Search Results - "Johanna, Tuunanen"

Synchronous functional magnetic resonance eye imaging, video ophthalmoscopy, and eye surface imaging reveal the human brain and eye pulsation mechanisms by Ebrahimi, Seyed-Mohsen, Tuunanen, Johanna, Saarela, Ville, Honkamo, Marja, Huotari, Niko, Raitamaa, Lauri, Korhonen, Vesa, Helakari, Heta, Järvelä, Matti, Kaakinen, Mika, Eklund, Lauri, Kiviniemi, Vesa

“…The eye possesses a paravascular solute transport pathway that is driven by physiological pulsations, resembling the brain glymphatic pathway. We developed…”
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Cardiovascular and vasomotor pulsations in the brain and periphery during awake and NREM sleep in a multimodal fMRI study by Tuunanen, Johanna, Helakari, Heta, Huotari, Niko, Väyrynen, Tommi, Järvelä, Matti, Kananen, Janne, Kivipää, Annastiina, Raitamaa, Lauri, Ebrahimi, Seyed-Mohsen, Kallio, Mika, Piispala, Johanna, Kiviniemi, Vesa, Korhonen, Vesa

“…The cerebrospinal fluid dynamics in the human brain are driven by physiological pulsations, including cardiovascular pulses and very low-frequency (< 0.1 Hz)…”
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Effect of sleep deprivation and NREM sleep stage on physiological brain pulsations by Helakari, Heta, Järvelä, Matti, Väyrynen, Tommi, Tuunanen, Johanna, Piispala, Johanna, Kallio, Mika, Ebrahimi, Seyed Mohsen, Poltojainen, Valter, Kananen, Janne, Elabasy, Ahmed, Huotari, Niko, Raitamaa, Lauri, Tuovinen, Timo, Korhonen, Vesa, Nedergaard, Maiken, Kiviniemi, Vesa

“…Sleep increases brain fluid transport and the power of pulsations driving the fluids. We investigated how sleep deprivation or electrophysiologically different…”
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Cardiovascular Pulsatility Increases in Visual Cortex Before Blood Oxygen Level Dependent Response During Stimulus by Huotari, Niko, Tuunanen, Johanna, Raitamaa, Lauri, Raatikainen, Ville, Kananen, Janne, Helakari, Heta, Tuovinen, Timo, Järvelä, Matti, Kiviniemi, Vesa, Korhonen, Vesa

“…The physiological pulsations that drive tissue fluid homeostasis are not well characterized during brain activation. Therefore, we used fast magnetic resonance…”
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Association of body-mass index with physiological brain pulsations across adulthood – a fast fMRI study by Raitamaa, Lauri, Kautto, Joona, Tuunanen, Johanna, Helakari, Heta, Huotari, Niko, Järvelä, Matti, Korhonen, Vesa, Kiviniemi, Vesa

“…Background/objective Obesity is a risk factor for several brain-related health issues, and high body-mass index (BMI) is associated with an increased risk for…”
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Human NREM Sleep Promotes Brain-Wide Vasomotor and Respiratory Pulsations by Helakari, Heta, Korhonen, Vesa, Holst, Sebastian C, Piispala, Johanna, Kallio, Mika, Väyrynen, Tommi, Huotari, Niko, Raitamaa, Lauri, Tuunanen, Johanna, Kananen, Janne, Järvelä, Matti, Tuovinen, Timo, Raatikainen, Ville, Borchardt, Viola, Kinnunen, Hannu, Nedergaard, Maiken, Kiviniemi, Vesa

“…The physiological underpinnings of the necessity of sleep remain uncertain. Recent evidence suggests that sleep increases the convection of cerebrospinal fluid…”
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Infra-slow fluctuations in cortical potentials and respiration drive fast cortical EEG rhythms in sleeping and waking states by Väyrynen, Tommi, Helakari, Heta, Korhonen, Vesa, Tuunanen, Johanna, Huotari, Niko, Piispala, Johanna, Kallio, Mika, Raitamaa, Lauri, Kananen, Janne, Järvelä, Matti, Matias Palva, J., Kiviniemi, Vesa

“…•Infra-slow fluctuations (ISF) and respiration are both coupled with fast neuronal oscillation amplitudes.•ISF and respiration drive amplitude dynamics of fast…”
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Synchronous functional magnetic resonance eye imaging, video ophthalmoscopy, and eye surface imaging reveal the human brain and eye pulsation mechanisms by Seyed-Mohsen, Ebrahimi, Johanna, Tuunanen, Ville, Saarela, Marja, Honkamo, Niko, Huotari, Lauri, Raitamaa, Vesa, Korhonen, Heta, Helakari, Mika, Kaakinen, Lauri, Eklund, Vesa, Kiviniemi

“…Recent research shows the eye has a paravascular solute transport pathway driven by physiological pulsations resembling the brain. we developed synchronous…”
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