "Fish Physiology and Biochemistry",
title = "Updated functional segregation of retinal ganglion cell projections in the tectum of a cyprinid fishfurther elaboration based on microelectrode recordings",
pages = "792-773",
number = "2",
volume = "45",
doi = "10.1007/s10695-018-0603-0"
}

Aliper, A. T., Zaichikova, A. A., Damjanović, I., Maximov, P. V., Kasparson, A. A., Gačić, Z.,& Maximova, E. M.. (2019). Updated functional segregation of retinal ganglion cell projections in the tectum of a cyprinid fishfurther elaboration based on microelectrode recordings. in Fish Physiology and Biochemistry
Springer, Dordrecht., 45(2), 773-792.
https://doi.org/10.1007/s10695-018-0603-0

Aliper AT, Zaichikova AA, Damjanović I, Maximov PV, Kasparson AA, Gačić Z, Maximova EM. Updated functional segregation of retinal ganglion cell projections in the tectum of a cyprinid fishfurther elaboration based on microelectrode recordings. in Fish Physiology and Biochemistry. 2019;45(2):773-792.
doi:10.1007/s10695-018-0603-0 .

Aliper, Alexey T., Zaichikova, Alisa A., Damjanović, Ilija, Maximov, Paul V., Kasparson, Anna A., Gačić, Zoran, Maximova, Elena M., "Updated functional segregation of retinal ganglion cell projections in the tectum of a cyprinid fishfurther elaboration based on microelectrode recordings" in Fish Physiology and Biochemistry, 45, no. 2 (2019):773-792,
https://doi.org/10.1007/s10695-018-0603-0 . .