Feature-based attention in primate visual cortex
Mechanisms and limitations of color- and motionselection as assessed by neurophysiology, psychophysics and computational modeling
dc.contributor.advisor | Treue, Stefan Prof. Dr. | |
dc.contributor.author | Schwedhelm, Philipp | |
dc.date.accessioned | 2016-07-06T08:51:27Z | |
dc.date.available | 2016-07-06T08:51:27Z | |
dc.date.issued | 2016-07-06 | |
dc.identifier.uri | http://hdl.handle.net/11858/00-1735-0000-0028-87AC-1 | |
dc.identifier.uri | http://dx.doi.org/10.53846/goediss-5732 | |
dc.language.iso | deu | de |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.subject.ddc | 570 | de |
dc.title | Feature-based attention in primate visual cortex | de |
dc.title.alternative | Mechanisms and limitations of color- and motionselection as assessed by neurophysiology, psychophysics and computational modeling | |
dc.type | doctoralThesis | de |
dc.title.translated | Feature-based attention in primate visual cortex | de |
dc.contributor.referee | Scherberger, Hansjörg Prof. Dr. | |
dc.date.examination | 2015-09-09 | |
dc.description.abstracteng | The scope of this thesis, after a brief summary of the core ideas of top-down attentional control is given (Chapter 2.1), is to shed some light on the cortical control circuit underlying the deployment of feature-based attention. A first study (Chapter 2.2) deduces from human psychophysical performance how an attentional signal acts on a local sensory population of motion-selective neurons. A second empirical study (Chapter 2.3) attempts to identify and characterize resource limitations for the deployment of feature-based attention in macaque monkeys. In particular, the aim of the study was to compare neuronal modulations of motion-selective neurons in three different cases of feature-based modulation. In summary, this work provides novel insights into the properties of the feature-based attention system of monkeys and humans. I describe a stimulus-independent influence of attention on neuronal normalization and a potential resource limitation of feature-based attentional deployment. Both results will guide further research aiming at characterizing the brain networks subserving the deployment of top-down feature-based attention. | de |
dc.contributor.coReferee | Wilke, Melanie Prof. Dr. | |
dc.subject.eng | attention | de |
dc.subject.eng | features | de |
dc.subject.eng | motion | de |
dc.subject.eng | area MT | de |
dc.subject.eng | macaque | de |
dc.identifier.urn | urn:nbn:de:gbv:7-11858/00-1735-0000-0028-87AC-1-3 | |
dc.affiliation.institute | Göttinger Graduiertenschule für Neurowissenschaften, Biophysik und molekulare Biowissenschaften (GGNB) | de |
dc.subject.gokfull | Biologie (PPN619462639) | de |
dc.identifier.ppn | 862727219 |
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GGNB - Göttinger Graduiertenzentrum für Neurowissenschaften, Biophysik und molekulare Biowissenschaften [1116]
GGNB - Göttingen Graduate Center for Neurosciences, Biophysics and Molecular Biosciences