21 research outputs found

    Physiological Foundations for Religious Experiences in Devotional Worship Practices with Music Using Heart Rate and Respiration Rate Analyses.

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    The present study investigates the psychophysiological activation patterns of religious experiences in worship practices using Heart Rate (HR) and Respiratory Rate (RR) analyses. For this, 60 evangelical individuals participated in an experiment where they worshipped to six selected conditions and continuously indicated how strongly they sensed what they believed to be the presence of God. These ratings were correlated with the biometric data to indicate whether the experience has an activating effect on the believer's vegetative system (activation hypothesis) or a soothing effect thereupon (pacification hypothesis). Statistical analyses showed that the psychological disposition during the religious worship experience speeds up the physiological responses, which was indicated by increases in HR and RR. Hence, the activation hypothesis was accepted, and the pacification hypothesis was rejected

    Analysis of eye and head coordination in a visual peripheral recognition task

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    Coordinated eye and head movements simultaneously occur to scan the visual world for relevant targets. However, measuring both eye and head movements in experiments allowing natural head movements may be challenging. This paper provides an approach to study eye-head coordination: First, we demonstrate the capabilities and limits of the eye-head tracking system used, and compare it to other technologies. Second, a behavioral task is introduced to invoke eye-head coordination. Third, a method is introduced to reconstruct signal loss in video-based oculography caused by cornea reflection artifacts in order to extend the tracking range. Finally, parameters of eye-head coordination are identified using EHCA (eye-head co-ordination analyzer), a MATLAB software which was developed to analyze eye-head shifts. To demonstrate the capabilities of the approach, a study with 11 healthy subjects was performed to investigate motion behavior. The approach presented here is discussed as an instrument to explore eye-head coordination, which may lead to further insights into attentional and motor symptoms of certain neurological or psychiatric diseases, e.g., schizophrenia

    Emotions, Arousal, and Frontal Alpha Rhythm Asymmetry During Beethoven's 5th Symphony

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    Music is capable of inducing emotional arousal. While previous studies used brief musical excerpts to induce one specific emotion, the current study aimed to identify the physiological correlates of continuous changes in subjective emotional states while listening to a complete music piece. A total of 19 participants listened to the first movement of Ludwig van Beethoven's 5th symphony (duration: ~7.4min), during which a continuous 76-channel EEG was recorded. In a second session, the subjects evaluated their emotional arousal during the listening. A fast fourier transform was performed and covariance maps of spectral power were computed in association with the subjective arousal ratings. Subjective arousal ratings had good inter-individual correlations. Covariance maps showed a right-frontal suppression of lower alpha-band activity during high arousal. The results indicate that music is a powerful arousal-modulating stimulus. The temporal dynamics of the piece are well suited for sequential analysis, and could be necessary in helping unfold the full emotional power of musi

    Co-ordination of brain and heart oscillations during non-rapid eye movement sleep

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    Oscillatory activities of the brain and heart show a strong variation across wakefulness and sleep. Separate lines of research indicate that non‐rapid eye movement (NREM) sleep is characterised by electroencephalographic slow oscillations (SO), sleep spindles, and phase–amplitude coupling of these oscillations (SO–spindle coupling), as well as an increase in high‐frequency heart rate variability (HF‐HRV), reflecting enhanced parasympathetic activity. The present study aimed to investigate further the potential coordination between brain and heart oscillations during NREM sleep. Data were derived from one sleep laboratory night with polysomnographic monitoring in 45 healthy participants (22 male, 23 female; mean age 37 years). The associations between the strength (modulation index [MI]) and phase direction of SO–spindle coupling (circular measure) and HF‐HRV during NREM sleep were investigated using linear modelling. First, a significant SO–spindle coupling (MI) was observed for all participants during NREM sleep, with spindle peaks preferentially occurring during the SO upstate (phase direction). Second, linear model analyses of NREM sleep showed a significant relationship between the MI and HF‐HRV (F = 20.1, r (2) = 0.30, p < 0.001) and a tentative circular‐linear correlation between phase direction and HF‐HRV (F = 3.07, r (2) = 0.12, p = 0.056). We demonstrated a co‐ordination between SO–spindle phase–amplitude coupling and HF‐HRV during NREM sleep, presumably related to parallel central nervous and peripheral vegetative arousal systems regulation. Further investigating the fine‐graded co‐ordination of brain and heart oscillations might improve our understanding of the links between sleep and cardiovascular health

    Adolescent boys and girls with behavioral disorders in residential homes: A camera-glasses study

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    Kinder und Jugendliche mit massiven Verhaltensstörungen werden oft in Erziehungsheime fĂŒr sozial benachteiligte und verhaltensauffĂ€llige Jugendliche ĂŒberwiesen, in welchen abweichendes Verhalten behandelt und familiĂ€re Risikofaktoren korrigiert werden sollen. In der Studie wurden die Umwelten von acht Jugendlichen in Erziehungsheimen sowie einer Kontrollgruppe von vier nichtaggressiven Jugendlichen untersucht. Die Jugendlichen trugen Kamerabrillen, mit welchen sie ganze TagesverlĂ€ufe aufnahmen und so das Geschehen in den Lebensbereichen Familie, Schule, Freizeit und Erziehungsheim aus ihrer rĂ€umlichen Perspektive registrierten. Mit ergĂ€nzenden Methoden wurde zudem das Wahrnehmen und Erleben der Jugendlichen erfragt. Die Ergebnisse deuten darauf hin, dass die Heimjugendlichen im Vergleich zur Kontrollgruppe ĂŒber einen kleineren Streifraum verfĂŒgen, weniger bedeutsame Interaktionspartnerinnen bzw. Interaktionspartner haben und auch weniger mit Gleichaltrigen interagieren. Im Vergleich mit den Kontrolljugendlichen haben sie außerdem hĂ€ufiger Konflikte und sind öfters TĂ€terinnen oder TĂ€ter sowie auch Opfer von aggressiven Handlungen. (DIPF/Orig.)Children and adolescents with behavioral disorders are often referred to residential homes. These homes cater and treat socially disadvantaged adolescents with a history of deviant behavior. This study investigated the environment of eight adolescents in these residential homes and four non-aggressive adolescents living with their families. The daily activities were recorded by using cameraglasses attached to the subject. These activities took place in school, leisure time, family and residential homes. Other additional methods were used to investigate the perception and experience of these adolescents. The results of this study indicate that the adolescents in residential homes have a smaller living space in contrast to the non-aggressive adolescents. They also have less close relationships and fewer interactions with their peers. Moreover they have more conflicts and show more often aggressive behavior and they are more often victims of aggression. (DIPF/Orig.

    Impaired top-down modulation of saccadic latencies in patients with schizophrenia but not in first-degree relatives

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    Impaired eye movements have a long history in schizophrenia research and meet the criteria of a reliable biomarker. However, the effects of cognitive load and task difficulty on saccadic latencies (SL) are less understood. Recent studies showed that SL are strongly task dependent: SL are decreased in tasks with higher cognitive demand, and increased in tasks with lower cognitive demand. The present study investigates SL modulation in patients with schizophrenia and their first-degree relatives. A group of 13 patients suffering from ICD-10 schizophrenia, 10 first-degree relatives, and 24 control subjects performed two different types of visual tasks: a color task and a Landolt ring orientation task. We used video-based oculography to measure SL. We found that patients exhibited a similar unspecific SL pattern in the two different tasks, whereas controls and relatives exhibited 20–26% shorter average latencies in the orientation task (higher cognitive demand) compared to the color task (lower cognitive demand). Also, classification performance using support vector machines suggests that relatives should be assigned to the healthy controls and not to the patient group. Therefore, visual processing of different content does not modulate SL in patients with schizophrenia, but modulates SL in the relatives and healthy controls. The results reflect a specific oculomotor attentional dysfunction in patients with schizophrenia that is a potential state marker, possibly caused by impaired top-down disinhibition of the superior colliculus by frontal/prefrontal areas such as the frontal eye fields

    Aggression und soziale Interaktion im Erziehungsheim

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    In einer Kamerabrillenstudie werden die sozialen und materiellen Umwelten von Jugendlichen, die in Erziehungsheimen fĂŒr verhaltensauffĂ€llige und sozial beeintrĂ€chtigte Kinder und Jugendliche leben, untersucht und mit einer Kontrastgruppe nicht verhaltensauffĂ€lliger, zuhause lebender Jugendlichen verglichen. Die Ergebnisse deuten darauf hin, dass Heimjugendliche ĂŒber einen eingeschrĂ€nkten Streifraum verfĂŒgen, weniger mit Peers interagieren und mehr Aggression ausgesetzt sind. FĂŒr den Erfolg der Heimerziehung ist es zentral, Peers nicht unbeaufsichtigt zu lassen, weil durch eine negative Peerbeeinflussung der Erfolg der Intervention geschwĂ€cht wird.Une Ă©tude pour laquelle les participants sont Ă©quipĂ©s de lunettes munies de camĂ©ras analyse les environnements sociaux et matĂ©riaux de jeunes rĂ©sidant dans des structures pour enfants et jeunes atteints de troubles du comportement et prĂ©sentant des dĂ©ficits sociaux. Les environnements et matĂ©riaux de ce groupe sont ensuite comparĂ©s Ă  ceux d’un groupe de contrĂŽle constituĂ© de jeunes ne prĂ©sentant pas de troubles comportementaux et vivant Ă  leur domicile. Les rĂ©sultats mettent en Ă©vidence que les jeunes vivant dans des structures spĂ©cialisĂ©es disposent d’un espace d’action plus limitĂ©, interagissent moins avec leurs pairs et qu’ils sont soumis Ă  plus d’agression. Afin de garantir le succĂšs de l’éducation dans une structure spĂ©cialisĂ©e, il est primordial de ne pas laisser les pairs livrĂ©s Ă  eux-mĂȘmes, car une influence nĂ©gative entre ces derniers peut diminuer les chances de rĂ©ussite de l’intervention

    Emotions, Arousal, and Frontal Alpha Rhythm Asymmetry During Beethoven's 5th Symphony

    Get PDF
    Music is capable of inducing emotional arousal. While previous studies used brief musical excerpts to induce one specific emotion, the current study aimed to identify the physiological correlates of continuous changes in subjective emotional states while listening to a complete music piece. A total of 19 participants listened to the first movement of Ludwig van Beethoven's 5th symphony (duration: ~7.4 min), during which a continuous 76-channel EEG was recorded. In a second session, the subjects evaluated their emotional arousal during the listening. A fast fourier transform was performed and covariance maps of spectral power were computed in association with the subjective arousal ratings. Subjective arousal ratings had good inter-individual correlations. Covariance maps showed a right-frontal suppression of lower alpha-band activity during high arousal. The results indicate that music is a powerful arousal-modulating stimulus. The temporal dynamics of the piece are well suited for sequential analysis, and could be necessary in helping unfold the full emotional power of music

    Leben im Erziehungsheim – eine Kamerabrillenstudie: Aggression und Konflikt in Umwelten frĂŒhadoleszenter Jungen und MĂ€dchen

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    Heimjugendliche sind einer Mehrfachbelastung ausgesetzt und fordern ihre Erzieherinnen und Erzieher. Mit einer innovativen Kamerabrillenmethode werden die Umwelten von aggressiven Heimjugendlichen aus deren rĂ€umlichen Perspektive erfasst. Das Buch vermittelt Grundlagenwissen zu Aggression und Konflikt, fĂŒhrt in die Kamerabrillenmethodik ein und gibt einen Einblick in den Alltag eines Erziehungsheim

    Aggression und Konflikt im Erziehungsheim. Eine Kamerabrillenstudie

    No full text
    Kinder und Jugendliche mit massiven Verhaltensstörungen werden oft in Erziehungsheime fĂŒr sozial benachteiligte und verhaltensauffĂ€llige Jugendliche ĂŒberwiesen, in welchen abweichendes Verhalten behandelt und familiĂ€re Risikofaktoren korrigiert werden sollen. In der Studie wurden die Umwelten von acht Jugendlichen in Erziehungsheimen sowie einer Kontrollgruppe von vier nicht-aggressiven Jugendlichen untersucht. Die Jugendlichen trugen Kamerabrillen, mit welchen sie ganze TagesverlĂ€ufe aufnahmen und so das Geschehen in den Lebensbereichen Familie, Schule, Freizeit und Erziehungsheim aus ihrer rĂ€umlichen Perspektive registrierten. Mit ergĂ€nzenden Methoden wurde zudem das Wahrnehmen und Erleben der Jugendlichen erfragt. Die Ergebnisse deuten darauf hin, dass die Heimjugendlichen im Vergleich zur Kontrollgruppe ĂŒber einen kleineren Streifraum verfĂŒgen, weniger bedeutsame Interaktionspartnerinnen bzw. Interaktionspartner haben und auch weniger mit Gleichaltrigen interagieren. Im Vergleich mit den Kontrolljugendlichen haben sie außerdem hĂ€ufiger Konflikte und sind öfters TĂ€terinnen oder TĂ€ter sowie auch Opfer von aggressiven Handlungen
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