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1.
Behav Res Methods ; 55(5): 2669-2686, 2023 08.
Article in English | MEDLINE | ID: mdl-35962307

ABSTRACT

To enable flexible and controlled research on personality, information processing, and interactions in socio-emotional contexts, the availability of highly controlled stimulus material, especially trait words and related attributes, is indispensable. Existing word databases contain mainly nouns and rating dimensions, and their role in studies within socio-emotional contexts are limited. This study aimed to create an English list of traits (ELoT), a database containing 500 trait adjectives rated by a large sample (n = 822, 57.42% female). The rating categories refer to the perceived valence associated with the traits and their social desirability and observability. Participants of different ages (18 to 65 years of age) and educational levels rated the words in an online survey. Both valence and social desirability ratings showed a bimodal distribution, indicating that most traits were rated either positive (respectively socially desirable) or negative (respectively socially undesirable), with fewer words rated as neutral. For observability, a bell-shaped distribution was found. Results indicated a strong association between valence and social desirability, whereas observability ratings were only moderately associated with the other ratings. Valence and social desirability ratings were not related to participants' age or gender, but observability ratings were different for females and males, and for younger, middle-aged, and older participants. The ELoT is an extensive, freely available database of trait norms. The large sample and the balanced age and gender distributions allow to account for age- and gender-specific effects during stimulus selection.


Subject(s)
Language , Social Desirability , Male , Middle Aged , Humans , Female , Emotions , Personality , Databases, Factual
2.
Hum Brain Mapp ; 41(16): 4549-4561, 2020 11.
Article in English | MEDLINE | ID: mdl-32716597

ABSTRACT

Resting-state functional MRI (rs-fMRI) allows mapping temporally coherent brain networks, and intra- and inter-network alterations have been described in different diseases. This prospective study investigated hemispheric resting-state functional connectivity (RSFC) differences in the default-mode network (DMN) and fronto-parietal network (FPN) between patients with left- and right-hemispheric gliomas (LH PAT, RH PAT), addressing asymmetry effects the tumor might have on network-specific intrinsic functional connectivity under consideration of the prognostically relevant isocitrate-dehydrogenase (IDH) mutation status. Twenty-seven patients (16 LH PAT, 12 IDH-wildtype) and 27 healthy controls underwent anatomical and rs-fMRI as well as neuropsychological assessment. Independent component analyses were performed to identify the DMN and FPN. Hemispheric DMN- and FPN-RSFC were computed, compared across groups, and correlated with cognitive performance. Patient groups did not differ in tumor volume, grade or location. RH PAT showed higher contra-tumoral DMN-RSFC than controls and LH PAT. With regard to the FPN, contra-tumoral RSFC was increased in both patient groups as compared to controls. Higher contra-tumoral RSFC was associated with worse cognitive performance in patients, which, however, seemed to apply mainly to IDH-wildtype patients. The benefit of RSFC alterations for cognitive performance varied depending on the affected hemisphere, cognitive demand, and seemed to be altered by IDH-mutation status. At the time of study initiation, a clinical trial registration was not mandatory at our faculty, but it can be applied for if requested.


Subject(s)
Brain Neoplasms/physiopathology , Cerebral Cortex/physiopathology , Cognitive Dysfunction/physiopathology , Connectome , Default Mode Network/physiopathology , Glioma/physiopathology , Magnetic Resonance Imaging , Adult , Aged , Brain Neoplasms/complications , Brain Neoplasms/diagnostic imaging , Brain Neoplasms/pathology , Cerebral Cortex/diagnostic imaging , Cerebral Cortex/pathology , Cognitive Dysfunction/diagnostic imaging , Cognitive Dysfunction/etiology , Default Mode Network/diagnostic imaging , Default Mode Network/pathology , Female , Glioma/complications , Glioma/diagnostic imaging , Glioma/pathology , Humans , Male , Middle Aged , Nerve Net , Neuropsychological Tests
3.
Cogn Neuropsychiatry ; 25(2): 85-98, 2020 03.
Article in English | MEDLINE | ID: mdl-31707921

ABSTRACT

Introduction: The role of acute mood states as mediating factors in cognitive impairment in patients with mania or depression is not sufficiently clear. Similarly, the extent to which cognitive impairment is trait or state-specific remains an open question. Therefore, the aim of this study was to investigate the effect of a mood-induction on attention in patients with an affective disorder.Methods: Twenty-two depressed bipolar patients, 10 manic bipolar patients, 17 with a depressive episode (MDE), and 24 healthy controls performed the Attention-Network-Test (ANT). In a within-participants design, elated and sad moods were induced by an autobiographic recall and measured on a self-report scale. Subsequently, participants performed the ANT again.Results: The modulating effect of the elated mood induction on attention was small. Only the MDE group displayed moderate improvements in selective attention and tonic alertness. Surprisingly, after the sad mood induction, patients with MDE improved moderately on phasic and tonic alertness. Phasic alertness was also enhanced in patients with mania. Finally, after the mood induction, patients with MDE showed the largest variability in attentional performance.Conclusions: Results showed only small effects of mood induction on attention. This supports the view that attention deficits reflect trait variables.


Subject(s)
Affect/physiology , Attention/physiology , Bipolar Disorder/psychology , Depressive Disorder/psychology , Psychomotor Performance/physiology , Adult , Bipolar Disorder/physiopathology , Depressive Disorder/physiopathology , Female , Humans , Male , Mental Recall/physiology , Middle Aged , Self Report
4.
BMC Psychiatry ; 19(1): 334, 2019 11 01.
Article in English | MEDLINE | ID: mdl-31675999

ABSTRACT

BACKGROUND: Interoceptive deficits have been found to be associated with suicidal ideation and behavior. However, an objective measure of interoceptive accuracy has not been investigated in participants with suicide ideation, by now. This study aimed at investigating interoceptive accuracy and sensibility in persons with and without suicide ideation (SI) while controlling for severity of depressive symptoms. METHOD: Ninety-five participants (age: M = 34.8, SD = 11.6, n = 56 female [58.9%]; n = 51 patients with a Major Depressive Disorder and n = 44 healthy participants) were assessed for interoceptive accuracy and sensibility, depression and SI. RESULTS: Twenty-five participants (26%) reported SI. They showed interoceptive accuracy comparable to persons without SI (t = -.81, p = .422), but significantly lower interoceptive sensibility. After controlling for severity of depressive symptoms in a hierarchical linear regression analysis, most associations between interoceptive sensibility and SI disappeared. CONCLUSION: Results suggest that suicide ideators do not lack the ability to perceive their own bodily signals but they feel less able to use them in a way that is advantageous for them. Differences between suicide ideators and non-ideators appear to be largely driven by depressive symptoms (depression bias).


Subject(s)
Depressive Disorder, Major/psychology , Interoception , Perceptual Disorders/psychology , Suicidal Ideation , Adult , Case-Control Studies , Emotions , Female , Humans , Male , Middle Aged
5.
J Psycholinguist Res ; 48(5): 1111-1132, 2019 Oct.
Article in English | MEDLINE | ID: mdl-31102174

ABSTRACT

In this study, we present the Aachen List of Trait Words (ALoT), including a total of 606 German adjectives with English translations, describing personality traits. The lack of ratings regarding the social desirability of traits led us to create a German trait database. Ratings of valence and social desirability were obtained from 100 participants. Statistical analyses of 99 participants indicated that valence and social desirability ratings were strongly correlated. However, there are several words showing a weak or no relationship. Furthermore, uncommon words were rated less positively (or desirable) than more common traits. Word frequency and word length were positively correlated, showing that short terms were more common than long ones. Social desirability and valence ratings are presented together with several psycholinguistic variables known to influence word processing (e.g. word length) in the ALoT. Scores for each word are provided as supplemental materials. The ALoT is intended to provide stimulus material for experiments dealing with the affective processing of German trait adjectives.


Subject(s)
Affect , Language , Psycholinguistics , Translations , Vocabulary , Adult , Databases, Factual , Female , Germany , Humans , Male
6.
BJU Int ; 122(2): 309-316, 2018 08.
Article in English | MEDLINE | ID: mdl-29509292

ABSTRACT

OBJECTIVES: To develop a new assessment tool, the ICIQ-Cog, to measure the disease-related impact of incontinence in cognitively impaired adults and the effort associated with the care of this population, and to present the initial psychometric properties of this tool and outline the possible clinical implications. PARTICIPANTS AND METHODS: The ICIQ-Cog consists of two scales: a 12-item scale measuring disease-specific bother (ICIQ-Cog-P) and a four-item scale assessing efforts associated with care of people with incontinence and cognitive impairment (ICIQ-Cog-C). Data on 60 nursing home residents with incontinence and cognitive impairment were obtained in a test-retest research design. The psychometric properties of the ICIQ-Cog were examined using a combination of classic and item response theory methods. RESULTS: Factor analyses resulted in a three-factor solution for the ICIQ-Cog-P, with interrelated factors. Rasch analysis showed a good model fit when collapsing response categories. The ICIQ-Cog-C fitted to one dimension. The ICIQ-Cog tool provided reliable measures in terms of internal consistency (0.69-0.82) and retest reliability (0.71-0.83). The preliminary results on external validity showed that the ICIQ-Cog assessed disease-specific aspects linked to the group of cognitively impaired people with incontinence. CONCLUSION: The ICIQ-Cog tool has appropriate psychometric and clinometric properties and is therefore useful for making decisions about treatment in cognitively impaired adults with incontinence.


Subject(s)
Cognitive Dysfunction/psychology , Quality of Life/psychology , Surveys and Questionnaires/standards , Urinary Incontinence/therapy , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Pilot Projects , Psychometrics , Reproducibility of Results , Urinary Incontinence/psychology
7.
Cogn Process ; 19(4): 557-561, 2018 Nov.
Article in English | MEDLINE | ID: mdl-29796847

ABSTRACT

Metacognitive awareness and resting vagally mediated heart rate variability (HRV) as a physiological trait marker of cognitive inhibitory control capacities are both associated with better well-being and seem to share a common neural basis. Executive functioning which is considered a prerequisite for delivering prospective metacognitive judgments has been found to be correlated with HRV. This pilot study addresses the question, whether metacognitive awareness and resting vagally mediated HRV are positively associated. A sample of 20 healthy participants was analyzed that completed a typical Judgment of Learning task after an electrocardiogram had been recorded. The root-mean-squares of successive differences were used to calculate vagally mediated HRV. Metacognitive awareness was measured by comparing the judgments of learning with the actual memory performance, yielding a deviation score. HRV was found to be positively correlated with metacognitive awareness. Results suggest that metacognitive abilities might relate to physiological trait markers of cognitive inhibitory control capacities. Further experimental studies are needed to investigate causal relations.


Subject(s)
Judgment/physiology , Learning/physiology , Metacognition/physiology , Vagus Nerve/physiology , Adolescent , Adult , Awareness/physiology , Electrocardiography , Executive Function/physiology , Female , Heart Rate/physiology , Humans , Male , Memory/physiology , Pilot Projects , Prospective Studies , Psychomotor Performance/physiology , Young Adult
8.
Health Qual Life Outcomes ; 15(1): 196, 2017 Oct 10.
Article in English | MEDLINE | ID: mdl-29017570

ABSTRACT

BACKGROUND: Economic environmental factors represent important barriers to participation and have deleterious effects on quality of life (QOL) in persons with spinal diseases (SpD). While economic factors are anchored in the International Classification of Functioning, Disability and Health, their influence on QOL and participation from patients' perspectives is an infrequent focus of research. The aim of the present research is to calibrate a culturally adapted Rasch-based questionnaire assessing economic QOL in patients with SpD. METHODS: The 11-items of the German economic-QOL-scale were answered by 325 patients with SpD on a four-point Likert-scale. Fit to the Rasch measurement model was investigated by testing for stochastic ordering of the items, unidimensionality, local independence, and differential item functioning (DIF). RESULTS: After adjusting for local dependency, fit to the Rasch model was achieved with a non-significant item-trait interaction (chi-squaredf = 20 = 34.8, p = 0.021). The person separation reliability equaled 0.88, the scale was free from age- or gender-related DIF, and unidimensionality could be verified. CONCLUSIONS: The Rasch-based German version of the economic-QOL-scale represents a suitable instrument to investigate the influences of economic factors on patients' QOL at a group and individual level. It can be easily applied in research and practice and may be administered quickly in combination with other instruments. The short test duration implies a low test burden for patients and a minimum of time expenditure by clinicians when evaluating the results.


Subject(s)
Disabled Persons/psychology , Quality of Life , Socioeconomic Factors , Spinal Diseases/psychology , Surveys and Questionnaires , Adult , Aged , Female , Humans , Male , Middle Aged , Psychometrics , Reproducibility of Results
9.
Psychother Res ; 27(2): 143-153, 2017 03.
Article in English | MEDLINE | ID: mdl-26360525

ABSTRACT

OBJECTIVES: The aim of this study was to identify whether trait emotion regulation strategies predict successful or unsuccessful psychotherapy outcomes in cognitive behaviour therapy. METHODS: Three emotion regulation strategies (reappraisal, suppression, and externalizing behaviour) were assessed in 358 in- and outpatients. Patients were then grouped by therapy outcome. Emotion regulation strategies and confounding variables were entered as predictors in multinomial logistic regression analyses. RESULTS: Emotion suppression, but not reappraisal, was found to predict therapy outcomes for in- and outpatients, with patients high in suppression experiencing worse outcomes. Externalizing behaviour was only relevant in inpatient treatment. CONCLUSIONS: High suppression might be detrimental to psychotherapy outcome and should be assessed early on. Further research should investigate the influence of suppression on the mechanisms that facilitate change in psychotherapy.


Subject(s)
Cognitive Behavioral Therapy , Emotions/physiology , Mental Disorders/therapy , Outcome Assessment, Health Care , Self-Control , Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Outcome Assessment, Health Care/methods , Young Adult
10.
Behav Brain Funct ; 11: 17, 2015 Apr 16.
Article in English | MEDLINE | ID: mdl-25889338

ABSTRACT

BACKGROUND: Recent studies with younger adults have shown that performance feedback can serve as a reward, and it elicits reward-related brain activations. This study investigated whether performance feedback is processed similarly in younger and older adults and whether there are differential aging effects for positive and negative performance feedback. METHODS: We used event-related fMRI in a choice reaction-time task and provided performance feedback after each trial. RESULTS: Although younger and older adults differed in task-related activation, they showed comparable reward-related activation. Positive performance feedback elicited the strongest striatal and amygdala activation, which was reflected behaviorally in slightly faster reaction times. CONCLUSIONS: These results suggest that performance feedback serves as a reward in both younger and older adults.


Subject(s)
Aging/physiology , Aging/psychology , Feedback, Psychological/physiology , Adult , Aged , Amygdala/physiology , Choice Behavior/physiology , Corpus Striatum/physiology , Female , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Psychomotor Performance/physiology , Reaction Time/physiology , Reward , Young Adult
11.
Hum Brain Mapp ; 35(2): 471-82, 2014 Feb.
Article in English | MEDLINE | ID: mdl-23033120

ABSTRACT

In depression, patients suffer from emotional and cognitive deficits, among others in semantic processing. If these semantic deficits are cognitive or interact with emotional dysfunctions, is still an open question. The aim of the current study was to investigate the influence of emotional valence on the neural correlates of semantic priming in major depression. In a lexical decision task, positive, negative, and neutral word pairs were presented during fMRI measurement. Nineteen inpatients and 19 demographically matched controls were recruited. Behaviorally, positive and neutral valence induced a priming effect whereas negative valence induced no effect (controls) or even inhibition (slower RT for related stimuli) in patients. At the neural level, the semantic relation effect revealed similar neural activation in right middle frontal regions for patients and controls. Group differences emerged in the right fusiform gyrus and the ACC. Activity associated with positive valence differed at the DLPFC and amygdala and for negative valence at putamen and cerebellum. The activation of amygdala and DLPFC correlated negatively with the severity of depression. To conclude, semantic processing deficits in depression are modulated by emotional valence of the stimulus on the behavioral as well as on neural level in right-lateralized prefrontal areas and the amygdala. The results highlighted an influence of depression severity on emotion information processing as the severity of symptoms correlated negatively with neural responses to positively and negatively valenced information. Hence, the dysfunctional emotion processing may further enhance the cognitive deficits in depression.


Subject(s)
Brain/blood supply , Depression/pathology , Depression/physiopathology , Magnetic Resonance Imaging , Semantics , Adult , Analysis of Variance , Attention/physiology , Brain/pathology , Brain Mapping , Cues , Decision Making/physiology , Female , Functional Laterality , Humans , Image Processing, Computer-Assisted , Male , Oxygen/blood , Photic Stimulation , Reaction Time/physiology , Statistics as Topic , Young Adult
12.
Psychother Psychosom ; 83(4): 222-33, 2014.
Article in English | MEDLINE | ID: mdl-24970601

ABSTRACT

BACKGROUND: Cognitive behavioral therapy (CBT) is an effective treatment for panic disorder with agoraphobia (PD/AG). It is unknown, how variants of CBT differentially modulate brain networks involved in PD/AG. This study was aimed to evaluate the effects of therapist-guided (T+) versus self-guided (T-) exposure on the neural correlates of fear conditioning in PD/AG. METHOD: In a randomized, controlled multicenter clinical trial in medication-free patients with PD/AG who were treated with 12 sessions of manualized CBT, functional magnetic resonance imaging (fMRI) was used during fear conditioning before (t1) and after CBT (t2). Quality-controlled fMRI data from 42 patients and 42 healthy subjects (HS) were obtained. Patients were randomized to two variants of CBT (T+, n = 22, and T-, n = 20). RESULTS: The interaction of diagnosis (PD/AG, HS), treatment group (T+, T-), time point (t1, t2) and stimulus type (conditioned stimulus: yes, no) revealed activation in the left hippocampus and the occipitotemporal cortex. The T+ group demonstrated increased activation of the hippocampus at t2 (t2 > t1), which was positively correlated with treatment outcome, and a decreased connectivity between the left inferior frontal gyrus and the left hippocampus across time (t1 > t2). CONCLUSION: After T+ exposure, contingency-encoding processes related to the posterior hippocampus are augmented and more decoupled from processes of the left inferior frontal gyrus, previously shown to be dysfunctionally activated in PD/AG. Linking single procedural variants to neural substrates offers the potential to inform about the optimization of targeted psychotherapeutic interventions.


Subject(s)
Agoraphobia/physiopathology , Agoraphobia/therapy , Cerebral Cortex/physiopathology , Cognitive Behavioral Therapy/methods , Panic Disorder/physiopathology , Panic Disorder/therapy , Adult , Conditioning, Psychological/physiology , Fear/physiology , Female , Hippocampus/physiopathology , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Treatment Outcome
13.
Psychol Res ; 78(4): 597-607, 2014 Jul.
Article in English | MEDLINE | ID: mdl-23955240

ABSTRACT

Metacognitive monitoring is a central element of metacognitive processing exerting widespread influences on information processing. Albeit being subject to numerous empirical investigations referring to memory performance, there is little research investigating metacognitive monitoring in other cognitive domains. The present study investigated in 45 healthy students whether factors that are known to influence monitoring of memory performance, i.e., task difficulty, time of assessment, and practice, also exhibit a significant impact on monitoring of attention performance. A multivariate analysis of variance with three within-subject repeated measures factors on two dependent variables (monitoring of (a) time, and (b) errors in an attention task) was conducted. Results showed that monitoring ability significantly decreased with increasing task difficulty, was significantly better for post than for pre-assessment, and significantly increased with practice. Therefore, results suggest that the examined factors influenced monitoring of attention performance equivalent to the influence of these factors found in metamemory research.


Subject(s)
Attention/physiology , Cognition/physiology , Memory/physiology , Adult , Female , Humans , Male , Neuropsychological Tests , Young Adult
14.
Psychother Res ; 24(1): 67-79, 2014.
Article in English | MEDLINE | ID: mdl-23957243

ABSTRACT

Decentering is described as referring to one's current mental experiences from an objective perspective. This study presents a psychometric evaluation of a German version of the Experiences Questionnaire (EQ-D), a self-report instrument designed to measure decentering. Confirmatory factor analysis on a sample of 506 university students indicates acceptable-to-good model fit (χ(2)=58.3; TLI=.92; CFI=.95; RMSEA=.067) for a second-order factor Overall Decentering comprising the two first-order factors Accepting Self-Perception and Distanced Perspective. Preliminary evidence for the validity of the EQ-D was demonstrated via negative correlations with measures of depression and depressive rumination. The present results stress the multidimensional nature of decentering and provide important suggestions for future research on how to investigate and operationalize the decentering construct.


Subject(s)
Cognition , Self Concept , Self Report , Adult , Depression/psychology , Factor Analysis, Statistical , Female , Humans , Male , Psychometrics/instrumentation , Surveys and Questionnaires , Young Adult
15.
Front Psychol ; 15: 1217416, 2024.
Article in English | MEDLINE | ID: mdl-38638517

ABSTRACT

Introduction: People use coping strategies such as self-affirmation to manage threats to their self-esteem. In empirical research, self-affirmation often involves recalling personal values, strengths, or relationships to restore moral integrity. Research shows it improves attitude adjustment, resolves cognitive dissonance, and enhances well-being. Some studies stress the importance of distinguishing between different aspects of self-affirmation, like strengths or social relations. These aspects align with concepts in psychotherapy that differentiate between internal and external resource activation, benefiting health, self-esteem, and resilience. The aim of the current study was twofold: first, to independently test the three-factor structure of the Spontaneous Self-affirmation Measure (SSAM), and second, to integrate self-affirmation strategies into a broader resource activation framework as resilience factors. It also examined associations with self-esteem and effects of age, gender, and education on spontaneous self-affirmation. Methods: 1,100 participants (72% female, age 18-65) were recruited online. The original three-factor structure of the SSAM (with the factors Strengths, Values and Social relations) was examined using structural equation modeling. Further, a theory driven two-factor structure applying an internal and external resources framework was examined, integrating the factors of the SSAM into the taxonomy of resource activation (Internal resources: Strengths and Values; External resources: Social relations). Results: The results of confirmatory factor analyses showed that both the original three-factor structure and the complementary two-factor structure with an Internal resources and External resources factor fit the data appropriately. All three factors of the original factor model showed a high reliability (Strengths: ωt = 0.91, Values: ωt = 0.91, Social relations: ωt = 0.92). We also found measurement invariance across age, gender, and education. Furthermore, group differences regarding gender, education and ethnicity in the utilization of spontaneous self-affirmation strategies were apparent. Finally, it was demonstrated that the Internal resources factor of the complementary two-factor model is significantly more strongly correlated with self-esteem than the External Resources factor [z = 12.80, p < 0.001, 95%CIdiff (0.24, 0.33)]. Discussion: The study confirms the validity of both the three-factor and two-factor structures of the SSAM. Integrating self-affirmation into the resource activation framework may facilitate applying findings from self-affirmation studies to clinical contexts.

16.
BMC Psychiatry ; 13: 16, 2013 Jan 09.
Article in English | MEDLINE | ID: mdl-23302222

ABSTRACT

BACKGROUND: Negative affect and difficulties in its regulation have been connected to several adverse psychological consequences. While several questionnaires exist, it would be important to have a theory-based measure that includes clinically relevant items and shows good psychometric properties in healthy and patient samples. This study aims at developing such a questionnaire, combining the two Gross [1] scales Reappraisal and Suppression with an additional response-focused scale called Externalizing Behavioral Strategies covering clinically relevant items. METHODS: The samples consisted of 684 students (mean age = 23.3, SD = 3.5; 53.6% female) and 369 persons with mixed mental disorders (mean age = 36.0 SD = 14.6; 71.2% female). Items for the questionnaire were derived from existing questionnaires and additional items were formulated based on suggestions by clinical experts. All items start with "When I don't feel well, in order to feel better…". Participants rated how frequently they used each strategy on a 5-point Likert scale. Confirmatory Factor Analyses were conducted to verify the factor structure in two separate student samples and a clinical sample. Group comparisons and correlations with other questionnaires were calculated to ensure validity. RESULTS: After modification, the CFA showed good model fit in all three samples. Reliability scores (Cronbach's α) for the three NARQ scales ranged between .71 and .80. Comparisons between students and persons with mental disorders showed the postulated relationships, as did comparisons between male and female students and persons with or without Borderline Personality Disorder. Correlations with other questionnaires suggest the NARQ's construct validity. CONCLUSIONS: The results indicate that the NARQ is a psychometrically sound and reliable measure with practical use for therapy planning and tracking of treatment outcome across time. We advocate the integration of the new response-focused strategy in the Gross's model of emotion regulation.


Subject(s)
Affect , Surveys and Questionnaires/standards , Adolescent , Adult , Aged , Depressive Disorder/psychology , Factor Analysis, Statistical , Feeding and Eating Disorders/psychology , Female , Humans , Male , Middle Aged , Psychiatric Status Rating Scales , Psychometrics , Reproducibility of Results , Young Adult
17.
Compr Psychiatry ; 54(7): 1082-9, 2013 Oct.
Article in English | MEDLINE | ID: mdl-23751247

ABSTRACT

BACKGROUND: The study aimed to cross-validate the psychometric properties of the two parallel versions of the "Rasch-based Depression Screening (DESC)" in a mixed clinical sample of patients with mental disorders and somatic diseases. Additionally, it was intended to confirm the initially proposed cut-off scores. METHODS: One hundred eleven inpatients from the Departments of Psychiatry (n=50), Cardiology (n=39) and Otorhinolaryngology (n=22) were examined. Accordance to Rasch model assumptions was determined by analyzing item infit and outfit as well as unidimensionality and local independence via residual principal components factor analysis (PCFA). Furthermore, separation, reliability and the targeting were considered. Differential item functioning (DIF) was investigated with regard to gender, age and clinical group. Finally, receiver operating characteristics (ROC) curves analyses were conducted and parallel test reliability was calculated. RESULTS: Item and person separation and reliability were good with separation values being above 2.90 and reliability exceeding being .90. Rasch model fit was good for all items except for the two items "sad" and "hopeless" displaying slight misfit. Targeting was appropriate with a person mean of -1.6 (DESC-I) and -1.5 (DESC-II) reflecting as expected that the two DESC versions were in average to easy for a mixed sample of patients with mental disorders and somatic. PCFA showed unidimensionality and local independence: The Rasch dimension "depression" explained 84.8% (DESC-I) and 82.2% (DESC-II) of the observed variance. No DIF was found. ROC curves confirmed the proposed cut-off score of 12 points. The area under the curve amounted to .91 for both DESC forms. The Youden index was 75.5 for DESC-I and 75.7 for DESC-II. A high parallel test reliability of .94 showed virtual equivalence of both DESC forms. CONCLUSIONS: Results of the present study support the good psychometric properties of both DESC forms in patients with mental disorders and somatic diseases. This study confirmed the cut-off scores that had already been determined in former patient samples. Thus, both DESC forms can be used validly as screening instruments for depression in clinical practice.


Subject(s)
Depression/diagnosis , Depressive Disorder/diagnosis , Adult , Aged , Cross-Sectional Studies , Factor Analysis, Statistical , Female , Humans , Male , Mass Screening , Middle Aged , Principal Component Analysis , Psychometrics , Quality of Life , ROC Curve , Reproducibility of Results , Surveys and Questionnaires
18.
Front Psychol ; 14: 1250802, 2023.
Article in English | MEDLINE | ID: mdl-38034302

ABSTRACT

Introduction: Decentering describes the ability to shift the focus away from one's subjective experience onto the experience itself. The Experiences Questionnaire (EQ) is a self-report measure that was developed to systematically assess changes in Decentering ability. Although several studies show the validity of the questionnaire, there are discrepancies between the factorial structure of the Decentering scale of the EQ (EQ-D) found in the initial study (one factor) and other studies (two factors). Therefore, the current study aimed to assess the dimensionality of the EQ-D using Exploratory Graph Analysis (EGA). Methods: In total, 1,100 participants were recruited online (790 female, 307 male, 3 non-binary; age 18 to 65 years). Participants completed the EQ and the Rosenberg Self-esteem scale (RSES). Results: The bootstrapped EGA results revealed a two-dimensional structure of the EQ-D (Factor 1: Distanced Perspective, DP; Factor 2: Accepting Self-perception, AS) with high structural and item stability (all items > 0.70). The two dimensions of the EQ-D showed a high internal consistency (DP: ω = 0.74; AS: ω = 0.86) and discriminant validity with the rumination items of the EQ. Furthermore, a high convergent validity of the EQ was established, as the AS factor exhibited a significantly stronger correlation with self-esteem than the DP factor (z = 7.98, p < 0.001), which aligns with theoretical considerations suggesting that the AS factor encompasses aspects of self-compassion alongside decentering. We also found measurement invariance of the DP and AS factor across age, gender and country but not for education. Discussion: These results support the EQ's validity, demonstrated in a larger sample with a new methodology, aligning with existing two-factor decentering models literature.

19.
PLoS One ; 18(11): e0287965, 2023.
Article in English | MEDLINE | ID: mdl-37917589

ABSTRACT

To ensure good animal welfare in laboratory research and in stockbreeding severity ratings of the animals´ wellbeing are essential. The current study investigated how valid raters can evaluate different severity degrees of clinical appearance and how ratings might be influenced by factors other than the severity itself. Ninety-seven people rated the severity degree (none, mild, moderate, or severe) of the clinical appearance of mice seen in eight different images. The images also differed in the perspective in which they had been taken (entire mouse or head only). The raters differed with regard to their experience of working with laboratory animals and were subsequently divided into three groups-beginners, advanced, professionals. Generalisability theory was applied to examine the contribution of the different rater (raters themselves and experience) and image facets (actual degree of severity and perspective) to the overall data variability. The images showing the extreme severity degrees were rated more homogenously and more precisely than were the images showing the intermediate degrees, as compared to the reference scores. The largest source of variance was the actual degree of severity, accounting for 56.6% of the total variance. Considering only the images showing the extreme severity degrees, this percentage rose to 91.6%, accounting almost exclusively for the found variance. In considering only the intermediate severity degrees, the actual degree of severity did not contribute to variance at all. The remaining variance was due to the raters and the interactions between raters, the actual degree of severity and the perspective. The experience of the raters did not account for any variance. Training in the assessment of severity degrees seems necessary to enhance detection of the intermediate degrees of severity, especially when images are used. In addition, good training material should be developed and evaluated to optimise teaching and to minimise wrong assessments.


Subject(s)
Clinical Competence , Educational Measurement , Humans , Animals , Mice , Pilot Projects , Educational Measurement/methods , Reproducibility of Results
20.
Hum Brain Mapp ; 33(3): 676-94, 2012 Mar.
Article in English | MEDLINE | ID: mdl-21520342

ABSTRACT

Emotions influence our everyday life in several ways. With the present study, we wanted to examine the impact of emotional information on neural correlates of semantic priming, a well-established technique to investigate semantic processing. Stimuli were presented with a short SOA of 200 ms as subjects performed a lexical decision task during fMRI measurement. Seven experimental conditions were compared: positive/negative/neutral related, positive/negative/neutral unrelated, nonwords (all words were nouns). Behavioral data revealed a valence specific semantic priming effect (i.e., unrelated > related) only for neutral and positive related word pairs. On a neural level, the comparison of emotional over neutral relations showed activation in left anterior medial frontal cortex, superior frontal gyrus, and posterior cingulate. Interactions for the different relations were located in left anterior part of the medial frontal cortex, cingulate regions, and right hippocampus (positive > neutral + negative) and left posterior part of medial frontal cortex (negative > neutral + positive). The results showed that emotional information have an influence on semantic association processes. While positive and neutral information seem to share a semantic network, negative relations might induce compensatory mechanisms that inhibit the spread of activation between related concepts. The neural correlates highlighted a distributed neural network, primarily involving attention, memory and emotion related processing areas in medial fronto-parietal cortices. The differentiation between anterior (positive) and posterior part (negative) of the medial frontal cortex was linked to the type of affective manipulation with more cognitive demands being involved in the automatic processing of negative information.


Subject(s)
Brain Mapping , Brain/physiology , Emotions/physiology , Repetition Priming/physiology , Semantics , Female , Humans , Image Interpretation, Computer-Assisted , Magnetic Resonance Imaging , Male , Photic Stimulation , Reaction Time/physiology , Young Adult
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