Results 231 to 240 of about 83,157 (351)

Confined spaces in space: Cerebral implications of chronic elevations of inspired carbon dioxide and implications for long‐duration space travel

Experimental Physiology, EarlyView.
Abstract Cerebrovascular regulation is critically dependent upon the arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_{\mathrm{2}}}}}$), owing to its effect on cerebral blood flow, tissue PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_{\mathrm{2}}}}}$, tissue proton concentration, cerebral metabolism and cognitive and neuronal ...
Jay M. J. R. Carr, Philip N. Ainslie, Trevor Day   +2 more
wiley   +1 more source

Transcranial Direct Current Stimulation (tDCS) in Diabetes: A Focused and Mechanistic Review of Symptom and Function Outcomes. [PDF]

J Clin Med
Chmiel J, Kurpas D.
europepmc   +1 more source

Transcranial direct current stimulation induced modulation of cortical haemodynamics: A comparison between time-domain and continuous-wave functional near-infrared spectroscopy

, 2015
Makii Muthalib, Rebecca Re, Pierre Besson, Stéphane Perrey, John C. Rothwell, Davide Contini, Lorenzo Spinelli, Alessandro Torricelli   +7 more
openalex   +2 more sources

Feasibility of superimposed supine cycling and lower body negative pressure as an effective means of prolonging exercise tolerance in individuals experiencing persisting post‐concussive symptoms: Preliminary results

Experimental Physiology, EarlyView.
Abstract To examine the feasibility, utility and safety of superimposed lower body negative pressure (LBNP) and tilt during supine cycling in individuals suffering from persisting post‐concussive symptoms (PPCS). Eleven individuals aged 17–31 (6 females/5 males) participated in two randomized separate visits, 1 week apart.
Raelyn Javra, Joel S. Burma, Nathan E. Johnson, Jonathan D. Smirl   +3 more
wiley   +1 more source

Regional changes in cerebral blood flow between the upright and supine posture and over 3 days of bed rest

Experimental Physiology, EarlyView.
Abstract A reduction in cerebral blood flow (CBF) has been observed during spaceflight and bed rest. We aimed to examine the magnitude and regional heterogeneity of the decrease in CBF during bed rest compared to posture changes on Earth. Seventeen participants (age, 29 ± 9 years, 7 females) were studied in the upright and supine posture and over 3 ...
Carmen Possnig, Kyohei Marume, Gautam Babu, Sylvan L. J. E. Janssen, Christopher M. Hearon Jr, Katrin A. Dias, Satyam Sarma, Justin S. Lawley, Benjamin D. Levine   +8 more
wiley   +1 more source

Effectiveness of Transcranial Direct Current Stimulation on Cognitive Function: A Pilot Study. [PDF]

Med J Islam Repub Iran
Afsharipoor M, Hejazi-Shirmard M, Kalantari M, Akbarzade Baghban A.   +3 more
europepmc   +1 more source

Quantification of the cerebral pressure–flow relationship directional sensitivity: Reliability of shorter repeated squat–stand durations

Experimental Physiology, EarlyView.
Abstract The magnitude of changes in middle cerebral artery mean blood velocity (MCAv) is attenuated when mean arterial pressure (MAP) increases compared with when MAP decreases. This directional sensitivity has been characterized using a time‐corrected ratio calculated on MCAv and MAP changes induced by repeated squat–stands (RSS) at 0.05 and 0.10 Hz ...
Lawrence Labrecque, Marc‐Antoine Roy, Shahrzad Soleimani Dehnavi, Mahmoudreza Taghizadeh, Joel S. Burma, Jonathan D. Smirl, Patrice Brassard   +6 more
wiley   +1 more source

Effect of preoperative transcranial direct current stimulation on postoperative delirium in elderly patients following laparoscopic surgery. [PDF]

World J Psychiatry
Yang X, Wei YF, Ye CH, Tian WD, Li XY, Hu YJ, Chen LP.   +6 more
europepmc   +1 more source

Acceptability of home-based transcranial direct current stimulation (tDCS) in major depression: a qualitative analysis of individual experiences

Rachael M. Rimmer, Rachel D. Woodham, Sharon Cahill, Cynthia H.Y. Fu   +3 more
openalex   +2 more sources

Hemodynamic responses in rat brain during transcranial direct current stimulation: a functional near-infrared spectroscopy study

, 2014
Chang Hee Han, Hyuna Song, Yong Guk Kang, Beop-Min Kim, Chang‐Hwan Im   +4 more
openalex   +1 more source