caa a22 4500 397581521 CHVBK 20180308164908.0 cr unu---uuuuu 161202e199611 xx s 000 0 eng 10.1093/cercor/6.6.807 doi (NATIONALLICENCE)oxford-10.1093/cercor/6.6.807 Comparison of Dendritic Fields of Layer III Pyramidal Neurons in Striate and Extrastriate Visual Areas of the Marmoset: a Lucifer Yellow Intracellular Injection Study [Elektronische Daten] [Guy N. Elston, Marcello G.P. Rosa, Michael B. Calord] Basal dendritic field areas of layer III pyramidal neurons were compared between the first (V1), second (V2), dorsolateral (DL) and fundus of the superior temporal (FST) areas in marmoset monkey visual cortex. These areas correspond to early stages of visual processing (V1, V2) and to areas specialized for the analysis of shape (DL) and motion (FST). Neurons in fixed tangential cortical slices (250 μm) were injected with Lucifer Yellow and immunohistochemically processed for a diaminobenzidine reaction product Dendritic field areas were calculated for layer III pyramidal cells whose complete basal projection was judged to be within the section (n = 189). Borders between different visual areas were established based on cytochrome oxidase immunohistochemistry and myelin patterns in the experimental hemisphere, and electrophysiological recordings in the contralateral hemisphere. Pyramidal neurons in V1 had a mean basal dendritic field area of 1.84 × 104 μm2 (SEM = 2.04 = 2.04 × 103 μm2;n = 21). Layer III pyramidal cells in V2 had a mean basal dendritic field 1.26 times larger (mean = 2.32 × 104 ± 1.78 × 103 n = 42) than that of V1 neurons. The mean dendritic field area of layer III pyramidal cells in DL (n = 76) was 1.5 times larger than that in V1 (mean = 2.75 × 104 ± 1.59 × 103 μm2) and that in FST (n = 50) was 2.3 times larger (mean = 4.26 × 104 ± 2.79 × 103 μm2). Our results show that there is a correlation between tangential dendritic field area of basal dendrites of layer III pyramidal neurons and modality of visual processing. The increase in basal dendritic field area of layer III pyramidal cells may allow more extensive sampling of inputs as required by higher-order processing of visual information. © 1996 Oxford University Press Articles nationallicence Elston Guy N. Vision, Touch and Hearing Research Centre, Department of Physiology and Pharmacology The University of Queensland, Queensland 4072, Australia aut Rosa Marcello G.P. Vision, Touch and Hearing Research Centre, Department of Physiology and Pharmacology The University of Queensland, Queensland 4072, Australia aut Calord Michael B. Vision, Touch and Hearing Research Centre, Department of Physiology and Pharmacology The University of Queensland, Queensland 4072, Australia aut Cerebral Cortex Oxford University Press 6/6(1996-11), 807-813 1047-3211 6:6<807 1996 6 cercor https://doi.org/10.1093/cercor/6.6.807 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/cercor/6.6.807 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Elston Guy N. Vision, Touch and Hearing Research Centre, Department of Physiology and Pharmacology The University of Queensland, Queensland 4072, Australia aut NATIONALLICENCE 700 1- Rosa Marcello G.P. Vision, Touch and Hearing Research Centre, Department of Physiology and Pharmacology The University of Queensland, Queensland 4072, Australia aut NATIONALLICENCE 700 1- Calord Michael B. Vision, Touch and Hearing Research Centre, Department of Physiology and Pharmacology The University of Queensland, Queensland 4072, Australia aut NATIONALLICENCE 773 0- Cerebral Cortex Oxford University Press 6/6(1996-11), 807-813 1047-3211 6:6<807 1996 6 cercor Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford