Feature-based attention in primate visual cortex

Schwedhelm, Philipp

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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Das Dokument erscheint in:

GGNB - Göttinger Graduiertenzentrum für Neurowissenschaften, Biophysik und molekulare Biowissenschaften [1111]
GGNB - Göttingen Graduate Center for Neurosciences, Biophysics and Molecular Biosciences

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