ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2015
Neurochemical and BOLD responses during neuronal activation measured in the human visual cortex at 7 Tesla.
Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02677740 (Mechanisms of Non-Invasive Neuromodulation Interventions), which is not on this map. Cited by 106 papers, 5 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Mechanisms of Non-Invasive Neuromodulation Interventions: Influence on Human Neurochemistry and Functional Connectivity
Who cites it
106 citing papers in PubMed, 5 syntheses or guidelines pooled it, 202 citations in OpenAlex.
- Lactate Changes Quantified by fMRS: A Meta-Analysis.NMR in biomedicine · 2026Pooled it
- Functional MRS studies of GABA and glutamate/Glx - A systematic review and meta-analysis.Neuroscience and biobehavioral reviews · 2023Pooled it
- Glucose sparing by glycogenolysis (GSG) determines the relationship between brain metabolism and neurotransmission.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022Pooled it
- GABA, Glutamate and Neural Activity: A Systematic Review With Meta-Analysis of MultimodalFrontiers in psychiatry · 2021Pooled it
- Decreased Brain pH as a Shared Endophenotype of Psychiatric Disorders.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018Pooled it
- Glutamate levels and perfusion in pons during migraine attacks: A 3T MRI study using proton spectroscopy and arterial spin labeling.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021Trial
- Metabolite concentration changes associated with positive and negative BOLD responses in the human visual cortex: A functional MRS study at 7 Tesla.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020Trial
- Higher physiological vulnerability to hypoxic exposure with advancing age in the human brain.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020Trial
- Pharmacological stress impairs working memory performance and attenuates dorsolateral prefrontal cortex glutamate modulation.NeuroImage · 2019Trial
- Effects of sildenafil and calcitonin gene-related peptide on brainstem glutamate levels: a pharmacological proton magnetic resonance spectroscopy study at 3.0 T.The journal of headache and pain · 2018Trial
- Effects of serotonin 2A/1A receptor stimulation on social exclusion processing.Proceedings of the National Academy of Sciences of the United States of America · 2016Trial
- Real-Time Neurofeedback Training to Modulate Glutamate-Glutamine Concentration Using Functional Magnetic Resonance Spectroscopy.NMR in biomedicine · 2026Article
- Direct mapping of neural activity via glutamate-weighted magnetic resonance imaging.Innovation (Cambridge (Mass.)) · 2026Article
- Prefrontal inhibitory mechanisms associated with Putamen activity during valence learning revealed by multimodal fMRI-fMRS.Communications biology · 2025Article
- Blood oxygenation level-dependent responses in neuromodulatory nuclei and their associations with attention and memory across age groups.Neurobiology of aging · 2025Article
- Disentangling metabolic and neurovascular timescales supporting cognitive processes.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Regional Excitatory-Inhibitory Balance Relates to Self-Reference Effect on Recollection via the Precuneus/Posterior Cingulate Cortex-Medial Prefrontal Cortex Connectivity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Aspartate in the Brain: A Review.Neurochemical research · 2025Review
- Article
- Functional magnetic resonance spectroscopy of prolonged motor activation using conventional and spectral GLM analyses.Imaging neuroscience (Cambridge, Mass.) · 2025Article
46 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 4 institutions in 4 countries.
Funding
Abstract
Several laboratories have consistently reported small concentration changes in lactate, glutamate, aspartate, and glucose in the human cortex during prolonged stimuli. However, whether such changes correlate with blood oxygenation level-dependent functional magnetic resonance imaging (BOLD-fMRI) signals have not been determined. The present study aimed at characterizing the relationship between metabolite concentrations and BOLD-fMRI signals during a block-designed paradigm of visual stimulation. Functional magnetic resonance spectroscopy (fMRS) and fMRI data were acquired from 12 volunteers. A short echo-time semi-LASER localization sequence optimized for 7 Tesla was used to achieve full signal-intensity MRS data. The group analysis confirmed that during stimulation lactate and glutamate increased by 0.26 ± 0.06 μmol/g (~30%) and 0.28 ± 0.03 μmol/g (~3%), respectively, while aspartate and glucose decreased by 0.20 ± 0.04 μmol/g (~5%) and 0.19 ± 0.03 μmol/g (~16%), respectively. The single-subject analysis revealed that BOLD-fMRI signals were positively correlated with glutamate and lactate concentration changes. The results show a linear relationship between metabolic and BOLD responses in the presence of strong excitatory sensory inputs, and support the notion that increased functional energy demands are sustained by oxidative metabolism. In addition, BOLD signals were inversely correlated with baseline γ-aminobutyric acid concentration. Finally, we discussed the critical importance of taking into account linewidth effects on metabolite quantification in fMRS paradigms.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.