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Cortical inputs to the middle temporal visual area in New World owl monkeys

Cerkevich, CM and Collins, CE and Kaas, JH (2015) Cortical inputs to the middle temporal visual area in New World owl monkeys. Eye and Brain, 7. 1 - 15. ISSN 1179-2744

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We made eight retrograde tracer injections into the middle temporal visual area (MT) of three New World owl monkeys (Aotus nancymaae). These injections were placed across the representation of the retina in MT to allow us to compare the locations of labeled cells in other areas in order to provide evidence for any retinotopic organization in those areas. Four regions projected to MT: 1) early visual areas, including V1, V2, V3, the dorsolateral visual area, and the dorsomedial visual area, provided topographically organized inputs to MT; 2) all areas in the MT complex (the middle temporal crescent, the middle superior temporal area, and the fundal areas of the superior temporal sulcus) projected to MT. Somewhat variably across injections, neurons were labeled in other parts of the temporal lobe; 3) regions in the location of the medial visual area, the posterior parietal cortex, and the lateral sulcus provided other inputs to MT; 4) finally, projections from the frontal eye field, frontal visual field, and prefrontal cortex were also labeled by our injections. These results further establish the sources of input to MT, and provide direct evidence within and across cases for retinotopic patterns of projections from early visual areas to MT.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Cerkevich, CMCERKEC@pitt.eduCERKEC
Collins, CE
Kaas, JH
Centers: Other Centers, Institutes, Offices, or Units > Systems Neuroscience Institute
Date: 1 January 2015
Date Type: Publication
Journal or Publication Title: Eye and Brain
Volume: 7
Page Range: 1 - 15
DOI or Unique Handle: 10.2147/eb.s69713
Refereed: Yes
ISSN: 1179-2744
Date Deposited: 24 Jun 2015 19:29
Last Modified: 27 Mar 2021 10:55


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