Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Faculty of Health and Social Sciences | en_US |
| dc.contributor.advisor | Tam, Eric (BME) | - |
| dc.contributor.advisor | Chung, Joanne (SN) | - |
| dc.contributor.advisor | Wong, Thomas (SN) | - |
| dc.creator | Chow, Pik Kei | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/10426 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | - |
| dc.rights | All rights reserved | en_US |
| dc.title | Is heart rate variability associated with emotional response to external stimulation? | en_US |
| dcterms.abstract | The study used a prospective, exploratory correlational study. A two-group pretest-posttest design to investigate the relationship between emotion and heart rate variability (HRV). A total of 77 subjects (17 males and 60 females), aged between 18 and 29 years old, were recruited and randomly assigned to positive and negative video groups. The Chinese version of the Positive and Negative Affects Schedule (PANAS) and Chinese State-Trait Anxiety Inventory (C-STAI) were adopted to obtain the emotional affects and anxiety levels. The Electrocardiographic (ECG) data were obtained to extract HRV parameters. Based on power spectrum analysis, parameters for low frequency (LF), high frequency (HF), LF/HF ratio, and total power (TP) were extracted. Data were analyzed using the Statistical Package for the Social Sciences version 25. Descriptive statistics including demographic characteristics, results of the Chinese version of PANAS and C-STAI, emotional intensity scores, and the HRV parameters were reported. A paired t-test was used to measure the difference in state anxiety before and after watching the emotion-eliciting video. Repeated-measures analysis of variance (ANOVA) was conducted to assess within-subject changes in the HRV parameters. Correlation analysis was used to reveal the relationships between the subjects' baseline HRV parameters and their HRV parameters while watching the emotion-eliciting video and to determine the intensity of these relationships. The significance level (alpha) was set at p < 0.05. | en_US |
| dcterms.abstract | The subjects in the positive video group exhibited a significant decrease in state anxiety after watching the emotion-eliciting video (p < 0.01), together with a significant decrease in the standard deviation of normal-to-normal intervals (SDNN) while watching the video (p < 0.05). In the negative video group, the subjects exhibited a significant increase in state anxiety after video watching (p < 0.001) and a significant decrease in SDNN during video watching (p < 0.05). The results of ANOVA showed that there were significant differences in TF (p < 0.05), HF (p < 0.05), normalized High Frequency (HF n.u.) (p < 0.001) and normalized Low Frequency (LF n.u.) (p < 0.001) between before, during and after video watching in the negative video group. No significant differences were found in HRV parameters between before, during and after video watching in the positive video group. For the subjects in the positive video group, the arousal score was positively correlated with HF (r = 0.337, p < 0.05) during video watching and negatively correlated with HF (r = -0.318, p < 0.05) after video watching. In the negative video group, the arousal score was negatively correlated with TP (r = -0.384, p < 0.05), LF (r = -0.514, p < 0.01), LF n.u. (r = -0.426, p < 0.01), LF/HF ratio (r = -0.496, p < 0.01) and positively correlated with HF n.u. (r = 0.441, p < 0.01) after video watching. The results demonstrated that HRV is associated with emotional responses to external stimulation. The result can be used to aid in developing an objective method of detecting emotional response and increasing emotion awareness, hence promoting emotion regulation. | en_US |
| dcterms.extent | xviii, 146 pages : color illustrations | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2019 | en_US |
| dcterms.educationalLevel | DHSc | en_US |
| dcterms.educationalLevel | All Doctorate | en_US |
| dcterms.LCSH | Hong Kong Polytechnic University -- Dissertations | en_US |
| dcterms.LCSH | Heart beat | en_US |
| dcterms.LCSH | Heart -- Pathophysiology | en_US |
| dcterms.LCSH | Emotions | en_US |
| dcterms.accessRights | restricted access | en_US |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 991022378656903411.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 1.77 MB | Adobe PDF | View/Open |
Copyright Undertaking
As a bona fide Library user, I declare that:
- I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
- I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
- I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.
Please use this identifier to cite or link to this item:
https://theses.lib.polyu.edu.hk/handle/200/10426