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Cortical sensitivity to natural scene structure.
Kaiser D, Häberle G, Cichy RM. Kaiser D, et al. Hum Brain Mapp. 2020 Apr 1;41(5):1286-1295. doi: 10.1002/hbm.24875. Epub 2019 Nov 22. Hum Brain Mapp. 2020. PMID: 31758632 Free PMC article.
Here, we tested how such perceptual effects are reflected in neural sensitivity to scene structure. During separate fMRI and EEG experiments, participants passively viewed scenes whose spatial structure (i.e., the position of scene parts) and categorical structure (i.e., t …
Here, we tested how such perceptual effects are reflected in neural sensitivity to scene structure. During separate fMRI and EEG expe …
The human visual system differentially represents subjectively and objectively invisible stimuli.
Stein T, Kaiser D, Fahrenfort JJ, van Gaal S. Stein T, et al. Among authors: kaiser d. PLoS Biol. 2021 May 5;19(5):e3001241. doi: 10.1371/journal.pbio.3001241. eCollection 2021 May. PLoS Biol. 2021. PMID: 33951043 Free PMC article.
The preferred awareness measure depends on the theoretical position about consciousness and may influence conclusions about the extent of unconscious processing and about the neural correlates of consciousness. We obtained functional magnetic resonance imaging (fMRI
The preferred awareness measure depends on the theoretical position about consciousness and may influence conclusions about the extent of un …
Perceived and mentally rotated contents are differentially represented in cortical depth of V1.
Iamshchinina P, Kaiser D, Yakupov R, Haenelt D, Sciarra A, Mattern H, Luesebrink F, Duezel E, Speck O, Weiskopf N, Cichy RM. Iamshchinina P, et al. Among authors: kaiser d. Commun Biol. 2021 Sep 14;4(1):1069. doi: 10.1038/s42003-021-02582-4. Commun Biol. 2021. PMID: 34521987 Free PMC article.
Inspired by neuroanatomical studies showing that feedforward and feedback connections in V1 terminate in different cortical layers, we hypothesized that this anatomical compartmentalization underlies functional segregation of external and internally-generated visual conten …
Inspired by neuroanatomical studies showing that feedforward and feedback connections in V1 terminate in different cortical layers, we hypot …
Modelling brain representations of abstract concepts.
Kaiser D, Jacobs AM, Cichy RM. Kaiser D, et al. PLoS Comput Biol. 2022 Feb 4;18(2):e1009837. doi: 10.1371/journal.pcbi.1009837. eCollection 2022 Feb. PLoS Comput Biol. 2022. PMID: 35120139 Free PMC article.
Here, we used computational models of distributional semantics to predict multivariate fMRI activity patterns during the activation and contextualization of abstract concepts. ...
Here, we used computational models of distributional semantics to predict multivariate fMRI activity patterns during the activation a …
A neural mechanism for contextualizing fragmented inputs during naturalistic vision.
Kaiser D, Turini J, Cichy RM. Kaiser D, et al. Elife. 2019 Oct 9;8:e48182. doi: 10.7554/eLife.48182. Elife. 2019. PMID: 31596234 Free PMC article.
Here we show that the visual system achieves this contextualization by exploiting spatial schemata, that is our knowledge about the composition of natural scenes. We measured fMRI and EEG responses to incomplete scene fragments and used representational similarity analysis …
Here we show that the visual system achieves this contextualization by exploiting spatial schemata, that is our knowledge about the composit …
The Neural Dynamics of Familiar Face Recognition.
Ambrus GG, Kaiser D, Cichy RM, Kovács G. Ambrus GG, et al. Among authors: kaiser d. Cereb Cortex. 2019 Dec 17;29(11):4775-4784. doi: 10.1093/cercor/bhz010. Cereb Cortex. 2019. PMID: 30753332
In real-life situations, the appearance of a person's face can vary substantially across different encounters, making face recognition a challenging task for the visual system. Recent fMRI decoding studies have suggested that face recognition is supported by identity repre …
In real-life situations, the appearance of a person's face can vary substantially across different encounters, making face recognition a cha …
Coherent natural scene structure facilitates the extraction of task-relevant object information in visual cortex.
Kaiser D, Häberle G, Cichy RM. Kaiser D, et al. Neuroimage. 2021 Oct 15;240:118365. doi: 10.1016/j.neuroimage.2021.118365. Epub 2021 Jul 4. Neuroimage. 2021. PMID: 34233220 Free PMC article.
In this study, we explore how the brain uses the typical composition of real-world environments to efficiently solve this task. We recorded fMRI activity while participants performed two different categorization tasks on natural scenes. ...
In this study, we explore how the brain uses the typical composition of real-world environments to efficiently solve this task. We recorded …
Shape-independent object category responses revealed by MEG and fMRI decoding.
Kaiser D, Azzalini DC, Peelen MV. Kaiser D, et al. J Neurophysiol. 2016 Apr;115(4):2246-50. doi: 10.1152/jn.01074.2015. Epub 2016 Jan 6. J Neurophysiol. 2016. PMID: 26740535 Free PMC article.
In the present study, we used a cross-classification approach on functional MRI (fMRI) and magnetoencephalographic (MEG) data to reveal both category-independent shape responses and shape-independent category responses. ...This analysis revealed significant d …
In the present study, we used a cross-classification approach on functional MRI (fMRI) and magnetoencephalographic (MEG …
Disentangling Representations of Object Shape and Object Category in Human Visual Cortex: The Animate-Inanimate Distinction.
Proklova D, Kaiser D, Peelen MV. Proklova D, et al. Among authors: kaiser d. J Cogn Neurosci. 2016 May;28(5):680-92. doi: 10.1162/jocn_a_00924. Epub 2016 Jan 14. J Cogn Neurosci. 2016. PMID: 26765944 Free article.
Objects belonging to different categories evoke reliably different fMRI activity patterns in human occipitotemporal cortex, with the most prominent distinction being that between animate and inanimate objects. An unresolved question is whether these categorical distinction …
Objects belonging to different categories evoke reliably different fMRI activity patterns in human occipitotemporal cortex, with the …
MEG sensor patterns reflect perceptual but not categorical similarity of animate and inanimate objects.
Proklova D, Kaiser D, Peelen MV. Proklova D, et al. Among authors: kaiser d. Neuroimage. 2019 Jun;193:167-177. doi: 10.1016/j.neuroimage.2019.03.028. Epub 2019 Mar 15. Neuroimage. 2019. PMID: 30885785 Free article.
Human high-level visual cortex shows a distinction between animate and inanimate objects, as revealed by fMRI. Recent studies have shown that object animacy can similarly be decoded from MEG sensor patterns. ...Nearly identical results were found in a second MEG experiment …
Human high-level visual cortex shows a distinction between animate and inanimate objects, as revealed by fMRI. Recent studies have sh …
17 results