Frontal EEG asymmetry and skin conductance responses in lonely and non-lonely individuals to happy and neutral faces of another person

Yksinäisyys on epämiellyttävä tila, jonka aiheuttamat negatiiviset tunteet aktivoivat yksilön motivationaalisia, käytöksellisiä ja kognitiivisia prosesseja. Yksinäisyys saa aikaan motivaation lähestyä uudelleen toisia ihmisiä, joka johtaa osallistavien vihjeiden etsimiseen ja sosiaalisten ärsykkeide...

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Main Author: Mattila, Katri
Other Authors: Kasvatustieteiden ja psykologian tiedekunta, Faculty of Education and Psychology, Psykologian laitos, Department of Psychology, Jyväskylän yliopisto, University of Jyväskylä
Format: Master's thesis
Language:eng
Published: 2023
Subjects:
Online Access: https://jyx.jyu.fi/handle/123456789/89696
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author Mattila, Katri
author2 Kasvatustieteiden ja psykologian tiedekunta Faculty of Education and Psychology Psykologian laitos Department of Psychology Jyväskylän yliopisto University of Jyväskylä
author_facet Mattila, Katri Kasvatustieteiden ja psykologian tiedekunta Faculty of Education and Psychology Psykologian laitos Department of Psychology Jyväskylän yliopisto University of Jyväskylä Mattila, Katri Kasvatustieteiden ja psykologian tiedekunta Faculty of Education and Psychology Psykologian laitos Department of Psychology Jyväskylän yliopisto University of Jyväskylä
author_sort Mattila, Katri
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description Yksinäisyys on epämiellyttävä tila, jonka aiheuttamat negatiiviset tunteet aktivoivat yksilön motivationaalisia, käytöksellisiä ja kognitiivisia prosesseja. Yksinäisyys saa aikaan motivaation lähestyä uudelleen toisia ihmisiä, joka johtaa osallistavien vihjeiden etsimiseen ja sosiaalisten ärsykkeiden lähestymiseen. Toisaalta yksinäisyys vaikuttaa yksilön kognitiivisiin prosesseihin ja voi aiheuttaa negatiivista vinoumaa sosiaalisten vihjeiden tulkinnassa ja tätä kautta johtaa vuorovaikutuksen välttämiseen. Toisen henkilön kasvojen ilmeet ovat merkityksellisiä sosiaalisia vihjeitä, sillä ne viestivät sosiaalisista aikomuksista ja tunteista – tekijöistä, joiden havaitseminen vaikuttaa motivaatioon lähestyä tai välttää kyseistä henkilöä. Tässä tutkimuksessa tutkittiin yksinäisten ja ei-yksinäisten tutkittavien psykofysiologisia reaktioita toisen henkilön iloiseen ja neutraaliin ilmeeseen. Autonomisen hermoston viriämisen vasteita mitattiin ihon sähkönjohtavuuden mittareilla ja motivationaalisia taipumuksia arvioitiin EEG asymmetrian avulla. Näiden psykofysiologisten vasteiden odotettiin selittävän tutkittavien automaattisia reaktioita kasvojen ilmeiden ilmaiseviin sosiaalisiin vihjeisiin, joita yksinäiset ja ei-yksinäiset henkilöt saattavat prosessoida eri tavoin. Ihon sähkönjohtavuuden vasteet iloisiin kasvoihin olivat yksinäisillä sekä ei-yksinäisillä tutkittavilla korkeammat kuin neutraaleihin kasvoihin. Korkeampi autonominen viriäminen vastavuoroisessa vuorovaikutustilanteessa iloiseen verrattuna neutraaliin ilmeeseen voi ilmentää positiivisesti vaikuttavan emotionaalis-motivationaalisen vasteen voimakkuutta. Nämä vasteet olivat yksinäisillä vaimeampia ei-yksinäisiin verrattuna, joka heijastaa mahdollista negatiivista kognitiivista vinoumaa sosiaalisten ärsykkeiden tulkinnassa. Tässä tutkimuksessa ei havaittu iloisten ja neutraalien kasvojen ilmeiden tai yksinäisyyden vaikutusta frontaaliseen EEG alfa-asymmetriaan. Lisätutkimusta tarvitaan sen selvittämiseksi, voivatko kasvojen ilmeet moduloida yksinäisten ja ei-yksinäisten henkilöiden motivationaalisia taipumuksia EEG alfa-asymmetrialla mitattuna. Loneliness is an aversive signal that activates motivational, behavioral, and cognitive processes to resolve the negative emotions and outcomes it causes. The motivation to reaffiliate with others leads to seeking inclusive cues and approaching social stimuli. However, loneliness influences cognitive processes and may cause a negatively biased evaluation of social cues and lead to avoiding interaction instead. Facial expressions of another person are relevant social cues because they signal social intentions and emotions – the factors that influence the motivation to approach or avoid that person. The present study investigated the psychophysiological responses of lonely and non-lonely individuals to the facial expressions of a happy and a neutral face. Skin conductance responses (SCRs) were examined to explain autonomic sympathetic arousal and frontal EEG alpha asymmetry to indicate motivational tendencies. These psychophysiological responses were expected to explain automatic reactions to social cues indicated by facial expressions, which lonely and non-lonely individuals may process differently. Skin conductance responses were higher to a happy versus a neutral face for both groups. It demonstrates that reciprocal interaction with another person with a happy face elicits stronger autonomic arousal than a neutral face, which may indicate the intensity of a positively affected emotional-motivational response. The results showed that the SCRs were suppressed for lonely participants compared to non-lonely, reflecting the possible negative cognitive bias toward the social stimuli. However, the present study did not find influences of a happy versus a neutral face or modulating effects of loneliness on frontal alpha asymmetry. Further investigation is needed to determine whether facial expressions can modulate the frontal EEG alpha asymmetry of lonely and non-lonely individuals to show differences in their motivational tendencies.
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Yksin\u00e4isyys saa aikaan motivaation l\u00e4hesty\u00e4 uudelleen toisia ihmisi\u00e4, joka johtaa osallistavien vihjeiden etsimiseen ja sosiaalisten \u00e4rsykkeiden l\u00e4hestymiseen. Toisaalta yksin\u00e4isyys vaikuttaa yksil\u00f6n kognitiivisiin prosesseihin ja voi aiheuttaa negatiivista vinoumaa sosiaalisten vihjeiden tulkinnassa ja t\u00e4t\u00e4 kautta johtaa vuorovaikutuksen v\u00e4ltt\u00e4miseen. Toisen henkil\u00f6n kasvojen ilmeet ovat merkityksellisi\u00e4 sosiaalisia vihjeit\u00e4, sill\u00e4 ne viestiv\u00e4t sosiaalisista aikomuksista ja tunteista \u2013 tekij\u00f6ist\u00e4, joiden havaitseminen vaikuttaa motivaatioon l\u00e4hesty\u00e4 tai v\u00e4ltt\u00e4\u00e4 kyseist\u00e4 henkil\u00f6\u00e4.\nT\u00e4ss\u00e4 tutkimuksessa tutkittiin yksin\u00e4isten ja ei-yksin\u00e4isten tutkittavien psykofysiologisia reaktioita toisen henkil\u00f6n iloiseen ja neutraaliin ilmeeseen. 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spellingShingle Mattila, Katri Frontal EEG asymmetry and skin conductance responses in lonely and non-lonely individuals to happy and neutral faces of another person skin conductance autonomic arousal social cognition approach-avoidance motivation Psykologia Psychology 202 EEG yksinäisyys ilmeet asymmetria loneliness facial expressions asymmetry
title Frontal EEG asymmetry and skin conductance responses in lonely and non-lonely individuals to happy and neutral faces of another person
title_full Frontal EEG asymmetry and skin conductance responses in lonely and non-lonely individuals to happy and neutral faces of another person
title_fullStr Frontal EEG asymmetry and skin conductance responses in lonely and non-lonely individuals to happy and neutral faces of another person Frontal EEG asymmetry and skin conductance responses in lonely and non-lonely individuals to happy and neutral faces of another person
title_full_unstemmed Frontal EEG asymmetry and skin conductance responses in lonely and non-lonely individuals to happy and neutral faces of another person Frontal EEG asymmetry and skin conductance responses in lonely and non-lonely individuals to happy and neutral faces of another person
title_short Frontal EEG asymmetry and skin conductance responses in lonely and non-lonely individuals to happy and neutral faces of another person
title_sort frontal eeg asymmetry and skin conductance responses in lonely and non lonely individuals to happy and neutral faces of another person
title_txtP Frontal EEG asymmetry and skin conductance responses in lonely and non-lonely individuals to happy and neutral faces of another person
topic skin conductance autonomic arousal social cognition approach-avoidance motivation Psykologia Psychology 202 EEG yksinäisyys ilmeet asymmetria loneliness facial expressions asymmetry
topic_facet 202 EEG Psychology Psykologia approach-avoidance motivation asymmetria asymmetry autonomic arousal facial expressions ilmeet loneliness skin conductance social cognition yksinäisyys
url https://jyx.jyu.fi/handle/123456789/89696 http://www.urn.fi/URN:NBN:fi:jyu-202310115744
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