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The intra-individual relationship between self-reported valence and heart rate in a daily life setting

Peelen, Alicia (2019) The intra-individual relationship between self-reported valence and heart rate in a daily life setting.

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Abstract:Objectives. There is growing interest in how feelings are related to health. Scientists claim that feelings are related to heart rate (HR) and can therefore be an influencing factor on health. Studies show that the more pleasant or unpleasant feelings are, the higher is HR. Therefore, HR is assumed to be related to feelings. Nevertheless, only a limited number of studies investigated that psychophysiological relationship intra-individually, meaning instead of drawing conclusion from the group mean data using intra-individual correlations. Therefore, the present study investigates the intra-individual relationship between HR and self-reported valence and its consistency. Methods. In total 35 participants with an age ranging from 19 to 70 and either Dutch or German nationality participated within this study. The participants were asked to wear a biosensor measuring HR for seven days. Self-reported valence was measured with the aid of a smartphone application. For each individual intra-individual correlations were calculated. These correlations were split in two halves, the first time randomly and the second time into two time-based halves. This enables to make judgments about the consistency of the correlations. Findings. The correlations vary in strength and consistency. Nevertheless, those are neither consistent nor significant. There is no indication for a positive or negative relationship because there are as many positive as negative correlations. The differences among the correlations of the time-based split are higher, indicating a change during study period. Contradicting previous findings, it is concluded that HR is not related to self-reported valence. Discussion. Future studies should investigate a possible change in awareness of feelings as a possibly influencing factor to valence. The data of HR should be considered carefully as there is no correction of the effect of movement executed. Next to that, it is recommended to use eventbased sampling enabling gathering specific and accurate data of HR and self-reported valence.
Item Type:Essay (Bachelor)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:77 psychology
Programme:Psychology BSc (56604)
Link to this item:http://purl.utwente.nl/essays/77188
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