Heta Helakari

673 total citations
25 papers, 407 citations indexed

About

Heta Helakari is a scholar working on Cognitive Neuroscience, Radiology, Nuclear Medicine and Imaging and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Heta Helakari has authored 25 papers receiving a total of 407 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Cognitive Neuroscience, 14 papers in Radiology, Nuclear Medicine and Imaging and 5 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Heta Helakari's work include Functional Brain Connectivity Studies (16 papers), Advanced MRI Techniques and Applications (8 papers) and Neural dynamics and brain function (5 papers). Heta Helakari is often cited by papers focused on Functional Brain Connectivity Studies (16 papers), Advanced MRI Techniques and Applications (8 papers) and Neural dynamics and brain function (5 papers). Heta Helakari collaborates with scholars based in Finland, United States and Denmark. Heta Helakari's co-authors include Vesa Kiviniemi, Vesa Korhonen, Niko Huotari, Lauri Raitamaa, Janne Kananen, Ville Raatikainen, Timo Tuovinen, Viola Borchardt, Maiken Nedergaard and Pierre LeVan and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Neuroscience and NeuroImage.

In The Last Decade

Heta Helakari

23 papers receiving 404 citations

Peers

Countries citing papers authored by Heta Helakari

Since Specialization

Citations

This map shows the geographic impact of Heta Helakari's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Heta Helakari with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Heta Helakari more than expected).

Fields of papers citing papers by Heta Helakari

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Heta Helakari. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Heta Helakari. The network helps show where Heta Helakari may publish in the future.

Co-authorship network of co-authors of Heta Helakari

This figure shows the co-authorship network connecting the top 25 collaborators of Heta Helakari. A scholar is included among the top collaborators of Heta Helakari based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Heta Helakari. Heta Helakari is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Sleep Alters the Velocity of Physiological Brain Pulsations in Humans 2026 ·Advanced Science ·(unknown), Heta Helakari, (unknown), (unknown), (unknown), Lauri Raitamaa, (unknown), (unknown), Mika Kaakinen, (unknown), (unknown), (unknown), Tapio Seppänen, (unknown)	0
2	Ultrafast Imaging of Physiological Brain Pulsations With Magnetic Resonance Encephalography—From Noise to Predictive Clinical Biomarker 2025 ·NMR in Biomedicine ·Vesa Kiviniemi, Heta Helakari, Lauri Raitamaa, Niko Huotari, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), Timo Tuovinen, Janne Kananen, Vesa Korhonen	3
3	Reduced harmonic complexity of brain parenchymal cardiovascular pulse waveforms in Alzheimer’s disease 2025 ·NeuroImage ·(unknown), (unknown), M Aho, (unknown), (unknown), Vesa Korhonen, (unknown), Niko Huotari, Heta Helakari, (unknown), Lauri Raitamaa, (unknown), Johanna Krüger, Vesa Kiviniemi, Janne Kananen	1
4	Ultrafast complex-valued 4D fMRI reveals sleep-induced brain respiratory pulsation changes in both magnitude and phase signals 2025 ·NeuroImage ·(unknown), Lauri Raitamaa, Heta Helakari, Jussi Kantola, (unknown), Janne Kananen, (unknown), Vesa Korhonen, (unknown), Timo Tuovinen, Jürgen Hennig, Vesa Kiviniemi	1
5	Orexin effect on physiological pulsations of the human brain 2025 ·Proceedings of the National Academy of Sciences ·(unknown), Janne Kananen, Heta Helakari, Vesa Korhonen, Niko Huotari, (unknown), (unknown), Lauri Raitamaa, (unknown), Mika Kallio, (unknown), Hanna Ansakorpi, Vesa Kiviniemi	1
6	Synchronous functional magnetic resonance eye imaging, video ophthalmoscopy, and eye surface imaging reveal the human brain and eye pulsation mechanisms 2024 ·Scientific Reports ·(unknown), (unknown), Ville Saarela, (unknown), Niko Huotari, Lauri Raitamaa, Vesa Korhonen, Heta Helakari, (unknown), Mika Kaakinen, Lauri Eklund, Vesa Kiviniemi	1
7	Cardiovascular and vasomotor pulsations in the brain and periphery during awake and NREM sleep in a multimodal fMRI study 2024 ·Frontiers in Neuroscience ·(unknown), Heta Helakari, Niko Huotari, (unknown), (unknown), Janne Kananen, (unknown), Lauri Raitamaa, (unknown), Mika Kallio, (unknown), Vesa Kiviniemi, Vesa Korhonen	3
8	Association of body-mass index with physiological brain pulsations across adulthood – a fast fMRI study 2024 ·International Journal of Obesity ·Lauri Raitamaa, (unknown), (unknown), Heta Helakari, Niko Huotari, (unknown), Vesa Korhonen, Vesa Kiviniemi	3
9	Infra-slow fluctuations in cortical potentials and respiration drive fast cortical EEG rhythms in sleeping and waking states 2023 ·Clinical Neurophysiology ·(unknown), Heta Helakari, Vesa Korhonen, (unknown), Niko Huotari, (unknown), Mika Kallio, Lauri Raitamaa, Janne Kananen, (unknown), J. Matias Palva, Vesa Kiviniemi	6
10	Effect of sleep deprivation and NREM sleep stage on physiological brain pulsations 2023 ·Frontiers in Neuroscience ·Heta Helakari, (unknown), (unknown), (unknown), (unknown), Mika Kallio, (unknown), (unknown), Janne Kananen, (unknown), Niko Huotari, Lauri Raitamaa, Timo Tuovinen, Vesa Korhonen, Maiken Nedergaard, Vesa Kiviniemi	15
11	Cardiovascular Pulsatility Increases in Visual Cortex Before Blood Oxygen Level Dependent Response During Stimulus 2022 ·Frontiers in Neuroscience ·Niko Huotari, (unknown), Lauri Raitamaa, Ville Raatikainen, Janne Kananen, Heta Helakari, Timo Tuovinen, (unknown), Vesa Kiviniemi, Vesa Korhonen	8
12	Human NREM Sleep Promotes Brain-Wide Vasomotor and Respiratory Pulsations 2022 ·Journal of Neuroscience ·Heta Helakari, Vesa Korhonen, Sebastian C. Holst, (unknown), Mika Kallio, (unknown), Niko Huotari, Lauri Raitamaa, (unknown), Janne Kananen, (unknown), Timo Tuovinen, Ville Raatikainen, Viola Borchardt, Hannu Kinnunen, Maiken Nedergaard, Vesa Kiviniemi	72
13	Spectral entropy provides separation between Alzheimer’s disease patients and controls: a study of fNIRS 2022 ·The European Physical Journal Special Topics ·Hany Ferdinando, (unknown), Vesa Korhonen, Heta Helakari, Vesa Kiviniemi, Teemu Myllylä	7
14	Inverse correlation of fluctuations of cerebral blood and water concentrations in humans 2021 ·The European Physical Journal Plus ·Viola Borchardt, Vesa Korhonen, Heta Helakari, Maiken Nedergaard, Teemu Myllylä, Vesa Kiviniemi	7
15	The variability of functional MRI brain signal increases in Alzheimer's disease at cardiorespiratory frequencies 2020 ·Scientific Reports ·Timo Tuovinen, Janne Kananen, (unknown), Johannes Lieslehto, Vesa Korhonen, (unknown), (unknown), Niko Huotari, Lauri Raitamaa, Heta Helakari, Ahmed Abou Elseoud, Johanna Krüger, Pierre LeVan, Osmo Tervonen, Jürgen Hennig, Anne M. Remes, Maiken Nedergaard, Vesa Kiviniemi	40
16	Respiratory-related brain pulsations are increased in epilepsy—a two-centre functional MRI study 2020 ·Brain Communications ·Janne Kananen, Heta Helakari, Vesa Korhonen, Niko Huotari, (unknown), Lauri Raitamaa, Ville Raatikainen, (unknown), Timo Tuovinen, Maiken Nedergaard, Julia Jacobs, Pierre LeVan, Hanna Ansakorpi, Vesa Kiviniemi	18
17	Dynamic lag analysis reveals atypical brain information flow in autism spectrum disorder 2019 ·Autism Research ·Ville Raatikainen, Vesa Korhonen, Viola Borchardt, Niko Huotari, Heta Helakari, Janne Kananen, Lauri Raitamaa, Leena Joskitt, (unknown), Tuula Hurtig, Hanna Ebeling, Lucina Q. Uddin, Vesa Kiviniemi	14
18	Sampling Rate Effects on Resting State fMRI Metrics 2019 ·Frontiers in Neuroscience ·Niko Huotari, Lauri Raitamaa, Heta Helakari, Janne Kananen, Ville Raatikainen, (unknown), Timo Tuovinen, Jussi Kantola, Viola Borchardt, Vesa Kiviniemi, Vesa Korhonen	63
19	Spectral entropy indicates electrophysiological and hemodynamic changes in drug-resistant epilepsy – A multimodal MREG study 2019 ·NeuroImage Clinical ·Heta Helakari, Janne Kananen, Niko Huotari, Lauri Raitamaa, Timo Tuovinen, Viola Borchardt, (unknown), Ville Raatikainen, Tuomo Starck, (unknown), Teemu Myllylä, Osmo Tervonen, Seppo Rytky, Tuija Keinänen, Vesa Korhonen, Vesa Kiviniemi, Hanna Ansakorpi	31
20	Hypertension Does Not Alter the Increase in Cardiac Baroreflex Sensitivity Caused by Moderate Cold Exposure 2016 ·Frontiers in Physiology ·(unknown), Antti M. Kiviniemi, Mikko P. Tulppo, Heta Helakari, Hannu Rintamäki, Matti Mäntysaari, Karl‐Heinz Herzig, Sirkka Keinänen‐Kiukaanniemi, Jouni J. K. Jaakkola, Tiina M. Ikäheimo	13

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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