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- # Metadata for DOI registration according to DataCite Metadata Schema 4.1.
- # For detailed schema description see https://doi.org/10.5438/0014
- ## Required fields
- # The main researchers involved. Include digital identifier (e.g., ORCID)
- # if possible, including the prefix to indicate its type.
- authors:
- -
- firstname: "Lennart"
- lastname: "Wittkuhn"
- affiliation: "Max Planck Institute for Human Development, Max Planck UCL Centre for Computational Psychiatry and Ageing Research, Berlin, Germany"
- id: "ORCID:0000-0001-2345-6789"
- -
- firstname: "Nicolas W."
- lastname: "Schuck"
- affiliation: "Max Planck Institute for Human Development, Max Planck UCL Centre for Computational Psychiatry and Ageing Research, Berlin, Germany"
- id: "ResearcherID:X-1234-5678"
- # A title to describe the published resource.
- title: "Faster than thought: Detecting sub-second activation sequences with sequential fMRI pattern analysis"
- # Additional information about the resource, e.g., a brief abstract.
- description: |
- Neural computations are often anatomically localized and executed on sub-second time scales.
- Understanding the brain therefore requires methods that offer sufficient spatial and temporal resolution.
- This poses a particular challenge for the study of the human brain because non-invasive methods have either high temporal or spatial resolution, but not both.
- Here, we introduce a novel multivariate analysis method for conventional blood-oxygen-level dependent functional magnetic resonance imaging (BOLD fMRI) that allows to study sequentially activated neural patterns separated by less than 100 ms with anatomical precision.
- Human participants underwent fMRI and were presented with sequences of visual stimuli separated by 32 to 2048 ms.
- Probabilistic pattern classifiers were trained on fMRI data to detect the presence of image-specific activation patterns in early visual and ventral temporal cortex.
- The classifiers were then applied to data recorded during sequences of the same images presented at increasing speeds.
- Our results show that probabilistic classifier time courses allowed to detect neural representations and their order, even when images were separated by only 32 ms.
- Moreover, the frequency spectrum of the statistical sequentiality metric distinguished between sequence speeds on sub-second versus supra-second time scales.
- These results survived when data with high levels of noise and rare sequence events at unknown times were analyzed.
- Our method promises to lay the groundwork for novel investigations of fast neural computations in the human brain, such as hippocampal replay.
- # Lit of keywords the resource should be associated with.
- # Give as many keywords as possible, to make the resource findable.
- keywords:
- - Neuroscience
- - functional magnetic resonance imaging
- - hippocampal replay
- # License information for this resource. Please provide the license name and/or a link to the license.
- # Please add also a corresponding LICENSE file to the repository.
- license:
- name: "Creative Commons Attribution-NonCommercial-ShareAlike 4.0"
- url: "https://creativecommons.org/licenses/by-nc-sa/4.0/"
- ## Optional Fields
- # Funding information for this resource.
- # Separate funder name and grant number by comma.
- funding:
- - "Max Planck Society (M.TN.A.BILD0004)"
- - "Max Planck Institute for Human Development"
- # Related publications. reftype might be: IsSupplementTo, IsDescribedBy, IsReferencedBy.
- # Please provide digital identifier (e.g., DOI) if possible.
- # Add a prefix to the ID, separated by a colon, to indicate the source.
- # Supported sources are: DOI, arXiv, PMID
- # In the citation field, please provide the full reference, including title, authors, journal etc.
- references:
- -
- id: "doi:10.1101/2020.02.15.950667"
- reftype: "IsSupplementTo"
- citation: "Wittkuhn, L. and Schuck, N. W. (2020). Faster than thought: Detecting sub-second activation sequences with sequential fMRI pattern analysis. bioRxiv. doi:10.1101/2020.02.15.950667"
- # Resource type. Default is Dataset, other possible values are Software, DataPaper, Image, Text.
- resourcetype: Dataset
- # Do not edit or remove the following line
- templateversion: 1.2
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