scholarly journals Design and Development of GSR Biofeedback Device

2021 ◽  
Vol 4 (2) ◽  
pp. 1
Author(s):  
Maryam Hashemi
Keyword(s):  
Blood Pressure ◽  
Muscle Contraction ◽  
Galvanic Skin Response ◽  
Design And Development ◽  
Audio Feedback ◽  
Skin Response ◽  
Long Time ◽  
Biofeedback Device

It has been a long time that human is interested in learning how to control involuntary actions such as heartbeat, blood pressure, breathing, etc., so a lot of research has been done on this issue so far. One of the methods using in this field is biofeedback, in which someone can roughly control an involuntary action or having better control over some voluntary actions such as muscle contraction through some visual or audio feedback from those actions. This study is to design and development of one biofeedback instrument, which is GSR (Galvanic Skin Response), and examine some signals that have been taken by this device.

A Review of the Therapeutic Benefits of Moringa oleifera in Controlling High Blood Pressure (Hypertension)

2019 ◽  
Vol 5 (3) ◽  
pp. 232-245
Author(s):  
Chuku Okorie ◽  
Kola Ajibesin ◽  
Adekunle Sanyaolu ◽  
Adeena Islam ◽  
Selciya Lamech ◽  
...  
Keyword(s):  
Blood Pressure ◽  
High Blood Pressure ◽  
Moringa Oleifera ◽  
Kidney Diseases ◽  
Treatment Strategies ◽  
Secondary Hypertension ◽  
Therapeutic Benefits ◽  
Northern Regions ◽  
Long Time ◽  
Life Threatening

Moringa oleifera (M. oleifera) is an angiosperm plant that is a member of the Moringaceae family. It is a natural plant that is native to the sub-Himalayan northern regions of India, Bangladesh, Pakistan, and Afghanistan. The plant grows abundantly throughout tropical and subtropical areas of the world. For several centuries, many cultures have utilized various parts of the moringa plant as traditional medicine to treat common illnesses and control life-threatening conditions such as hypertension (HTN), diabetes, hyperlipidemia, inflammation, etc. This article reviewed the current literature on the therapeutic benefits of M. oleifera on hypertension, primarily focusing on identifying the plant’s key components and its roles in hindering the common pathophysiological pathways associated with hypertension. The number of people living with HTN has been predicted to increase to 1.56 billion worldwide by 2025 in spite of the myriads of preventive and treatment strategies available today. Therefore, it would be of great value to explore alternative complementary ways of controlling high blood pressure. HTN is commonly defined as blood pressure equal to or higher than 140/90 mm Hg. HTN itself is not a disease condition and does not elicit specific symptoms, however, if left untreated for a long time, it can lead to complicated cardiovascular diseases such as angina, congestive heart failure, myocardial infarction as well as stroke and chronic kidney diseases. Primary hypertension is diagnosed when there is no known identifiable underlying cause for the onset of the condition. Secondary hypertension is diagnosed when there is evidence of a disease or disorder triggering the onset of the condition. It is apparent that understanding the role of M. oleifera in the management of hypertension would expand the valuable strategies for the control of this condition.

scholarly journals Physiological and Psychological Effects of Watching Videos of Different Durations Showing Urban Bamboo Forests with Varied Structures

2020 ◽  
Vol 17 (10) ◽  
pp. 3434
Author(s):  
Yuqian Wang ◽  
Mingyan Jiang ◽  
Yinshu Huang ◽  
Zhiyi Sheng ◽  
Xiao Huang ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Skin Conductance ◽  
Human Body ◽  
Stable State ◽  
Mean Value ◽  
Psychological Effects ◽  
Physiological Indicators ◽  
Psychological Indicators ◽  
Before And After ◽  
Long Time

This study illustrated the physiological and psychological effects of watching videos of different durations showing bamboo forests with varied structures. Physiological indicators, including EEG (electroencephalogram), blood pressure, skin conductance, and pulse, were monitored in 180 Chinese university students (mean age: 20.72 ± 2.56 years) while they were watching bamboo videos. Before and after watching the videos, their psychological indicators, including positive and negative moods, were measured using the Profile of Mood States questionnaire. After watching the bamboo videos of different durations, all of the physiological indicators responded to the stimulation after only 1 min. The indicators showed different trends at 1, 3 and 5 min. EEG decreased and then was maintained at a stable level after 1 min, and the high β, low β, and α waves had no significant differences between 1, 3 and 5 min. Blood pressure dropped to a stable state after 3 min, and the decline was significantly different greater after 3 min than after 1 min. Skin conductance increased for 1 to 5 min, and it did not stabilize after a long time (5 min). Pulse decreased after 1 min but increased after 5 min. After watching the videos with bamboo of varying structures, the physiological and psychological indicators showed significantly different changes. Skin conductance significantly increased (mean value: 6.78%), and the amount of sweat was more effectively reduced, thereby reducing tension, when the students viewed videos of sympodial bamboo forests compared with monopodial bamboo forests. Bamboo forests with a higher canopy density (0.83–0.85) could significantly decrease α waves (mean value: 1.50 Hz), relaxing the human body. High β and low β waves showed greater decreases, with tension reduced more effectively, when bamboo forests with a low tilt ratio (< 1.5%) were viewed. Bamboo forests with neat undergrowth could have more beneficial physiological and psychological effects on the human body.

User Stress Modeling through Galvanic Skin Response

2021 ◽  
Author(s):  
Fahad Ahmed Satti ◽  
Musarrat Hussain ◽  
Jamil Hussain ◽  
Tae-Seong Kim ◽  
Sungyoung Lee ◽  
...  
Keyword(s):  
Galvanic Skin Response ◽  
Stress Modeling ◽  
Skin Response
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