scholarly journals Short Term Effect of Virtual Reality Headset on Blink Rate and Inter-Blink Interval

2020 ◽  
Vol 4 (1) ◽  
pp. 47-51
Author(s):  
Mohd Zulfaezal Che Azemin ◽  
Keyword(s):  
Virtual Reality ◽  
Virtual World ◽  
Term Effect ◽  
Blink Rate ◽  
Short Term ◽  
Gaming Industry ◽  
3 Dimensional ◽  
Short Term Effect ◽  
Before And After ◽  
3D Movie

Virtual reality (VR) headsets are becoming remarkably well-known nowadays, especially in gaming industry. Their ability to immerse users into virtual world makes them captivating. However, there is limited research about the impacts of this technology on our eyes and vision. This study investigated if there is any effect on blink rate (BR) and inter-blink interval (IBI) after 30 minutes of watching 3-dimensional (3D) movie on VR. Besides, this study compares between watching 3D movie on VR headset and 2D movie on laptop. Blinks were recorded over 1 minutes for 32 participants volunteered in this study before and after 30 minutes of watching 3D movie on VR headset and 2D movie on laptop. The result of BR and IBI between pre- and post-watching 3D movie on VR was not significant (p= >0.05). The result between watching movie on laptop and VR also not significant (p= >0.05). Watching 3D movie on VR for 30 minutes resulted in no effects on blink rate and inter-blink interval of the users.

scholarly journals Short Term Effect of Virtual Reality on Eye Accommodative Ability

2020 ◽  
Vol 4 (1) ◽  
pp. 35-39
Author(s):  
Mohd Zulfaezal Che Azemin ◽  
Keyword(s):  
Virtual Reality ◽  
Three Dimensional ◽  
Term Effect ◽  
Control Group ◽  
Two Dimensional ◽  
Short Term ◽  
The World ◽  
Before And After ◽  
3D Movie ◽  
Harmful Effects

Virtual reality (VR) is a fast-growing technology in the world today. Many countries use virtual reality for many purposes such as education, military and entertainment. Despite the benefits of VR, harmful effects of VR on the users are still inconclusive. With only a few reliable studies that investigate the effect of virtual reality on the users especially on the eyes, yet still there are a lot more things we do not know about the effects of VR. The purpose of this study was to compare the amplitude of accommodation before and after watching 3-dimesional (3D) movie utilizing VR and notebook (control group). Thirty-two participants volunteered in this study and all participants underwent amplitude of accommodation (AA) test using Royal Army Force (RAF) rule before and after watching three-dimensional (3D) movie for 30 minutes using VR and two-dimensional (2D) movie by laptop. The amplitude of accommodation between pre- and post-watching 3D movie on VR was insignificantly changed (p= >0.05). The similar trend was also found after 30 minutes watching movie using laptop (p= >0.05). The utilization of VR and laptop for 30 minutes did insignificantly alter the eye accommodation.

scholarly journals Short-term effect of ovariohysterectomy on urine serotonin, cortisol, testosterone and progesterone in bitches

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Eva Hydbring-Sandberg ◽  
Elin Larsson ◽  
Andrzej Madej ◽  
Odd Viking Höglund
Keyword(s):  
Term Effect ◽  
Urine Samples ◽  
Short Term ◽  
Positive Correlation ◽  
Short Term Effect ◽  
Before And After ◽  
Urine Levels ◽  
Concentration Ratios

Abstract Objective This study aimed to investigate the short-term effect of ovariohysterectomy on urine levels of serotonin and its relation to levels of cortisol, testosterone and progesterone in female dogs. Seven bitches were studied before surgical ovariohysterectomy and then once a week during 4 weeks. Spontaneously voided urine samples were collected and concentration ratios of hormone/creatinine in urine were analysed. Results The bitches had significantly lower levels of cortisol, testosterone, and progesterone 1 week after ovariohysterectomy compared with before and the levels stayed low throughout the study (P ≤ 0.05). Interestingly, serotonin levels tended to increase 4 weeks after surgery (P = 0.08). A positive correlation between cortisol and progesterone was found before and after surgery. After surgery, serotonin was positively correlated with cortisol and progesterone (P ≤ 0.05).

Short term effect of hubble-bubble smoking on voice

2011 ◽  
Vol 125 (5) ◽  
pp. 486-491 ◽  
Author(s):  
A-L Hamdan ◽  
A Sibai ◽  
L Mahfoud ◽  
D Oubari ◽  
J Ashkar ◽  
...  
Keyword(s):  
Cigarette Smoking ◽  
Prospective Study ◽  
Vocal Fold ◽  
Acoustic Analysis ◽  
Vocal Folds ◽  
Term Effect ◽  
Short Term ◽  
Short Term Effect ◽  
Before And After ◽  
History Of

AbstractObjective:To investigate the short term effect of hubble-bubble smoking on voice.Study design:Prospective study.Material:Eighteen non-dysphonic subjects (seven men and 11 women) with a history of hubble-bubble smoking and no history of cigarette smoking underwent acoustic analysis and laryngeal video-stroboscopic examination before and 30 minutes after hubble-bubble smoking.Results:On laryngeal video-stroboscopy, none of the subjects had vocal fold erythema either before or after smoking. Five patients had mild vocal fold oedema both before and after smoking. After smoking, there was a slight increase in the number of subjects with thick mucus between the vocal folds (six, vs four before smoking) and with vocal fold vessel dilation (two, vs one before smoking). Acoustic analysis indicated a drop in habitual pitch, fundamental frequency and voice turbulence index after smoking, and an increase in noise-to-harmonics ratio.Conclusion:Even 30 minutes of hubble-bubble smoking can cause a drop in vocal pitch and an increase in laryngeal secretions and vocal fold vasodilation.

scholarly journals Network meta-analysis of short-term effects of different strategies in the conservative treatment of AIS

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Kepeng Li ◽  
Jun Miao ◽  
Jingan Zhang
Keyword(s):  
Adolescent Idiopathic Scoliosis ◽  
Idiopathic Scoliosis ◽  
Meta Analysis ◽  
Relevant Literature ◽  
Term Effect ◽  
Short Term ◽  
Short Term Effect ◽  
Before And After ◽  
Better Than ◽  
Short Term Effects

Abstract Purpose To evaluate the short-term effects of different conservative treatments on in adolescent idiopathic scoliosis. Methods By searching the relevant literature of adolescent idiopathic scoliosis, the curative effects of the three regimens of bracing therapy combined with scoliosis-specific exercises, simple treatment with brace and simple scoliosis-specific exercises were compared. Review manager 5.3, Stata MP16 and Network software packages were used for Reticular Meta-analysis of Cobb’s angles before and after treatment. Results A total of 364 patients were included in four clinical studies. Reticular meta-analysis showed that the short-term effect of bracing treatment combined with scoliosis-specific exercises was better than that of treatment with brace and scoliosis-specific exercises, with effects of 2.71(95% CI 0.83–4.58) and 3.67(95% CI 1.21–6.14), respectively. There was no statistical difference between simple bracing therapy and scoliosis-specific exercises. Conclusion Among the three common conservative treatments of adolescent idiopathic scoliosis, the short-term effect of bracing treatment combined with scoliosis-specific exercises is better than that of bracing treatment or scoliosis-specific exercises.

A Newspaper’s Effect on the Strength of Automatic Associations in Memory

2012 ◽  
Vol 24 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Florian Arendt
Keyword(s):  
Treatment Group ◽  
Term Effect ◽  
Control Group ◽  
Implicit Measure ◽  
Short Term ◽  
Short Term Treatment ◽  
Short Term Effect ◽  
Automatic Associations ◽  
Foreign Nationality ◽  
The Impact

A test was done to see if reading a newspaper which consistently overrepresents foreigners as criminals strengthens the automatic association between foreign country and criminal in memory (i.e., implicit cultivation). Further, an investigation was done to find out if reading articles from the same newspaper produces a short-term effect on the same measure and if (1) emotionalization of the newspaper texts, (2) emotional reactions of the reader (indicated by arousal), and (3) attributed text credibility moderate the short-term treatment effect. Eighty-five participants were assigned to one of three experimental conditions. Participants in the control group received short factual crime texts, where the nationality of the offender was not mentioned. Participants in the factual treatment group received the same texts, but the foreign nationality was mentioned. Participants in the emotionalized treatment group received emotionalized articles (i.e., texts which are high in vividness and frequency) covering the same crimes, with the foreign nationality mentioned. Supporting empirical evidence for implicit cultivation and a short-term effect was found. However, only emotionalized articles produced a short-term effect on the strength of the automatic association, indicating that newspaper texts must have a minimum of stimulus intensity to overcome an effect threshold. There were no moderating effects of arousal or credibility pertaining to the impact on the implicit measure. However, credibility moderated the short-term effect on a first-order judgment (i.e., estimated frequency of foreigners of all criminals). This indicates that a newspaper’s effect on the strength of automatic associations is relatively independent from processes of propositional reasoning.

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