Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 145
Filtrar
Mais filtros

Bases de dados
Tipo de documento
Intervalo de ano de publicação
1.
Cereb Cortex ; 34(7)2024 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-38984703

RESUMO

The propensity to experience meaningful patterns in random arrangements and unrelated events shows considerable interindividual differences. Reduced inhibitory control (over sensory processes) and decreased working memory capacities are associated with this trait, which implies that the activation of frontal as well as posterior brain regions may be altered during rest and working memory tasks. In addition, people experiencing more meaningful coincidences showed reduced gray matter of the left inferior frontal gyrus (IFG), which is linked to the inhibition of irrelevant information in working memory and the control and integration of multisensory information. To study deviations in the functional connectivity of the IFG with posterior associative areas, the present study investigated the fMRI resting state in a large sample of n = 101 participants. We applied seed-to-voxel analysis and found that people who perceive more meaningful coincidences showed negative functional connectivity of the left IFG (i.e. pars triangularis) with areas of the left posterior associative cortex (e.g. superior parietal cortex). A data-driven multivoxel pattern analysis further indicated that functional connectivity of a cluster located in the right cerebellum with a cluster including parts of the left middle frontal gyrus, left precentral gyrus, and the left IFG (pars opercularis) was associated with meaningful coincidences. These findings add evidence to the neurocognitive foundations of the propensity to experience meaningful coincidences, which strengthens the idea that deviations of working memory functions and inhibition of sensory and motor information explain why people experience more meaning in meaningless noise.


Assuntos
Imageamento por Ressonância Magnética , Humanos , Masculino , Feminino , Adulto , Adulto Jovem , Encéfalo/fisiologia , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico , Memória de Curto Prazo/fisiologia , Descanso/fisiologia , Vias Neurais/fisiologia , Vias Neurais/diagnóstico por imagem
2.
Cogn Emot ; : 1-8, 2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38722266

RESUMO

The perception of meaningful patterns in random arrangements and unrelated events takes place in our everyday lives, coined apophenia, synchronicity, or the experience of meaningful coincidences. However, we do not know yet what predicts this phenomenon. To investigate this, we re-analyzed a combined data set of two daily diary studies with a total of N = 169 participants (mean age 29.95 years; 54 men). We investigated if positive or negative affect (PA, NA) predicts the number of meaningful coincidences on the following day (or vice versa). By means of a cross-lagged multilevel modelling approach (Bayesian estimation) we evaluated with which of two theoretical assumptions the data are more in line. First, if meaningful coincidences are facilitated by a broader and more flexible thinking style, PA should positively predict meaningful coincidences at the following day. However, if the experience of meaningful coincidences signifies a strategy to cope with negative feeling states, NA should predict the experience of meaningful coincidences during the following day. In favour of a more flexible thinking style, we found that PA predicted the number of perceived coincidences the following day. We did not find any effect for NA, and therefore, no evidence arguing for the coping mechanism hypothesis of meaningful coincidences.

3.
J Cogn Neurosci ; 35(10): 1681-1692, 2023 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-37432751

RESUMO

Recognizing and perceiving meaningful patterns in an ever-changing environment is fundamental to (human) beings. Apophenia, patternicity, and the propensity to perceive meaningful coincidences might result from the human brain working as a prediction machine that constantly matches sensory information to prior expectations. The propensity for Type I errors varies between people and, at its extreme, is associated with symptoms of schizophrenia. However, on a nonclinical level seeing meaning in randomness might be benevolent and was found to be associated with creativity and openness. However, hardly any neuroscientific investigation has examined EEG patterns of the propensity to experience meaningful coincidences in this manner. We hypothesized deviations in brain functions as one potential reason why some people experience more meaning in random arrangements than others. The gating by inhibition theory suggests that alpha power increases represent basic control mechanisms of sensory processes during varying task requirements. We found that people perceiving more meaningful coincidences had higher alpha power during an eyes-closed versus eyes-opened condition compared with people experiencing less meaningful coincidences. This indicates deviations in the sensory inhibition mechanism of the brain, which are critically relevant for higher cognitive functions. Applying Bayesian statistics, we replicated this finding in another independent sample.


Assuntos
Encéfalo , Cognição , Humanos , Teorema de Bayes , Eletroencefalografia
4.
Curr Psychol ; 42(7): 5793-5803, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36987512

RESUMO

This study investigates the link between the revised reinforcement sensitivity theory (RST) and individuals' capacity to spontaneously invent alternate appraisals for aversive events. Eighty-two women completed the Reappraisal Inventiveness Test for anger-eliciting situations, and quantity and quality of reappraisal ideas were correlated with BIS, BAS, and FFFS sensitivity (RST-Personality Questionnaire). Results revealed that high BIS and high FFFS reduced the total number of reappraisal ideas, indicating that combined heightened sensitivity of the two avoidance systems may deplete individuals' repertoire of potential reappraisals. RST effects on the quality of generated reappraisals were also found. High BIS and low BAS lowered individuals' propensity to produce positive re-interpretations, which are considered a more adaptive reappraisal tactic. High FFFS sensitivity was linked to a lower preference for problem-oriented reappraisals. This study underlines that certain interactions of motivational subsystems may be particularly detrimental for successful reappraisal of anger-eliciting events. Our findings reveal potential links between revised RST effects and adaptive emotion regulation.

5.
Curr Psychol ; 42(19): 16176-16190, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37554948

RESUMO

This interdisciplinary study examined the structure of humor creation in the specific context of efforts to positively reappraise stressful situations for effective coping. In a sample of n = 101 participants, a performance test was used to assess the quantity (fluency, number of generated ideas that qualified as humor) and quality (rated funniness) of humor creation in cognitive reappraisal. Linguistic mechanisms were identified and quantified using cognitive-linguistic methods of corpus analysis, and their employment was correlated with humor production performance on the level of the individual. Almost all individuals were able to come up with reappraisal ideas that qualified as humorous. Depressive symptoms, a negative mood state, and high perceptions of threat did not compromise the participants' capability to create humor. Individuals who were more serious-minded as a trait produced ideas that were rated as less funny, but their basic ability to create humor was unaffected. Metonymy (a contiguity-based principle of meaning extension) emerged as by far the most prominent semantic mechanism in the creation of humorous re-interpretations. Furthermore, its use was related to good humor creation performance in terms of quantity and quality, which is in line with its assumed importance in the extension of meaning in general and the creation of humor in particular. Further effective linguistic mechanisms and conceptual phenomena were identified. The empirical data may be valuable for the development of interventions involving the creation of humorous ideas for cognitive reappraisal.

6.
Brain Cogn ; 163: 105913, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36087513

RESUMO

Malevolent creativity is characterized by malicious interpersonal goals aimed at damaging others. Neurocognitive processing patterns of negative social-emotional signals may explain variance in this disruptive phenomenon. This study examined whether individuals' brain responses to emotional expressions of others are linked to their capacity of malevolent creativity in a psychometric test. State-dependent changes of prefrontal-posterior EEG coherence were recorded while n = 60 participants listened to other people's anger, desperate crying, and laughter. These EEG measures were used to indicate affective dispositions towards emotional absorption (decreased coherence) or detachment (increased coherence) from others' emotional states. Results showed that higher malevolent creativity was reflected in relatively greater increases of EEG coherence during others' expressions of anger, and conversely, relatively greater decreases of EEG coherence during others' desperate crying. This pattern suggests that the generation of creative ideas for malicious, antisocial purposes may be partly attributed to an indifference towards others' aggression and potential retaliation, and partly to finding others' adversity rewarding on a neuronal level, increasing the quantity of ideas and the chances of hurting others. This first study linking malevolent creativity to social-emotional brain functions may offer novel insights into affective dispositions that may help understand individuals' potential for creative destruction.


Assuntos
Criatividade , Emoções , Ira , Transtorno da Personalidade Antissocial , Encéfalo/fisiologia , Emoções/fisiologia , Humanos
7.
Proc Natl Acad Sci U S A ; 115(5): 1087-1092, 2018 01 30.
Artigo em Inglês | MEDLINE | ID: mdl-29339474

RESUMO

People's ability to think creatively is a primary means of technological and cultural progress, yet the neural architecture of the highly creative brain remains largely undefined. Here, we employed a recently developed method in functional brain imaging analysis-connectome-based predictive modeling-to identify a brain network associated with high-creative ability, using functional magnetic resonance imaging (fMRI) data acquired from 163 participants engaged in a classic divergent thinking task. At the behavioral level, we found a strong correlation between creative thinking ability and self-reported creative behavior and accomplishment in the arts and sciences (r = 0.54). At the neural level, we found a pattern of functional brain connectivity related to high-creative thinking ability consisting of frontal and parietal regions within default, salience, and executive brain systems. In a leave-one-out cross-validation analysis, we show that this neural model can reliably predict the creative quality of ideas generated by novel participants within the sample. Furthermore, in a series of external validation analyses using data from two independent task fMRI samples and a large task-free resting-state fMRI sample, we demonstrate robust prediction of individual creative thinking ability from the same pattern of brain connectivity. The findings thus reveal a whole-brain network associated with high-creative ability comprised of cortical hubs within default, salience, and executive systems-intrinsic functional networks that tend to work in opposition-suggesting that highly creative people are characterized by the ability to simultaneously engage these large-scale brain networks.


Assuntos
Mapeamento Encefálico/métodos , Encéfalo/fisiologia , Conectoma/métodos , Criatividade , Pensamento , Adulto , Comportamento , Encéfalo/anatomia & histologia , Cognição , Feminino , Humanos , Modelos Lineares , Imageamento por Ressonância Magnética , Masculino , Rede Nervosa , Adulto Jovem
8.
J Creat Behav ; 55(3): 710-722, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34690361

RESUMO

Research is currently witnessing more investigations into malevolent creativity-creativity that is used to intentionally harm others. Inspired by previous methods to measure malevolent creativity, in the present study, we introduce a real-world behavioral task designed to capture individuals' capacity for using creativity for the purpose of attaining malevolent goals in response to everyday, provocative situations. In a sample of 105 students, we found malevolent creativity positively correlated with fluency in conventional creative ideation, as well as with self-reported typical malevolent creativity behavior in daily life. Moreover, performance on the malevolent creativity task showed positive correlations with the maladaptive personality trait of antagonism (PID-5) as well as individuals' state anger at the beginning of the experiment. Further, our multiple regression analysis revealed that conventional creative ideation, antagonistic personality, and state anger all explained unique, non-overlapping variance in the capacity for implementing malevolent creativity. As a whole, these findings suggest that different cognitive and affective factors, along with specific personality traits may each contribute to the expression of malevolent creativity in distinct ways. Future investigations striving to further decode the destructive potential of individuals toward others may benefit from this validated behavioral measurement approach to malevolent creativity.

9.
Neuroimage ; 210: 116586, 2020 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-32001370

RESUMO

Creative thinking relies on the ability to make remote associations and fruitfully combine unrelated concepts. Hence, original associations and bi-associations (i.e., associations to one and two concepts, respectively) are considered elementary cognitive processes of creative cognition. In this work, we investigated the cognitive and brain mechanisms underlying these association processes with tasks that asked for original associations to either one or two adjective stimuli. Study 1 showed that the generation of more original associations and bi-associations was related to several indicators of creativity, corroborating the validity of these association performances as basic processes underlying creative cognition. Study 2 assessed brain activity during performance of these association tasks by means of fMRI. The generation of original versus common associations was related to higher activation in bilateral lingual gyri suggesting that cued search for remote representatives of given properties are supported by visually-mediated search strategies. Parametric analyses further showed that the generation of more original associations involved activation of the left inferior frontal cortex and the left ventromedial prefrontal cortex, which are consistently implicated in constrained retrieval and evaluation processes, and relevant for making distant semantic connections. Finally, the generation of original bi-associations involved higher activation in bilateral hippocampus and inferior parietal lobe, indicating that conceptual combination recruits episodic simulation processes. Together, these findings suggest that the generation of verbally cued, original associations relies not only on verbal semantic memory but involves mental imagery and episodic simulation, offering new insights in the nuanced interplay of memory systems in creative thought.


Assuntos
Associação , Mapeamento Encefálico , Córtex Cerebral/fisiologia , Criatividade , Hipocampo/fisiologia , Imaginação/fisiologia , Idioma , Memória Episódica , Adolescente , Adulto , Córtex Cerebral/diagnóstico por imagem , Sinais (Psicologia) , Feminino , Hipocampo/diagnóstico por imagem , Humanos , Imageamento por Ressonância Magnética , Masculino , Adulto Jovem
10.
Neuroimage ; 213: 116695, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32142882

RESUMO

Humor comprehension is increasingly recognized as showing parallels to more conventional creative cognition; yet our understanding of brain mechanisms underlying creative cognition in a humorous context is still limited. The present study addressed this issue by investigating functional patterns of EEG alpha activity while 93 participants viewed nonverbal humorous cartoons until they indicated having recognized the punch line, and subsequently vocalized their idea as to what constituted it. In a similar fashion, EEG was also assessed during performance of the Alternate Uses Task (AUT), in order to identify similarities and differences in EEG alpha activity implicated in conventional creative cognition vs. humor comprehension. Analyses revealed a pattern of robust task-related alpha power increases in both tasks, which were markedly more right-lateralized at ventral fronto-temporal sites in the humor task as compared to the AUT. Findings are interpreted in line with recent literature on the functional role of alpha activity in the creativity domain. Altogether, this study adds further evidence to the particular role of EEG alpha oscillations in creative cognition and supports the idea that conventional creative ideation and the comprehension of humor share neural mechanisms affiliated to creative cognition.


Assuntos
Ritmo alfa/fisiologia , Encéfalo/fisiologia , Compreensão/fisiologia , Criatividade , Senso de Humor e Humor como Assunto , Adolescente , Adulto , Feminino , Humanos , Masculino , Adulto Jovem
11.
Neuroimage ; 207: 116395, 2020 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-31770635

RESUMO

The neuroscientific investigation of creative cognition has advanced by considering the functional connectivity between brain regions and its dynamic changes over time, which are consistent with stages in the ideation process. Surprisingly, although the communication between neuronal networks takes place in a time-scale of milliseconds, EEG studies investigating a time-course in cortico-cortical communication during creative ideation are rare and findings are typically restricted to the verbal domain. Therefore, this study examined functional coupling using EEG (task-related phase-locking in the upper-alpha range) during creative thinking in the figural domain. Using an innovative computerized experimental paradigm, we specifically investigated the stage of idea generation and the stage of idea elaboration in an adapted picture completion task. The findings confirmed a hypothesized increase of functional coupling from idea generation to elaboration, which was most pronounced in frontal-central as well as frontal-temporal networks. The connectivity in the frontal-parietal/occipital network already increased during idea generation and remained constant during elaboration. Importantly, more original participants generally showed higher functional connectivity in all brain networks. This elevated functional coupling with frontal brain regions might reflect increased executive processes related to internal attention, motor planning, and semantic selection processes supporting highly original thought in the figural domain.


Assuntos
Atenção/fisiologia , Encéfalo/fisiologia , Cognição/fisiologia , Criatividade , Pensamento/fisiologia , Adulto , Mapeamento Encefálico/métodos , Função Executiva/fisiologia , Características da Família , Feminino , Humanos , Masculino , Adulto Jovem
12.
Hum Brain Mapp ; 40(3): 765-776, 2019 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-30267634

RESUMO

The present study investigated whether children with a typical dyslexia profile and children with isolated spelling deficits show a distinct pattern of white matter alteration compared with typically developing peers. Relevant studies on the topic are scarce, rely on small samples, and often suffer from the limitations of conventional tensor-based methods. The present Constrained Spherical Deconvolution study includes 27 children with typical reading and spelling skills, 21 children with dyslexia and 21 children with isolated spelling deficits. Group differences along major white matter tracts were quantified utilizing the Automated Fiber Quantification software and a lateralization index was calculated in order to investigate the structural asymmetry of the tracts. The two deficit groups mostly displayed different patterns of white matter alterations, located in the bilateral inferior longitudinal fasciculi, right superior longitudinal fasciculus, and cingulum for the group with dyslexia and in the left arcuate fasciculus for the group with isolated spelling deficits. The two deficit groups differed also with respect to structural asymmetry. Children with dyslexia did not show the typical leftward asymmetry of the arcuate fasciculus, whereas the group with isolated spelling deficits showed absent rightward asymmetry of the inferior fronto-occipital fasciculus. This study adds evidence to the notion that different profiles of combined or isolated reading and spelling deficits are associated with different neural signatures.


Assuntos
Encéfalo/patologia , Dislexia/patologia , Transtornos do Desenvolvimento da Linguagem/patologia , Vias Neurais/patologia , Substância Branca/patologia , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico/métodos , Criança , Imagem de Tensor de Difusão/métodos , Dislexia/diagnóstico por imagem , Feminino , Humanos , Transtornos do Desenvolvimento da Linguagem/diagnóstico por imagem , Masculino , Vias Neurais/diagnóstico por imagem , Substância Branca/diagnóstico por imagem
13.
Hum Brain Mapp ; 40(3): 755-764, 2019 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-30259600

RESUMO

This fMRI study investigated brain activity while soccer players were imagining creative moves in real soccer decision-making situations. After presenting brief video clips of a soccer scene, participants had to imagine themselves as the acting player and think either of a creative or obvious move that might lead to a goal. Findings revealed stronger activation during trials in which the generation of obvious moves was required, relative to trials requiring creative moves. The reversed contrast (creative > obvious) showed no significant effects. Activations were mainly left-lateralized, primarily involving the cuneus, middle temporal gyrus, and the rolandic operculum, which are known to support the processing of multimodal input from different sensory, motor and perceptual sources. Interestingly, more creative solutions in the soccer task were associated with smaller contrast values for the activation difference between obvious and creative trials, or even with more activation in the latter. Furthermore, higher trait creative potential (as assessed by a figural creativity test) was associated with stronger activation differences between both conditions. These findings suggest that with increasing soccer-specific creative task performance, the processing of the manifold information provided by the soccer scenario becomes increasingly important, while in individuals with higher trait creative potential these processes were recruited to a minor degree. This study showed that soccer-specific creativity tasks modulate activation levels in a network of regions supporting various cognitive functions such as semantic information processing, visual and motor imagery, and the processing and integration of sensorimotor and somatosensory information.


Assuntos
Encéfalo/fisiologia , Criatividade , Tomada de Decisões/fisiologia , Imaginação/fisiologia , Futebol , Adolescente , Adulto , Mapeamento Encefálico/métodos , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Adulto Jovem
14.
Cogn Affect Behav Neurosci ; 19(4): 1012-1021, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-30756348

RESUMO

Although there exists increasing knowledge about brain correlates underlying creative ideation in general, the specific neurocognitive mechanisms implicated in different stages of the creative thinking process are still under-researched. Some recent EEG studies suggested that alpha power during creative ideation varies as a function of time, with the highest levels of alpha power after stimulus onset and at the end of the creative thinking process. The main aim of the present study was to replicate and extend this finding by applying an individual differences approach, and by investigating functional coupling between long distance cortical sites during the process of creative ideation. Eighty-six participants performed the Alternate Uses (AU) task during EEG assessment. Results revealed that more original people showed increased alpha power after stimulus onset and before finalizing the process of idea generation. This U-shaped alpha power pattern was accompanied by an early increase in functional communication between frontal and parietal-occipital sites during the creative thinking process, putatively indicating activation of top-down executive control processes. Participants with lower originality showed no significant time-related variation in alpha power and a delayed increase in long distance functional communication. These findings are in line with dual process models of creative ideation and support the idea that increased alpha power at the beginning of the creative ideation process may indicate more associative modes of thinking and memory processes, while the alpha increases at later stages may indicate executive control processes, associated with idea elaboration/evaluation.


Assuntos
Ritmo alfa/fisiologia , Sincronização Cortical/fisiologia , Criatividade , Função Executiva/fisiologia , Individualidade , Adolescente , Adulto , Feminino , Humanos , Masculino , Fatores de Tempo , Adulto Jovem
15.
Brain Cogn ; 132: 108-117, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30980988

RESUMO

Difficulties in emotion regulation, particularly in using adaptive regulation strategies such as cognitive reappraisal, are a commonly observed correlate of paranoia. While it has been suggested that poor implementation of cognitive reappraisal in dealing with aversive events precedes the onset of subclinical paranoid thinking, there is little empirical research on neural activation patterns during cognitive reappraisal efforts that might indicate vulnerability towards paranoid thinking. Prefrontal EEG alpha asymmetry changes were recorded while n = 57 participants were generating alternative appraisals of anger-eliciting events, and were linked to a behavioral measure of basic cognitive reappraisal capacity and self-reported paranoia proneness (assessed by personality facets of hostility and suspiciousness; Personality Inventory for DSM-5). Mediation analysis revealed that less left-lateralized activation at ventrolateral prefrontal sites during reappraisal efforts predicted a higher degree of paranoia proneness. This relationship was mediated through poorer cognitive reappraisal capacity. Matching previous evidence, findings suggest that inappropriate brain activation during reappraisal efforts impairs individuals' capacity to come up with effective alternative interpretations for anger-evoking situations, which may accentuate personality features related to increased paranoid thinking. The findings add to our understanding of neurally underpinned impairments in the capacity to generate cognitive reappraisals and their link to maladaptive personality and behavior.


Assuntos
Ira , Cognição , Personalidade , Córtex Pré-Frontal , Adolescente , Adulto , Ritmo alfa , Eletroencefalografia , Emoções , Feminino , Voluntários Saudáveis , Humanos , Masculino , Transtornos Paranoides , Inventário de Personalidade , Autocontrole , Adulto Jovem
16.
Eur Arch Psychiatry Clin Neurosci ; 269(3): 361-364, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29942979

RESUMO

Following our previous cross-sectional analysis, indicating age-related improvements of response inhibition in a random-motor-generation task (MPT) in adolescents with Asperger syndrome (AS), the present study reports data from a 2.5-year follow-up examination in the original sample. We found more marked improvements within the follow-up interval in younger AS children, while older AS boys as well as typically developing (TD) boys remained at a relatively constant level throughout. The current longitudinal study further substantiates the notion that AS children (on average) catch up with TD children when they grow older as regards the basic inhibition of developing routine response patterns.


Assuntos
Desenvolvimento do Adolescente/fisiologia , Síndrome de Asperger/fisiopatologia , Desenvolvimento Infantil/fisiologia , Inibição Psicológica , Desempenho Psicomotor/fisiologia , Adolescente , Fatores Etários , Criança , Humanos , Estudos Longitudinais , Masculino
17.
Conscious Cogn ; 76: 102832, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31622884

RESUMO

There are ample inter-individual differences in the frequency with which people perceive meaningful coincidences. Previous research has identified increased proactive interference, that is a reduced working memory capacity, as one possible mechanism associated with this phenomenon. The present study aimed at extending this finding into the domain of neuroscience, (1) by assessing EEG alpha oscillations during the retention of information, (2) by replicating the behavioral link between meaningful coincidences and proactive interference. In a sample of 52 participants, the behavioral replication was successful. Furthermore, participants who perceived more meaningful coincidences showed higher alpha power increases at parietal-occipital sites, and at the same time, displayed lower alpha power increases at frontal areas, during retention of information. This neurophysiological activation pattern further underlines the assumption that participants who perceive more meaningful coincidences show lower working memory capacities, since increased alpha power at parietal areas reflects a higher load on working memory demands.


Assuntos
Ritmo alfa/fisiologia , Atenção/fisiologia , Lobo Frontal/fisiologia , Memória de Curto Prazo/fisiologia , Lobo Occipital/fisiologia , Lobo Parietal/fisiologia , Retenção Psicológica/fisiologia , Adolescente , Adulto , Feminino , Humanos , Masculino , Adulto Jovem
18.
Hum Brain Mapp ; 39(1): 393-406, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-29058352

RESUMO

The investigation of neurocognitive processes underlying more real-life creative behavior is among the greatest challenges in creativity research. In this fMRI study, we addressed this issue by investigating functional patterns of brain activity while participants were required to be creative in an affective context. Affective creativity was assessed in terms of individual's inventiveness in generating alternative appraisals for anger-evoking events, which has recently emerged as a new ability concept in cognitive reappraisal research. In addition, a classic divergent thinking task was administered. Both creativity tasks yielded strong activation in left prefrontal regions, indicating their shared cognitive processing demands like the inhibition of prepotent responses, shifting between different perspectives and controlled memory retrieval. Regarding task-specific differences, classic creative ideation activated a characteristic divergent thinking network comprising the left supramarginal, inferior temporal, and inferior frontal gyri. Affective creativity on the other hand specifically recruited the right superior frontal gyrus, presumably involved in the postretrieval monitoring of reappraisal success, and core hubs of the default-mode network, which are also implicated in social cognition. As a whole, by taking creativity research to the realm of emotion, this study advances our understanding of how more real-life creativity is rooted in the brain. Hum Brain Mapp 39:393-406, 2018. © 2017 Wiley Periodicals, Inc.


Assuntos
Encéfalo/fisiologia , Criatividade , Emoções/fisiologia , Adolescente , Adulto , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Rememoração Mental/fisiologia , Testes Neuropsicológicos , Adulto Jovem
19.
Brain Cogn ; 128: 1-6, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30393122

RESUMO

A growing body of evidence suggests that creativity is associated with functional connectivity across widespread neural networks, including regions associated with executive processes and cognitive control, along with regions linked to the default mode network (DMN) of the brain. This study investigated whether a three-week verbal divergent thinking training modulates functional connectivity in networks that have been related to creativity. In a task-based functional imaging study (Fink et al., 2015), the employed creativity training was found to modulate brain activity in regions closely associated with semantic memory demands. Hence, the specific aim of this study was to assess whether the observed task-related brain changes relate to changes in functional connectivity patterns of the brain at rest, as assessed by independent component analysis. The participants were tested at three time points with an inter-test interval of four weeks each, and randomly assigned to two groups which received the verbal creativity training time-delayed. Findings revealed that successful training of verbal creativity was mirrored by functional connectivity changes in the DMN, sensorimotor and auditory network, and the attention network. These rather global changes in resting-state functional connectivity supplement the findings of task-based fMRI, where changes in more task specific brain regions were found.


Assuntos
Encéfalo/diagnóstico por imagem , Criatividade , Pensamento/fisiologia , Adulto , Atenção/fisiologia , Mapeamento Encefálico/métodos , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Memória/fisiologia , Adulto Jovem
20.
BMC Psychiatry ; 18(1): 10, 2018 01 17.
Artigo em Inglês | MEDLINE | ID: mdl-29343237

RESUMO

BACKGROUND: Burnout is generally perceived a unified disorder with homogeneous symptomatology across people (exhaustion, cynicism, and reduced professional efficacy). However, increasing evidence points to intra-individual patterns of burnout symptoms in non-clinical samples such as students, athletes, healthy, and burned-out employees. Different burnout subtypes might therefore exist. Yet, burnout subtypes based on burnout profiles have hardly been explored in clinical patients, and the samples investigated in previous studies were rather heterogeneous including patients with various physical, psychological, and social limitations, symptoms, and disabilities. Therefore, the aim of this study is to explore burnout subtypes based on burnout profiles in clinically diagnosed burnout patients enrolled in an employee rehabilitation program, and to investigate whether the subtypes differ in depression, recovery/resources-stress balance, and sociodemographic characteristics. METHODS: One hundred three patients (66 women, 37 men) with a clinical burnout diagnosis, who were enrolled in a 5 week employee rehabilitation program in two specialized psychosomatic clinics in Austria, completed a series of questionnaires including the Maslach Burnout Inventory - General Survey (MBI-GS), the Beck Depression Inventory, and the Recovery-Stress-Questionnaire for Work. Cluster analyses with the three MBI-GS subscales as clustering variables were used to identify the burnout subtypes. Subsequent multivariate/univariate analysis of variance and Pearson chi-square tests were performed to investigate differences in depression, recovery/resources-stress balance, and sociodemographic characteristics. RESULTS: Three different burnout subtypes were discovered: the exhausted subtype, the exhausted/cynical subtype, and the burned-out subtype. The burned-out subtype and the exhausted/cynical subtype showed both more severe depression symptoms and a worse recovery/resources-stress balance than the exhausted subtype. Furthermore, the burned-out subtype was more depressed than the exhausted/cynical subtype, but no difference was observed between these two subtypes with regard to perceived stress, recovery, and resources. Sociodemographic characteristics were not associated with the subtypes. CONCLUSIONS: The present study indicates that there are different subtypes in clinical burnout patients (exhausted, exhausted/cynical, and burned-out), which might represent patients at different developmental stages in the burnout cycle. Future studies need to replicate the current findings, investigate the stability of the symptom patterns, and examine the efficacy of rehabilitation interventions in different subtypes.


Assuntos
Esgotamento Profissional/diagnóstico , Esgotamento Profissional/psicologia , Adulto , Áustria , Esgotamento Profissional/reabilitação , Distribuição de Qui-Quadrado , Estudos Transversais , Depressão/diagnóstico , Depressão/etiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Escalas de Graduação Psiquiátrica , Fatores Socioeconômicos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA