Functional organization of telencephalic visual association fields in pigeons

Behavioural Brain Research
Martin StachoOnur Güntürkün

Abstract

Birds show remarkable visual abilities that surpass most of our visual psychophysiological abilities. In this study, we investigated visual associative areas of the tectofugal visual system in pigeons. Similar to the condition in mammals, ascending visual pathways in birds are subdivided into parallel form/color vs. motion streams at the thalamic and primary telencephalic level. However, we know practically nothing about the functional organization of those telencephalic areas that receive input from the primary visual telencephalic fields. The current study therefore had two objectives: first, to reveal whether these visual associative areas of the tectofugal system are activated during visual discrimination tasks; second, to test whether separated form/color vs. motion pathways can be discerned among these association fields. To this end, we trained pigeons to discriminate either form/color or motion stimuli and used the immediate early gene protein ZENK to capture the activity of the visual associative areas during the task. We could indeed identify several visual associative telencephalic structures by activity pattern changes during discriminations. However, none of these areas displayed a difference between form/color vs....Continue Reading

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Citations

Sep 18, 2016·Proceedings of the National Academy of Sciences of the United States of America·Damian ScarfMichael Colombo
Mar 14, 2018·Learning & Behavior·Onur GüntürkünRoland Pusch
Apr 3, 2020·Physiological Reviews·Onur GüntürkünSebastian Ocklenburg
Mar 16, 2019·Frontiers in Physiology·William James ClarkMichael Colombo
Sep 20, 2020·Nature Communications·Mehdi BehrooziOnur Güntürkün
Jan 17, 2020·Scientific Reports·Noemi RookChristian Beste
Oct 17, 2017·Brain Structure & Function·Uwe MayerSang Ah Lee

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