Treue, Stefan

[["dc.bibliographiccitation.artnumber","5"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Journal of Vision"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Anton-Erxleben, Katharina"],["dc.contributor.author","Henrich, Christian"],["dc.contributor.author","Treue, Stefan"],["dc.date.accessioned","2017-09-07T11:43:36Z"],["dc.date.available","2017-09-07T11:43:36Z"],["dc.date.issued","2007"],["dc.description.abstract","Spatial attention shifts receptive fields in monkey extrastriate visual cortex toward the focus of attention (S. Ben Hamed, J. R. Duhamel, F. Bremmer, & W. Graf, 2002; C. E. Connor, J. L. Gallant, D. C. Preddie, & D. C. Van Essen, 1996; C. E. Connor, D. C. Preddie, J. L. Gallant, & D. C. Van Essen, 1997; T. Womelsdorf, K. Anton-Erxleben, F. Pieper, & S. Treue, 2006). This distortion in the retinotopic distribution of receptive fields might cause distortions in spatial perception such as an increase of the perceived size of attended stimuli. Here we test for such an effect in human subjects by measuring the point of subjective equality (PSE) for the perceived size of a neutral and an attended stimulus when drawing automatic attention to one of two spatial locations. We found a significant increase in perceived size of attended stimuli. Depending on the absolute stimulus size, this effect ranged from 4% to 12% and was more pronounced for smaller than for larger stimuli. In our experimental design, an attentional effect on task difficulty or a cue bias might influence the PSE measure. We performed control experiments and indeed found such effects, but they could only account for part of the observed results. Our findings demonstrate that the allocation of transient spatial attention onto a visual stimulus increases its perceived size and additionally biases subjects to select this stimulus for a perceptual judgment."],["dc.identifier.doi","10.1167/7.11.5"],["dc.identifier.gro","3151587"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/8399"],["dc.language.iso","en"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","1534-7362"],["dc.title","Attention changes perceived size of moving visual patterns"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","421"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Journal of Vision"],["dc.bibliographiccitation.lastpage","421"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Anton-Erxleben, Katharina"],["dc.contributor.author","Westendorff, Stephanie"],["dc.contributor.author","Treue, Stefan"],["dc.contributor.author","Gail, Alexander"],["dc.date.accessioned","2018-02-26T14:23:21Z"],["dc.date.available","2018-02-26T14:23:21Z"],["dc.date.issued","2012"],["dc.description.abstract","Background: Attention improves the visual system’s spatial resolution and distorts the perception of visual space: Perceived locations are repulsed away from the attentional focus (Suzuki & Cavanagh, 1997). However, little is known about whether and how attention affects visual space in action. Methods: Here, we tested the effects of exogenous attention on visually guided reach movements. Attention was drawn involuntarily to a transient, uninformative cue (white square, 72ms) at one of two locations at 11.4º eccentricity and ±45º polar angle in either the upper left or upper right quadrant, respectively. After a brief delay (56ms), a reach target (green circle, 29ms) appeared at a randomly chosen position along an imaginary half-circle within the upper visual field with the same eccentricity as the cue positions. In the ‘attended’ condition, cue and target appeared within the same quadrant, whereas in the ‘unattended’ condition they appeared in opposite hemifields. For each target location, we calculated the distance between reach endpoint and target for the attended and the unattended condition. Results & Conclusions: In the attended condition, reach endpoints toward targets in the vicinity of the attentional cue were repulsed away from the cue by up to ~0.9º, relative to the unattended condition. The spatial profile of the magnitude of this effect follows an ‘M’-shape centered on the focus of attention; i.e., the cue did not affect reaches toward targets at the cued location or far away from it. Reaction times (target onset to movement start) tended to be slower for targets near the cue, whereas movement times (movement start to landing time) at all locations tended to be faster in the attended than in the unattended condition. These results are consistent with an attentional distortion of visual space and suggest a parallelism between the perception and action systems for the representation of location."],["dc.identifier.doi","10.1167/12.9.421"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12628"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Attention distorts reach space"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1156"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Nature Neuroscience"],["dc.bibliographiccitation.lastpage","1160"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Womelsdorf, Thilo"],["dc.contributor.author","Anton-Erxleben, Katharina"],["dc.contributor.author","Pieper, Florian"],["dc.contributor.author","Treue, Stefan"],["dc.date.accessioned","2017-09-07T11:43:30Z"],["dc.date.available","2017-09-07T11:43:30Z"],["dc.date.issued","2006"],["dc.description.abstract","Voluntary attention is the top-down selection process that focuses cortical processing resources on the most relevant sensory information. Spatial attention—that is, selection based on stimulus position—alters neuronal responsiveness throughout primate visual cortex. It has been hypothesized that it also changes receptive field profiles by shifting their centers toward attended locations and by shrinking them around attended stimuli. Here we examined, at high resolution, receptive fields in cortical area MT of rhesus macaque monkeys when their attention was directed to different locations within and outside these receptive fields. We found a shift of receptive fields, even far from the current location of attention, accompanied by a small amount of shrinkage. Thus, already in early extrastriate cortex, receptive fields are not static entities but are highly modifiable, enabling the dynamic allocation of processing resources to attended locations and supporting enhanced perception within the focus of attention by effectively increasing the local cortical magnification."],["dc.identifier.doi","10.1038/nn1748"],["dc.identifier.gro","3151550"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/8359"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","1097-6256"],["dc.title","Dynamic shifts of visual receptive fields in cortical area MT by spatial attention"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","29"],["dc.bibliographiccitation.firstpage","147"],["dc.bibliographiccitation.lastpage","152"],["dc.contributor.author","Fix, Jérémy"],["dc.contributor.author","Schroll, Henning"],["dc.contributor.author","Anton-Erxleben, Katharina"],["dc.contributor.author","Womelsdorf, Thilo"],["dc.contributor.author","Treue, Stefan"],["dc.contributor.author","Hamker, Fred"],["dc.date.accessioned","2017-11-14T10:01:41Z"],["dc.date.available","2017-11-14T10:01:41Z"],["dc.date.issued","2010"],["dc.description.abstract","Spatial attention has been shown to produce non-multiplicative effects on visual receptive fields(vRFs) in monkey area MT, including shift and shrinkage. These non-multiplicative effects have been recently explained by a multiplicative model of attention. However, Womelsdorf et al. introduced a simplification leading to two distinct models, one for unmodulated and another for modulated responses. We provide here a unified account of both the unmodulated and modulated responses within a single model. This model relies on a divisive influence of antipreferred stimuli placed within the receptive fields of the neurons scaled by spatial attention. This model also allows to reproduce the observed influence of spatial attention and provides physiological explanation for the differential shift for the centre and surround of the receptive field."],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/9955"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.conference","Fifth French Conference in Computational Neuroscience: Neurocomp 2010"],["dc.relation.eventend","2010-08-08"],["dc.relation.eventlocation","Lyon, France"],["dc.relation.eventstart","2010-08-06"],["dc.relation.ispartof","Proceeding of the Fifth French Conference in Computational Neuroscience: Neurocomp 2010"],["dc.title","Influence of spatial attention on the receptive field shape of neurons in monkey area MT"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2466"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Cerebral Cortex"],["dc.bibliographiccitation.lastpage","2478"],["dc.bibliographiccitation.volume","19"],["dc.contributor.author","Anton-Erxleben, Katharina"],["dc.contributor.author","Stephan, Valeska M."],["dc.contributor.author","Treue, Stefan"],["dc.date.accessioned","2017-09-07T11:43:31Z"],["dc.date.available","2017-09-07T11:43:31Z"],["dc.date.issued","2009"],["dc.identifier.doi","10.1093/cercor/bhp002"],["dc.identifier.gro","3151549"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/8358"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","1460-2199"],["dc.title","Attention Reshapes Center-Surround Receptive Field Structure in Macaque Cortical Area MT"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","8934"],["dc.bibliographiccitation.issue","36"],["dc.bibliographiccitation.journal","The Journal of neuroscience"],["dc.bibliographiccitation.lastpage","8944"],["dc.bibliographiccitation.volume","28"],["dc.contributor.author","Womelsdorf, Thilo"],["dc.contributor.author","Anton-Erxleben, Katharina"],["dc.contributor.author","Treue, Stefan"],["dc.date.accessioned","2017-09-07T11:43:29Z"],["dc.date.available","2017-09-07T11:43:29Z"],["dc.date.issued","2008"],["dc.description.abstract","Selective attention is the top-down mechanism to allocate neuronal processing resources to the most relevant subset of the information provided by an organism's sensors. Attentional selection of a spatial location modulates the spatial-tuning characteristics (i.e., the receptive fields of neurons in macaque visual cortex). These tuning changes include a shift of receptive field centers toward the focus of attention and a narrowing of the receptive field when the attentional focus is directed into the receptive field. Here, we report that when attention is directed into versus of receptive fields of neurons in the middle temporal visual area (area MT), the magnitude of the shift of the spatial-tuning functions is positively correlated with a narrowing of spatial tuning around the attentional focus. By developing and applying a general attentional gain model, we show that these nonmultiplicative attentional modulations of basic neuronal-tuning characteristics could be a direct consequence of a spatially distributed multiplicative interaction of a bell-shaped attentional spotlight with the spatially fined-grained sensory inputs of MT neurons. Additionally, the model lets us estimate the spatial spread of the attentional top-down signal impinging on visual cortex. Consistent with psychophysical reports, the estimated size of the “spotlight of attention” indicates a coarse spatial resolution of attention. These results illustrate how spatially specific nonmultiplicative attentional changes of neuronal-tuning functions can be the result of multiplicative gain modulation affecting sensory neurons in a widely distributed region in cortical space."],["dc.identifier.doi","10.1523/jneurosci.4030-07.2008"],["dc.identifier.gro","3151543"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/8351"],["dc.language.iso","en"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","0270-6474"],["dc.title","Receptive Field Shift and Shrinkage in Macaque Middle Temporal Area through Attentional Gain Modulation"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]