Výsledky vyhledávání - "Sebastian Molina-Obando"

Akademický článek

Neural pathways and computations that achieve stable contrast processing tuned to natural scenes

Autor: Burak Gür, Luisa Ramirez, Jacqueline Cornean, Freya Thurn, Sebastian Molina-Obando, Giordano Ramos-Traslosheros, Marion Silies

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-18 (2024)

Abstract Natural scenes are highly dynamic, challenging the reliability of visual processing. Yet, humans and many animals perform accurate visual behaviors, whereas computer vision devices struggle with rapidly changing background luminance. How doe

Externí odkaz: https://doaj.org/article/fb484ad10c83468caef3e8a5b5fa0590

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Akademický článek

Heterogeneity of synaptic connectivity in the fly visual system

Autor: Jacqueline Cornean, Sebastian Molina-Obando, Burak Gür, Annika Bast, Giordano Ramos-Traslosheros, Jonas Chojetzki, Lena Lörsch, Maria Ioannidou, Rachita Taneja, Christopher Schnaitmann, Marion Silies

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-15 (2024)

Abstract Visual systems are homogeneous structures, where repeating columnar units retinotopically cover the visual field. Each of these columns contain many of the same neuron types that are distinguished by anatomic, genetic and – generally – b

Externí odkaz: https://doaj.org/article/f0428a6e413346269ab07a5917e1da6c

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Akademický článek

First-order visual interneurons distribute distinct contrast and luminance information across ON and OFF pathways to achieve stable behavior

Autor: Madhura D Ketkar, Burak Gür, Sebastian Molina-Obando, Maria Ioannidou, Carlotta Martelli, Marion Silies

Publikováno v: eLife, Vol 11 (2022)

The accurate processing of contrast is the basis for all visually guided behaviors. Visual scenes with rapidly changing illumination challenge contrast computation because photoreceptor adaptation is not fast enough to compensate for such changes. Ye

Externí odkaz: https://doaj.org/article/dd351d73b9c344febae591ce3f3b9908

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Akademický článek

ON selectivity in the Drosophila visual system is a multisynaptic process involving both glutamatergic and GABAergic inhibition

Autor: Sebastian Molina-Obando, Juan Felipe Vargas-Fique, Miriam Henning, Burak Gür, T Moritz Schladt, Junaid Akhtar, Thomas K Berger, Marion Silies

Publikováno v: eLife, Vol 8 (2019)

Sensory systems sequentially extract increasingly complex features. ON and OFF pathways, for example, encode increases or decreases of a stimulus from a common input. This ON/OFF pathway split is thought to occur at individual synaptic connections th

Externí odkaz: https://doaj.org/article/5c419e364803452593c4022c7d178cce

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