scholarly journals Brain responses to high frequencies (270 Hz-480 Hz) changes due to vibratory stimulation of human fingertips: An fMRI study

2020 ◽  
Vol 1497 ◽  
pp. 012012
Author(s):  
F A S Seri ◽  
A I Abd Hamid ◽  
J M Abdullah ◽  
Z Idris ◽  
H Omar
Keyword(s):  
Vibratory Stimulation ◽  
High Frequencies ◽  
Brain Responses ◽  
Fmri Study ◽  
Stimulation Of

BRAIN RESPONSES TO PRICE INCREASE OF LUXURY VERSUS FASHION BRANDS AN FMRI STUDY

2017 ◽  
Vol 2017 ◽  
pp. 104-104
Author(s):  
Hanah Choi ◽  
◽  
DongHyun Kim ◽  
EunJu Lee ◽  
Eunju Ko
Keyword(s):  
Price Increase ◽  
Brain Responses ◽  
Fmri Study

scholarly journals Brain Activation during Thoughts of One’s Own Death and Its Linear and Curvilinear Correlations with Fear of Death in Elderly Individuals: An fMRI Study

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Kanan Hirano ◽  
Kentaro Oba ◽  
Toshiki Saito ◽  
Shohei Yamazaki ◽  
Ryuta Kawashima ◽  
...  
Keyword(s):  
Brain Activation ◽  
Posterior Cingulate Cortex ◽  
Fear Of Death ◽  
Supramarginal Gyrus ◽  
Brain Responses ◽  
Fmri Study ◽  
Negative Linear Correlation ◽  
The Right ◽  
Older Populations ◽  
Existential Issues

Abstract Facing one’s own death and managing the fear of death are important existential issues, particularly in older populations. Although recent functional magnetic resonance imaging (fMRI) studies have investigated brain responses to death-related stimuli, none has examined whether this brain activation was specific to one’s own death or how it was related to dispositional fear of death. In this study, during fMRI, 34 elderly participants (aged, 60–72 years) were presented with either death-related or death-unrelated negative words and asked to evaluate the relevance of these words to the “self” or the “other.” The results showed that only the left supplementary motor area (SMA) was selectively activated during self-relevant judgments of death-related words. Regression analyses of the effect of fear of death on brain activation during death-related thoughts identified a significant negative linear correlation in the right supramarginal gyrus (SMG) and an inverted-U-shaped correlation in the posterior cingulate cortex (PCC) only during self-relevant judgments. Our results suggest potential involvement of the SMA in the existential aspect of thoughts of death. The distinct fear-of-death-dependent responses in the SMG and PCC may reflect fear-associated distancing of the physical self and the processing of death-related thoughts as a self-relevant future agenda, respectively.

scholarly journals Vibration Induces BAFF Overexpression and Aberrant O-Glycosylation of IgA1 in Cultured Human Tonsillar Mononuclear Cells in IgA Nephropathy

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Muyao Ye ◽  
Youming Peng ◽  
Chan Liu ◽  
Wenzhe Yan ◽  
Xiaofei Peng ◽  
...  
Keyword(s):  
Iga Nephropathy ◽  
Cell Activation ◽  
Mononuclear Cells ◽  
Control Group ◽  
B Cell Activation ◽  
Vibratory Stimulation ◽  
Group A ◽  
Stimulation Of ◽  
Group 1

Objective. To investigate the influence ofin vitrovibratory stimulation of human tonsillar mononuclear cells (TMCs).Methods. Fourteen IgA nephropathy (IgAN) patients with chronic tonsillitis (CT) and 12 CT patients with no renal pathology were enrolled. Group A TMCs were collected after 24 hours of culture and used to determine baseline levels. TMCs in groups B, C, D, E, and F were exposed to vibratory stimulation (60 Hz) for 0 (as the control group), 1, 3, 5, and 10 minutes, respectively.Results. Baseline concentrations of B-cell-activation factor (BAFF) and IgA1, BAFF mRNA expression, and aberrant O-glycosylation IgA1 level were higher in the IgAN group as compared to that in the CT group, and all increased after vibratory stimulation. Baseline mRNA expressions of coreβ1,3-galactosyltransferase (C1GALT1) and coreβ1,3GalT-specific molecular chaperone (Cosmc) were lower in the IgAN group; the levels decreased further after vibratory stimulation.Conclusion. In patients with IgAN, vibratory stimulation of TMCs appears to induce IgA1 secretion through activation of BAFF release and to aberrant O-glycosylation IgA1 by suppressing C1GALT1 and Cosmc expression.In vitrovibratory stimulation of human TMCs mimics the vibratory simulation of palatine tonsils produced by vocal cords during phonation.

Alternate rhythmic vibratory stimulation of trunk muscles affects walking cadence and velocity in Parkinson’s disease

2010 ◽  
Vol 121 (2) ◽  
pp. 240-247 ◽  
Author(s):  
Alessandro M. De Nunzio ◽  
Margherita Grasso ◽  
Antonio Nardone ◽  
Marco Godi ◽  
Marco Schieppati
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Trunk Muscles ◽  
Vibratory Stimulation ◽  
Stimulation Of

Sex Differences in Brain Responses to Stress and Alcohol Cue Imagery: an fMRI Study

NeuroImage ◽  
2009 ◽  
Vol 47 ◽  
pp. S192
Author(s):  
Z Jia ◽  
C Lacadie ◽  
A Hong ◽  
S Huq ◽  
KT Bergquist ◽  
...  
Keyword(s):  
Sex Differences ◽  
Brain Responses ◽  
Fmri Study

scholarly journals A Non-Invasive Medical Device for Parkinson’s Patients with Episodes of Freezing of Gait

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 737 ◽  
Author(s):  
Catalina Punin ◽  
Boris Barzallo ◽  
Roger Clotet ◽  
Alexander Bermeo ◽  
Marco Bravo ◽  
...  
Keyword(s):  
Wavelet Transform ◽  
Mobile Application ◽  
Low Cost ◽  
Freezing Of Gait ◽  
Discrete Wavelet ◽  
Vibratory Stimulation ◽  
Non Invasive ◽  
Sensitivity Specificity ◽  
Gait Monitoring ◽  
Stimulation Of

A critical symptom of Parkinson’s disease (PD) is the occurrence of Freezing of Gait (FOG), an episodic disorder that causes frequent falls and consequential injuries in PD patients. There are various auditory, visual, tactile, and other types of stimulation interventions that can be used to induce PD patients to escape FOG episodes. In this article, we describe a low cost wearable system for non-invasive gait monitoring and external delivery of superficial vibratory stimulation to the lower extremities triggered by FOG episodes. The intended purpose is to reduce the duration of the FOG episode, thus allowing prompt resumption of gait to prevent major injuries. The system, based on an Android mobile application, uses a tri-axial accelerometer device for gait data acquisition. Gathered data is processed via a discrete wavelet transform-based algorithm that precisely detects FOG episodes in real time. Detection activates external vibratory stimulation of the legs to reduce FOG time. The integration of detection and stimulation in one low cost device is the chief novel contribution of this work. We present analyses of sensitivity, specificity and effectiveness of the proposed system to validate its usefulness.

Sign in / Sign up

Export Citation Format

Share Document