Connections of the anterior ectosylvian visual area (AEV) |
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Authors: | M Norita L Mucke G Benedek B Albowitz Y Katoh O D Creutzfeldt |
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Institution: | (1) Department of Neurobiology, Max-Planck-Institute for Biophysical Chemistry, D-3400 Göttingen, Federal Republic of Germany;(2) Department of Anatomy, School of Medicine, Fujita-Gakuen Health University, 470-11 Toyoake, Japan;(3) Department of Neurology, Massachusetts General Hospital, 02114 Boston, MA, USA;(4) Department of Physiology, University Medical School, Szeged, Hungary;(5) Department of Physiology, Cornell University, 14853-6401 Ithaca, NY, USA |
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Abstract: | Summary We have previously described a visual area situated in the cortex surrounding the deep infolding of the anterior ectosylvian sulcus of the cat (Mucke et al. 1982). Using orthograde and retrograde transport methods we now report anatomical evidence that this anterior ectosylvian visual area (AEV) is connected with a substantial number of both cortical and subcortical regions. The connections between AEV and other cortical areas are reciprocal and, at least in part, topographically organized: the rostral AEV is connected with the bottom region of the presylvian sulcus, the lower bank of the cruciate sulcus, the rostral part of the ventral bank of the splenial sulcus, the rostral portion of the lateral suprasylvian visual area (LS) and the lateral bank of the posterior rhinal sulcus; the caudal AEV is connected with the bottom region of the presylvian sulcus, the caudal part of LS, the ventral part of area 20 and the lateral bank of the posterior rhinal sulcus. Subcortically, AEV has reciprocal connections with the ventral medial thalamic nucleus (VM), with the medial part of the lateralis posterior nucleus (LPm), as well as with the lateralis medialis-suprageniculate nuclear (LM-Sg) complex. These connections are also topographically organized with more rostral parts of AEV being related to more ventral portions of the LPm and LM-Sg complex. AEV also projects to the caudate nucleus, the putamen, the lateral amygdaloid nucleus, the superior colliculus, and the pontine nuclei. It is concluded that AEV is a visual association area which functionally relates the visual with both the motor and the limbic system and that it might play a role in the animal's orienting and alerting behavior.Abbreviations Ac
aqueductus cerebri
- AEs
anterior ectosylvian sulcus
- ALLS
anterolateral lateral suprasylvian area
- AMLS
anteromedial lateral suprasylvian area
- ASs
anterior suprasylvian sulcus
- Cd
caudate nucleus
- CL
central lateral nucleus
- Cl
claustrum
- Cos
coronal sulcus
- Crs
cruciate sulcus
- DLS
dorsal lateral suprasylvian area
- GI
stratum griseum intermediale
- GP
stratum griseum profundum
- IC
inferior colliculus
- LAm
lateral amygdaloid nucleus
- LGNd
dorsal nucleus of lateral geniculate body
- LGNv
ventral nucleus of lateral geniculate body
- Llc
nucleus lateralis intermedius, pars caudalis
- LM
nucleus lateralis medialis
- LPl
nucleus lateralis posterior, pars lateralis
- LPm
nucleus lateralis posterior, pars medialis
- Ls
lateral sulcus
- MD
nucleus mediodorsalis
- MG
medial geniculate body
- MSs
middle suprasylvian sulcus
- Ndl
nucleus dorsolateralis pontis
- Nl
nucleus lateralis pontis
- Np
nucleus peduncularis pontis
- Npm
nucleus paramedianus pontis
- Nrt
nucleus reticularis tegmenti pontis
- Nv
nucleus ventralis pontis
- Ped
cerebral peduncle
- PEs
posterior ectosylvian sulcus
- Pg
periaqueductal gray
- PLLS
posterolateral lateral suprasylvian area
- PMLS
posteromedial lateral suprasylvian area
- PSs
presylvian sulcus
- Pul
pulvinar
- Put
putamen
- R
red nucleus
- Sg
suprageniculate nucleus
- SN
substantia nigra
- Sps
splenial sulcus
- Syls
sylvian sulcus
- T
trapezoid body
- VA
ventral anterior nucleus
- VL
ventral lateral nucleus
- VLS
ventral lateral suprasylvian area
- VM
ventral medial nucleus
- VPL
ventral posterolateral nucleus
- VPM
ventral posteromedial nucleus
Sponsored by Max-Planck-Society during part of the studySponsored by Thyssen FoundationSponsored by Alexander von Humboldt-Foundation |
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Keywords: | Visual system Anterior ectosylvian sulcus Association cortex Afferent Efferent |
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