The effect of different auditory situations on cardiovascular changes when recovering from stress

Harrison, Jordan (2017) The effect of different auditory situations on cardiovascular changes when recovering from stress. Undergraduate thesis, University of Chichester.

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Abstract

Natural environments have been shown to facilitate recovery of a psychological stressor over an urban environment. This investigation explored what impact the natural and urban audio has on a stress recovery. The aim of this study is to investigate if natural environments have stress recovery properties that can be used in the treatment of stress. 8 male participants were exposed to a cross over design of three conditions; a neutral environment, natural audio environment and an urban audio environment. During testing, two physiological measures were taken, Heart Rate and Blood Pressure (BP) along with a psychological measure of Rate of Perceived Stress (RPS) which a visual analogue scale from 1-10, 1 being not stressed at all and 10 being extremely stressed. The test involved three phases. The first being a resting phase that allowed for Heart rate and BP to level out to the individuals resting value, 10 minutes in duration. The second phase was a psychological stressor, the use of a bespoke cognitive math task was determined adequate after research, 2 minutes in duration. The third and final phase was a recovery phase, this was when participants were exposed to the three auditory environment conditions, 10 minutes in duration. BP and RPS were taken at 5 minutes into the resting period, BP was taken two questions into the math task whilst RPS was taken at the end of it, and BP and RPS were taken 5 minutes into the recovery phase. Heart rate was retrieved post testing using MATLAB® Kubios HRV 2.0 software. Data analysis of heart rate, Systolic BP, Diastolic BP and RPS were performed using IBM® SPSS Statistics 20, with a significance value of p = <.05, however,data falling short of .05 will be investigated further if under .07. Results indicated significant differences in the physiological measures of heart rate overtime (FLI7= 5.028, P=.060) within the neutral (R7=3.142, p=.016) and urban audio conditions (t7=3.767, p=.007), as well as within diastolic BP (Fli7=8.974, P=0.02) for the neutral (F7=3.284, P=0.13). Whilst the psychological measure of RPS exposed a significant difference within time (FLI7=33.923, P=.001) and the interaction (F2,14=7.255, p=.007) for neutral (F7=6.148, P=<0.0005) and natural conditions (f7=5.401, P=.001). In conclusion, exposure to natural audio recordings following a psychological stressor decreased heart rate significantly within an urban condition whereas diastolic BP decreased significantly within the neutral condition. No significant effects were indicated during post analysis for systolic BP, (F,.7= 3.839, P=.091) for time, within conditions (F2i14=.073, p=.930) and the interaction (F2i14=.001, p=.999). Results support findings that natural environments aid psychologically in stress recovery post stressor, whilst analysis indicated a physical decrease in participant's recovery was significant for the urban condition for heart rate. This means that research can be used for individuals who are suffering from stress disorders such as Post-traumatic Stress Disorder (PTSD) along with the NHS who could incorporate natural audio recordings in waiting rooms and possibly post-operation wards.

Item Type: Thesis (Undergraduate)
Additional Information: BA (Hons) Adventure Education
Subjects: B Philosophy. Psychology. Religion > BF Psychology
G Geography. Anthropology. Recreation > GV Recreation Leisure
L Education > L Education (General)
Q Science > QP Physiology
Divisions: Departments > Adventure Education
Undergraduate Dissertations
Depositing User: Ann Jones
Date Deposited: 14 Dec 2017 11:26
Last Modified: 11 Apr 2018 14:37
URI: http://eprints.chi.ac.uk/id/eprint/3191

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