Cardiorespiratory Patterns Characterize Emotions Across Elicitation Contexts Público
Wilson, Jennifer Strafford (2009)
Abstract
Abstract
Cardiorespiratory Patterns Characterize Emotions Across Elicitation
Contexts
By Jennifer S. Wilson
Emotion-specific physiological activity is a central element of
theories of discrete or basic emotions.
Previous studies provide partial support for this proposal,
suggesting that participants' autonomic physiological
responses during emotion induction differ based on the induced
emotion. Patterns of physiological activity that
differentiate emotions consistently across multiple contexts have
not yet been identified. This study investigated the
extent to which anger, fear, disgust, happiness, and sadness could
be discriminated on the basis of cardiorespiratory
activity within two experimental contexts. Electrocardiogram,
impedance cardiogram, and respiratory activity was
recorded while participants recalled emotional and neutral
experiences from the past, and watched film clips designed
to elicit the target emotions and a neutral state. Dependent
cardiovascular measures included heart rate, heart rate
variability, respiration rate and amplitude, and respiration-linked
heart rate variability. Participants' subjective ratings
of their emotional responses indicated that both recollection and
film clips elicited strong emotional responses
consistent with the targeted emotion category. Univariate and
multivariate ANOVAs evaluating the effect of emotion
on cardiorespiratory responses indicated strong effects of emotion
on respiration frequency, and unexpectedly smaller
effects on heart rate and heart rate variability, in both film and
recall conditions. Principal components analysis reduced
the dependent variables to components reflecting, respectively,
respiratory frequency, heart rate, heart rate variability,
and respiratory amplitude. The effect of emotion on the pattern of
components observed for each emotion type was
tested using MANOVA, which revealed significant increases along the
respiration component in Happiness and Fear
relative to Disgust in the emotional recall condition. No
significant effects of emotion were observed in the film
condition. Stepwise discriminant analyses then tested the
possibility of discriminating emotions in the emotional
recall
condition, based on the pattern of cardiorespiratory components
observed for each emotion type. A discriminant
function based on the respiration component allowed emotion
classification at an overall correct rate of 30.7%
(compared to a 20% rate at chance performance). These findings
point to core cardiorespiratory responses for each
emotion type that remain constant across several contexts of
elicitation; however, findings also highlight the influence
of non-emotional contextual effects on responses to
emotion-inducting stimuli.
Table of Contents
Table of Contents
Introduction……………………………………………………………………………..............................
1
Methods…………………..……………………………………………………………............................... 10
Participants……………….……………………………………………...................................
10
Stimuli used for emotion
induction………………………………..............................
10
Ratings of emotional experience
………………………………................................
12
Procedures…..………………………………………………………………..............................
12
Physiological
recording…..……………………………………………..............................
18
Behavioral data
analysis………………………………………………..............................
18
Psychophysiological data
analysis………………………………...............................
18
Results……………………..……………………………………………….………................................. 22
Subjective ratings of emotion
experience…….……………..............................
22
Physiological responses:
Univariate tests of Emotion
effects……………….…..............................
22
Principal components and
multivariate tests of Emotion
effects………… 24
Pattern
classification…………………………………………..............................
25
Discussion………………………………………………….…………………………............................... 26
Interpretation of
findings……………………….………..………................................
26
Limitations…………………………………………..…...………………...............................
29
Contributions and future
directions………..…………………..............................
31
Conclusion……………………………………………..…………………................................
32
References.…………………………………………………………………....……..............................
33
About this Master's Thesis
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Primary PDF
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Cardiorespiratory Patterns Characterize Emotions Across Elicitation Contexts () | 2018-08-28 15:22:40 -0400 |
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Supplemental Files
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Appendix 2- Autobiographical Form.doc () | 2018-08-28 15:22:51 -0400 |
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Appendix1- Film clips & ratings - citation.doc () | 2018-08-28 15:22:55 -0400 |
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