{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["59(10)"],"submitter":["Molina-Rodriguez S"],"pubmed_abstract":["Functional near-infrared spectroscopy (fNIRS) is an increasingly used technology for imaging neural correlates of cognitive processes. However, fNIRS signals are commonly impaired by task-evoked and spontaneous hemodynamic oscillations of non-cerebral origin, a major challenge in fNIRS research. In an attempt to isolate the task-evoked cortical response, we investigated the coupling between hemodynamic changes arising from superficial and deep layers during mental effort. For this aim, we applied a rhythmic mental arithmetic task to induce cyclic hemodynamic fluctuations suitable for effective frequency-resolved measurements. Twenty university students aged 18-25 years (eight males) underwent the task while hemodynamic changes were monitored in the forehead using a newly developed NIRS dev"],"journal":["Psychophysiology"],"pagination":["e14063"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9540762"],"repository":["biostudies-literature"],"pubmed_title":["Frequency-domain analysis of fNIRS fluctuations induced by rhythmic mental arithmetic."],"pmcid":["PMC9540762"],"pubmed_authors":["Molina-Rodriguez S","Mirete-Fructuoso M","Ibanez-Ballesteros J","Martinez LM"],"additional_accession":[]},"is_claimable":false,"name":"Frequency-domain analysis of fNIRS fluctuations induced by rhythmic mental arithmetic.","description":"Functional near-infrared spectroscopy (fNIRS) is an increasingly used technology for imaging neural correlates of cognitive processes. However, fNIRS signals are commonly impaired by task-evoked and spontaneous hemodynamic oscillations of non-cerebral origin, a major challenge in fNIRS research. In an attempt to isolate the task-evoked cortical response, we investigated the coupling between hemodynamic changes arising from superficial and deep layers during mental effort. For this aim, we applied a rhythmic mental arithmetic task to induce cyclic hemodynamic fluctuations suitable for effective frequency-resolved measurements. Twenty university students aged 18-25 years (eight males) underwent the task while hemodynamic changes were monitored in the forehead using a newly developed NIRS dev","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Oct","modification":"2025-04-04T20:03:59.985Z","creation":"2025-04-04T20:03:59.985Z"},"accession":"S-EPMC9540762","cross_references":{"pubmed":["35394075"],"doi":["10.1111/psyp.14063"]}}