scholarly journals Mental heartbeat tracking and rating of emotional pictures are not related

2021 ◽  
Author(s):  
Eszter Ferentzi ◽  
Luca Vig ◽  
Mats Julin Lindkjølen ◽  
Markus Erling Lien ◽  
Ferenc Köteles
Keyword(s):  
Analysis Of Variance ◽  
Empirical Studies ◽  
Tracking Task ◽  
Subjective Ratings ◽  
Bayesian Approaches ◽  
Heartbeat Perception ◽  
Repeated Analysis ◽  
Emotional Pictures ◽  
Interoceptive Accuracy ◽  
Arousal And Valence

AbstractOur aim was to conceptually replicate the findings of previous empirical studies showing that people with higher cardiac interoceptive accuracy experience more intense emotions. Apart of the mental heartbeat tracking task of Schandry, Hungarian (n = 46, 76.0% female, mean age 22.28 ± 2.228) and Norwegian (n = 50, 60.0% female, mean age 24.66 ± 3.048) participants rated the arousal and valence evoked by positive, neutral and negative pictures. Multivariate repeated analysis of variance (applying both frequentist and Bayesian approaches) did not reveal any connection between heartbeat perception scores and the subjective ratings (i.e., arousal and valence) of the pictures in any of the two groups. The lack of the expected association between cardioceptive accuracy and arousal might partly be explained by the methodological differences between previous studies and this one; for example, we did not split or preselected the sample based on the performance on the Schandry task and applied a relatively strict instruction (i.e., by encouraging to count felt heartbeats only, and to report zero if no sensations were detected).

The Relationship Between Interoception and Metacognition

2016 ◽  
Vol 30 (2) ◽  
pp. 76-86 ◽  
Author(s):  
Judith Meessen ◽  
Verena Mainz ◽  
Siegfried Gauggel ◽  
Eftychia Volz-Sidiropoulou ◽  
Stefan Sütterlin ◽  
...  
Keyword(s):  
Memory Performance ◽  
Memory Task ◽  
Demographic Characteristics ◽  
Metacognitive Awareness ◽  
Interoceptive Awareness ◽  
Future Research ◽  
Heartbeat Perception ◽  
Interoceptive Accuracy ◽  
The Relationship

Abstract. Recently, Garfinkel and Critchley (2013) proposed to distinguish between three facets of interoception: interoceptive sensibility, interoceptive accuracy, and interoceptive awareness. This pilot study investigated how these facets interrelate to each other and whether interoceptive awareness is related to the metacognitive awareness of memory performance. A sample of 24 healthy students completed a heartbeat perception task (HPT) and a memory task. Judgments of confidence were requested for each task. Participants filled in questionnaires assessing interoceptive sensibility, depression, anxiety, and socio-demographic characteristics. The three facets of interoception were found to be uncorrelated and interoceptive awareness was not related to metacognitive awareness of memory performance. Whereas memory performance was significantly related to metamemory awareness, interoceptive accuracy (HPT) and interoceptive awareness were not correlated. Results suggest that future research on interoception should assess all facets of interoception in order to capture the multifaceted quality of the construct.

Psychophysically Based Physical Capability Limits For Right Angle Power Tool Operation

2020 ◽  
Vol 64 (1) ◽  
pp. 910-914
Author(s):  
Jonathan Valencia ◽  
Joel Cort
Keyword(s):  
Analysis Of Variance ◽  
The Other ◽  
Mixed Design ◽  
Joint Orientation ◽  
Physical Capability ◽  
Subject Variables ◽  
Group A ◽  
Repeated Analysis ◽  
Post Hoc

A psychophysical methodology was utilized to examine 40 non-skilled female participants performing right-angle power tool (RAPT) fastening tasks. A combination of two between subject variables were examined for a total of four between-subject groups: joint orientation (horizontal and vertical planes) and joint hardness (hard and soft joints). Participants were evenly distributed into one of four joint orientation- hardness groups. Within each group, a combination of three fastening strategies and three fastening frequencies were performed by each participant. The chosen target torque determined the physical capability limits (PCL). A mixed-design repeated analysis of variance with Tukey’ significance post hoc test were used to determine any significance with the measured variables ( p<0.05). Fastening strategy and frequency influenced the chosen torque magnitude. Participants chose significantly higher target torques with the Turbo Tight strategy in comparison to the other two strategies. Furthermore, participants chose to accept lower target torques and forces as fastening frequency increased.

scholarly journals Integration Biases in the Ouchi and other Visual Illusions

Perception ◽  
10.1068/p2983 ◽  
2000 ◽  
Vol 29 (6) ◽  
pp. 721-727 ◽  
Author(s):  
George Mather
Keyword(s):  
Relative Motion ◽  
Experimental Test ◽  
Empirical Studies ◽  
Visual Illusions ◽  
Local Motion ◽  
Bayesian Approaches ◽  
Visual Coding ◽  
Texture Pattern ◽  
The Subject ◽  
The Way

A texture pattern devised by the Japanese artist H Ouchi has attracted wide attention because of the striking appearance of relative motion it evokes. The illusion has been the subject of several recent empirical studies. A new account is presented, along with a simple experimental test, that attributes the illusion to a bias in the way that local motion signals generated at different locations on each element are combined to code element motion. The account is generalised to two spatial illusions, the Judd illusion and the Zöllner illusion (previously considered unrelated to the Ouchi illusion). The notion of integration bias is consistent with recent Bayesian approaches to visual coding, according to which the weight attached to each signal reflects its reliability and likelihood.

scholarly journals Prediction of subjective ratings of emotional pictures by EEG features

2016 ◽  
Vol 14 (1) ◽  
pp. 016009 ◽  
Author(s):  
Dennis J McFarland ◽  
Muhammad A Parvaz ◽  
William A Sarnacki ◽  
Rita Z Goldstein ◽  
Jonathan R Wolpaw
Keyword(s):  
Subjective Ratings ◽  
Emotional Pictures ◽  
Eeg Features

scholarly journals Major Depressive Disorder Is Associated with Impaired Interoceptive Accuracy: A Systematic Review

2019 ◽  
Vol 9 (6) ◽  
pp. 131 ◽  
Author(s):  
Michael Eggart ◽  
Andreas Lange ◽  
Martin Binser ◽  
Silvia Queri ◽  
Bruno Müller-Oerlinghausen
Keyword(s):  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Selective Serotonin Reuptake Inhibitors ◽  
Entire Body ◽  
Affect Intensity ◽  
Inclusion Criteria ◽  
Recurrent Depression ◽  
Major Depressive ◽  
Heartbeat Perception ◽  
Interoceptive Accuracy

Interoception is the sense of the physiological condition of the entire body. Impaired interoception has been associated with aberrant activity of the insula in major depressive disorder (MDD) during heartbeat perception tasks. Despite clinical relevance, studies investigating interoceptive impairments in MDD have never been reviewed systematically according to the guidelines of the PRISMA protocol, and therefore we collated studies that assessed accuracy in detecting heartbeat sensations (interoceptive accuracy, IAc) in MDD (databases: PubMed/Medline, PsycINFO, and PsycARTICLES). Out of 389 records, six studies met the inclusion criteria. The main findings suggest that (i) moderately depressed samples exhibit the largest interoceptive deficits as compared with healthy adults. (ii) difficulties in decision making and low affect intensity are correlated with low IAc, and (iii) IAc seems to normalize in severely depressed subjects. These associations may be confounded by sex, anxiety or panic disorder, and intake of selective serotonin reuptake inhibitors. Our findings have implications for the development of interoceptive treatments that might relieve MDD-related symptoms or prevent relapse in recurrent depression by targeting the interoceptive nervous system.

scholarly journals Reduction of auditory input improves performance on the heartbeat tracking task, but does not necessarily enhance interoception

2019 ◽  
Author(s):  
Jennifer Todd ◽  
Farah Hina ◽  
Jane E Aspell
Keyword(s):  
Discrete Time ◽  
Repeated Measures ◽  
Tracking Task ◽  
Auditory Input ◽  
Time Intervals ◽  
Non Invasive ◽  
Lower Baseline ◽  
Interoceptive Accuracy

Previous research utilising a between-subjects design has indicated that the use of noise-dampening ear-protectors might enhance interoceptive accuracy (IAcc). In the present study, we further examined this effect using a repeated-measures, within-participants design, and investigated potential mechanisms that might explain the effect. 50 participants completed the heartbeat tracking task (HTT) with and without the use of industrial ear-protectors, in a counter-balanced order. Participants were asked to count the number of heartbeats occurring in five discrete time intervals of 25, 35, 45, 55 and 95 seconds, without feeling for a manual pulse. HTT scores were significantly higher when ear-protectors were worn, and the improvement in performance was greatest for participants with lower baseline IAcc. The ear-protectors were associated with significantly increased self-reported heartbeat audibility, task-related confidence and concentration, and decreased levels of distractibility. Heartbeat audibility was also correlated with HTT performance when the ear-protectors were worn. Because the use of industrial ear defenders resulted in increased heartbeat audibility, this manipulation should not be used to assess causal hypotheses related to changes in IAcc. However, it may serve as a simple, non-invasive manipulation to assess the effects of externalised interoceptive signals.

scholarly journals Populasi Telur Nyamuk Aedes sp. Pada Ovitrap yang Diberi Fermentasi Gula sebagai Atraktan Alami di Lingkungan Kampus FMIPA Universitas Lampung

2020 ◽  
Vol 12 (2) ◽  
pp. 109-113
Author(s):  
Sekar Pratiwi ◽  
Emantis Rosa ◽  
Priyambodo Priyambodo ◽  
Tugiyono Tugiyono
Keyword(s):  
Carbon Dioxide ◽  
Key Words ◽  
Research Design ◽  
Analysis Of Variance ◽  
Brown Sugar ◽  
Anova Test ◽  
Random Design ◽  
Sugar Fermentation ◽  
Repeated Analysis

Diseases transmitted by mosquito especially Aedes sp. there’s still happens in many areas of both city and village in Indonesia, until reducing Aedes sp. requires controlled effort. Attractant is a compound that can effect the behavior of mosquito even to decrease the population of mosquito directly.  Sugar fermentation can be a natural attractant, this solution can produce carbon dioxide compound that can be a attract for mosquito, until mosquitoes are attracted to ovitrap.  The purposes of this research was to determined the sugar fermentation to total of Aedes sp. eggs at ovitrap.  The research design used is a Complete Random Design (CRD) with 5 repeated. Analysis of data using Analysis of Variance (ANOVA) and if there are the significant differences of treatment then test continued with BNT test signification levels α = 5%.  The result is indicate that fermentation formula P1 (50 gr brown sugar+ 1 g yeast) found up to 15 mosquitos eggs at ovitrap with a percentage of 50% more than any other formula, ANOVA test indicate that the value of p<0,05 that’s mean there is none significant differences between the treatment.  Key words: Aedes sp.; attractant; sugar fermentation

Does Personality Modulate Skin Conductance Responses to Emotional Stimuli?

2010 ◽  
Vol 31 (3) ◽  
pp. 124-129 ◽  
Author(s):  
Solange Mardaga ◽  
Michel Hansenne
Keyword(s):  
Skin Conductance ◽  
Recovery Time ◽  
Emotional Reactivity ◽  
Normal Subjects ◽  
Emotional Valence ◽  
Subjective Ratings ◽  
Emotional Stimuli ◽  
Emotional Responsiveness ◽  
Skin Conductance Responses ◽  
Emotional Pictures

Several studies showed that personality modulates emotional responsiveness, though most of them used subjective ratings as the measure of emotion. The present study extends personality-emotion relationship findings to psychophysiological methods, more precisely to skin conductance responses (SCRs). SCRs were recorded in 54 normal subjects following the presentation of neutral and emotional pictures. Results showed that half-recovery time was modulated by harm avoidance (HA) as a function of emotional valence: Low-HA subjects showed longer half-recovery time following the presentation of pleasant pictures relative to neutral ones, whereas high-HA subjects showed no extended half-recovery time. These results support the hypothesis that personality modulates some aspects of somatic emotional reactivity, and together with previous results, they suggest that this phenomenon is highly dependent upon the characteristics of the emotional material.

scholarly journals Fine Tuning Your Heart: a novel method for measuring interoceptive accuracy

2019 ◽  
Author(s):  
Clare Palmer ◽  
Vivien Ainley ◽  
Manos Tsakiris
Keyword(s):  
Standard Test ◽  
Fine Tuning ◽  
Matching Task ◽  
Elapsed Time ◽  
Heartbeat Perception ◽  
Gold Standard Test ◽  
Custom Made ◽  
Novel Method ◽  
Interoceptive Accuracy ◽  
Lying Down

Interoception research is hampered by the lack of an agreed gold standard test of interoceptive accuracy. To avoid several confounds of heartbeat perception tasks, we devised a novel method of ‘heartbeat matching’, whereby participants use a custom-made slider to adjust the rate at which a heart icon is pulsing on a PC screen, to match this to the pace of their own heart. Because heartbeat counting has been shown to modulate with posture, participants completed both heartbeat matching and a standard heartbeat counting task while standing and when lying down. Accuracy was significantly higher in the heartbeat matching task. Moreover, ability to estimate elapsed time was also more accurate using the matching task but was not significantly correlated with interoceptive accuracy. Participants were more accurate on both tasks when lying down. However, participants underestimated the pace of their hearts in both methods. We discuss possible interpretations and how these might be distinguished.

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