Source 1primary paper2025MED
Toolkit/functional magnetic resonance imaging
functional magnetic resonance imaging
Also known as: fMRI, preclinical fMRI
Taxonomy: Technique Branch / Method. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
Functional magnetic resonance imaging (fMRI), exploiting the blood oxygen level-dependent (BOLD) contrast, is the most widely used technique to study brain function. Combined with tools from biotechnology, molecular biology, and genetics, preclinical fMRI offers unparalleled opportunities to experimentally test causal hypotheses that are beyond the reach of human research.
Usefulness & Problems
Why this is useful
fMRI is presented as a technique for studying brain function using BOLD contrast. In preclinical settings it can be combined with biotechnology, molecular biology, and genetics.; studying brain function; experimentally testing causal hypotheses in preclinical brain research; fMRI is the central functional imaging modality in this review and is combined with calcium imaging, optogenetics, electrophysiology, and chemogenetics. It is framed as a platform for linking cellular, systemic, and functional aspects of brain activity.; whole-brain functional imaging in multimodal animal studies; integrating readout and perturbation modalities for brain mapping; fMRI was used as one of four complementary techniques to identify an APOE4-associated hyperactivity phenotype in aged APOE mouse brains.; detecting brain hyperactivity phenotypes in aged APOE mice; fMRI is used as a readout modality to assess activity evoked by optogenetic single-point stimulation. In the abstract it is associated with mapping global connections across the whole brain.; assessing activity during optogenetic functional mapping; whole-brain functional connection mapping
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fMRI is presented as a technique for studying brain function using BOLD contrast. In preclinical settings it can be combined with biotechnology, molecular biology, and genetics.
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studying brain function
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experimentally testing causal hypotheses in preclinical brain research
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fMRI is the central functional imaging modality in this review and is combined with calcium imaging, optogenetics, electrophysiology, and chemogenetics. It is framed as a platform for linking cellular, systemic, and functional aspects of brain activity.
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whole-brain functional imaging in multimodal animal studies
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integrating readout and perturbation modalities for brain mapping
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fMRI was used as one of four complementary techniques to identify an APOE4-associated hyperactivity phenotype in aged APOE mouse brains.
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detecting brain hyperactivity phenotypes in aged APOE mice
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fMRI is used as a readout modality to assess activity evoked by optogenetic single-point stimulation. In the abstract it is associated with mapping global connections across the whole brain.
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assessing activity during optogenetic functional mapping
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whole-brain functional connection mapping
Problem solved
It enables experimental testing of causal hypotheses about brain function in preclinical research.; provides a preclinical brain-function readout that can be combined with biotechnology, molecular biology, and genetics; It provides a systems-level functional imaging readout that can be paired with more direct neural readout or perturbation tools. This supports brain functional mapping across scales.; provides a functional imaging platform that can be combined with cellular-scale readout or perturbation tools; It contributes a brain-level readout for detecting hyperactivity in this model.; provides one modality for identifying APOE4-associated hyperactivity in brain; It extends optogenetic functional mapping to brain-wide network readout rather than only local or microcircuit measurements.; provides a brain-wide readout modality for optogenetic mapping
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It enables experimental testing of causal hypotheses about brain function in preclinical research.
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provides a preclinical brain-function readout that can be combined with biotechnology, molecular biology, and genetics
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It provides a systems-level functional imaging readout that can be paired with more direct neural readout or perturbation tools. This supports brain functional mapping across scales.
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provides a functional imaging platform that can be combined with cellular-scale readout or perturbation tools
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It contributes a brain-level readout for detecting hyperactivity in this model.
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provides one modality for identifying APOE4-associated hyperactivity in brain
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It extends optogenetic functional mapping to brain-wide network readout rather than only local or microcircuit measurements.
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provides a brain-wide readout modality for optogenetic mapping
Problem links
provides a brain-wide readout modality for optogenetic mapping
LiteratureIt extends optogenetic functional mapping to brain-wide network readout rather than only local or microcircuit measurements.
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It extends optogenetic functional mapping to brain-wide network readout rather than only local or microcircuit measurements.
provides a functional imaging platform that can be combined with cellular-scale readout or perturbation tools
LiteratureIt provides a systems-level functional imaging readout that can be paired with more direct neural readout or perturbation tools. This supports brain functional mapping across scales.
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It provides a systems-level functional imaging readout that can be paired with more direct neural readout or perturbation tools. This supports brain functional mapping across scales.
provides a preclinical brain-function readout that can be combined with biotechnology, molecular biology, and genetics
LiteratureIt enables experimental testing of causal hypotheses about brain function in preclinical research.
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It enables experimental testing of causal hypotheses about brain function in preclinical research.
provides one modality for identifying APOE4-associated hyperactivity in brain
LiteratureIt contributes a brain-level readout for detecting hyperactivity in this model.
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It contributes a brain-level readout for detecting hyperactivity in this model.
Published Workflows
Objective: Identify and analyze an APOE4-associated neuronal hyperactivity phenotype in aged APOE mice and investigate its inhibitory mechanism.
Why it works: The study uses four complementary techniques to identify the hyperactivity phenotype and then performs further analysis to connect the phenotype to reduced inhibitory tone and reduced responsiveness to GABAergic inputs.
decreased background inhibitionreduced responsiveness of excitatory neurons to GABAergic inhibitory inputsfMRIin vitro electrophysiologyin vivo electrophysiologymetabolomics
Taxonomy & Function
Primary hierarchy
Technique Branch
Method: A concrete measurement method used to characterize an engineered system.
Mechanisms
blood oxygen level-dependent contrastTarget processes
No target processes tagged yet.
Input: Magnetic
Implementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationoperating role: sensor
The abstract indicates that fMRI relies on BOLD contrast and is discussed alongside MRI hardware development and protocol optimization.; uses blood oxygen level-dependent contrast; The abstract supports that fMRI is used in animal-model multimodal experiments. It does not provide scanner, sequence, coil, or compatibility details.; must be integrated with other neural readout or perturbation modalities in animal models for the review's scope; The approach requires optogenetic stimulation and fMRI-based activity measurement in rodent brain experiments.; must be paired with optogenetic stimulation in the rodent brain
The abstract does not claim that fMRI alone can fully link all aspects of brain function. The review instead focuses on combining it with other modalities and on the associated pitfalls.; the review abstract highlights challenges and choices when designing multimodal experiments involving fMRI
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Source 2review2022Frontiers in Neuroscience
Ranked Claims
Preclinical fMRI combined with biotechnology, molecular biology, and genetics offers opportunities to experimentally test causal hypotheses beyond the reach of human research.
Combined with tools from biotechnology, molecular biology, and genetics, preclinical fMRI offers unparalleled opportunities to experimentally test causal hypotheses that are beyond the reach of human research.
The paper reviews recent progress in MRI hardware development, provides recommendations for BOLD fMRI protocol optimization, and discusses recent applications.
Here, we review recent progress in MRI hardware development, provide recommendations for BOLD fMRI protocol optimization, and discuss recent applications.
Functional magnetic resonance imaging is the most widely used technique to study brain function.
Functional magnetic resonance imaging (fMRI), exploiting the blood oxygen level-dependent (BOLD) contrast, is the most widely used technique to study brain function.
Designing multimodal experiments that apply these tools within fMRI studies involves challenges and experimental choices.
Multimodal neuroimaging that combines fMRI with calcium imaging, optogenetics, electrophysiology, or chemogenetics offers an opportunity to better understand brain function.
Approval Evidence
4 sources5 linked approval claimsfirst-pass slugs fmri, functional-magnetic-resonance-imaging
Functional magnetic resonance imaging (fMRI), exploiting the blood oxygen level-dependent (BOLD) contrast, is the most widely used technique to study brain function. Combined with tools from biotechnology, molecular biology, and genetics, preclinical fMRI offers unparalleled opportunities to experimentally test causal hypotheses that are beyond the reach of human research.
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Being able to combine calcium imaging, optogenetics, electrophysiology, chemogenetics, and functional magnetic resonance imaging (fMRI) as part of the numerous efforts on brain functional mapping, we have a unique opportunity to better understand brain function.
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using four complimentary techniques-fMRI, in vitro electrophysiology, in vivo electrophysiology, and metabolomics
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We review recently developed functional mapping methods that use optogenetic single-point stimulation in the rodent brain and employ cellular electrophysiology, evoked motor movements, voltage sensitive dyes (VSDs), calcium indicators, or functional magnetic resonance imaging (fMRI) to assess activity.
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capabilitysupports
Preclinical fMRI combined with biotechnology, molecular biology, and genetics offers opportunities to experimentally test causal hypotheses beyond the reach of human research.
Combined with tools from biotechnology, molecular biology, and genetics, preclinical fMRI offers unparalleled opportunities to experimentally test causal hypotheses that are beyond the reach of human research.
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review scopesupports
The paper reviews recent progress in MRI hardware development, provides recommendations for BOLD fMRI protocol optimization, and discusses recent applications.
Here, we review recent progress in MRI hardware development, provide recommendations for BOLD fMRI protocol optimization, and discuss recent applications.
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usage prevalencesupports
Functional magnetic resonance imaging is the most widely used technique to study brain function.
Functional magnetic resonance imaging (fMRI), exploiting the blood oxygen level-dependent (BOLD) contrast, is the most widely used technique to study brain function.
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design considerationsupports
Designing multimodal experiments that apply these tools within fMRI studies involves challenges and experimental choices.
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review scope summarysupports
Multimodal neuroimaging that combines fMRI with calcium imaging, optogenetics, electrophysiology, or chemogenetics offers an opportunity to better understand brain function.
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Comparisons
Source-stated alternatives
The abstract does not present an alternative to fMRI within the review scope; instead it presents other modalities as complementary pairings with fMRI.; The abstract contrasts fMRI with in vitro electrophysiology, in vivo electrophysiology, and metabolomics as complementary approaches.; The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
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The abstract does not present an alternative to fMRI within the review scope; instead it presents other modalities as complementary pairings with fMRI.
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The abstract contrasts fMRI with in vitro electrophysiology, in vivo electrophysiology, and metabolomics as complementary approaches.
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The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
Source-backed strengths
described as the most widely used technique to study brain function; offers opportunities to test causal hypotheses beyond the reach of human research; serves as the common imaging platform across multiple multimodal pairings discussed in the review; used as one of four complementary techniques in the study; supports examination of global connections within the whole brain
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described as the most widely used technique to study brain function
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offers opportunities to test causal hypotheses beyond the reach of human research
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serves as the common imaging platform across multiple multimodal pairings discussed in the review
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used as one of four complementary techniques in the study
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supports examination of global connections within the whole brain
Compared with calcium indicators
The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
Shared frame: source-stated alternative in extracted literature
Strengths here: described as the most widely used technique to study brain function; offers opportunities to test causal hypotheses beyond the reach of human research; serves as the common imaging platform across multiple multimodal pairings discussed in the review.
Relative tradeoffs: the review abstract highlights challenges and choices when designing multimodal experiments involving fMRI.
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The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
Compared with electrophysiology
The abstract contrasts fMRI with in vitro electrophysiology, in vivo electrophysiology, and metabolomics as complementary approaches.; The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
Shared frame: source-stated alternative in extracted literature
Strengths here: described as the most widely used technique to study brain function; offers opportunities to test causal hypotheses beyond the reach of human research; serves as the common imaging platform across multiple multimodal pairings discussed in the review.
Relative tradeoffs: the review abstract highlights challenges and choices when designing multimodal experiments involving fMRI.
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The abstract contrasts fMRI with in vitro electrophysiology, in vivo electrophysiology, and metabolomics as complementary approaches.
Source:
The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
Compared with imaging
The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
Shared frame: source-stated alternative in extracted literature
Strengths here: described as the most widely used technique to study brain function; offers opportunities to test causal hypotheses beyond the reach of human research; serves as the common imaging platform across multiple multimodal pairings discussed in the review.
Relative tradeoffs: the review abstract highlights challenges and choices when designing multimodal experiments involving fMRI.
Source:
The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
Compared with imaging surveillance
The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
Shared frame: source-stated alternative in extracted literature
Strengths here: described as the most widely used technique to study brain function; offers opportunities to test causal hypotheses beyond the reach of human research; serves as the common imaging platform across multiple multimodal pairings discussed in the review.
Relative tradeoffs: the review abstract highlights challenges and choices when designing multimodal experiments involving fMRI.
Source:
The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
Compared with in vivo electrophysiology
The abstract contrasts fMRI with in vitro electrophysiology, in vivo electrophysiology, and metabolomics as complementary approaches.
Shared frame: source-stated alternative in extracted literature
Strengths here: described as the most widely used technique to study brain function; offers opportunities to test causal hypotheses beyond the reach of human research; serves as the common imaging platform across multiple multimodal pairings discussed in the review.
Relative tradeoffs: the review abstract highlights challenges and choices when designing multimodal experiments involving fMRI.
Source:
The abstract contrasts fMRI with in vitro electrophysiology, in vivo electrophysiology, and metabolomics as complementary approaches.
Compared with voltage-sensitive dye imaging
The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
Shared frame: source-stated alternative in extracted literature
Strengths here: described as the most widely used technique to study brain function; offers opportunities to test causal hypotheses beyond the reach of human research; serves as the common imaging platform across multiple multimodal pairings discussed in the review.
Relative tradeoffs: the review abstract highlights challenges and choices when designing multimodal experiments involving fMRI.
Source:
The abstract lists electrophysiology, evoked motor movements, VSD imaging, and calcium indicators as alternative readouts.
Ranked Citations
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