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Figueroa C, Villafuerte M, Straube B, Ferreyra J, Navarro C, Runco Leal V, Bridoux G. The role of defects in the persistent photoconductivity of BaSnO 3thin films. J Phys Condens Matter 2023; 35:165301. [PMID: 36796107 DOI: 10.1088/1361-648x/acbcb7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Time-dependent photoconductivity (PC) and PC spectra have been studied in oxygen deficient BaSnO3thin films grown on different substrates. X-ray spectroscopy measurements show that the films have epitaxially grown on MgO and SrTiO3substrates. While on MgO the films are nearly unstrained, on SrTiO3the resulting film is compressive strained in the plane. Electrical conductivity in dark is increased in one order of magnitude for the films on SrTiO3in comparison to the one on MgO. This leads to an increase of PC in the latter film in at least one order of magnitude. PC spectra show a direct gap with a value ofEG=3.9eV for the film grown on MgO while on SrTiO3EG=3.36eV. For both type of films, time-dependent PC curves show a persistent behavior after illumination is removed. These curves have been fitted employing an analytical procedure based on the frame of PC as a transmission phenomenon showing the relevant role of donor and acceptor defects as carrier traps and as a source of carriers. This model also suggests that in the BaSnO3film on SrTiO3more defects are created probably due to strain. This latter effect can also explain the different transition values obtained for both type of films.
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Affiliation(s)
- C Figueroa
- Laboratorio de Física del Sólido, INFINOA (CONICET-UNT), Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, 4000 San Miguel de Tucumán, Argentina
| | - M Villafuerte
- Laboratorio de Física del Sólido, INFINOA (CONICET-UNT), Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, 4000 San Miguel de Tucumán, Argentina
| | - B Straube
- Laboratorio de Física del Sólido, INFINOA (CONICET-UNT), Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, 4000 San Miguel de Tucumán, Argentina
| | - J Ferreyra
- Laboratorio de Física del Sólido, INFINOA (CONICET-UNT), Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, 4000 San Miguel de Tucumán, Argentina
| | - C Navarro
- Institute of Inorganic Chemistry, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, 4000 San Miguel de Tucumán, Argentina
| | - V Runco Leal
- Institute of Inorganic Chemistry, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, 4000 San Miguel de Tucumán, Argentina
| | - G Bridoux
- Laboratorio de Física del Sólido, INFINOA (CONICET-UNT), Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, 4000 San Miguel de Tucumán, Argentina
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Wroblewski A, He Y, Straube B. Dynamic causal modelling suggests impaired effective connectivity in schizophrenia spectrum disorders during gesture-speech integration. PHARMACOPSYCHIATRY 2020. [DOI: 10.1055/s-0039-3403024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - Y He
- Universität Marburg, Germany
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Abstract
INTRODUCTION Schizotypy is a personality trait characterized by subclinical schizophrenia symptoms. Individuals with schizophrenia typically display behavioral mentalizing deficits and altered neural correlates during mentalizing. While schizotypy has been inconsistently related to behavioral mentalizing skills, its neural correlates of mentalizing are understudied so far. With this study we tested the association between schizotypy traits in healthy subjects and mentalizing-related neural correlates to provide new insights into neural processes associated with subclinical schizophrenia traits. METHODS Brain activation was measured using fMRI during an interactive mentalizing paradigm (Prisoner's Dilemma Game) in 164 healthy subjects. The Schizotypal Personality Questionnaire (SPQ-B) was administered to assess the three dimensions of schizotypy, i.e., cognitive-perceptual, interpersonal and disorganized. RESULTS We found that interpersonal schizotypy was significantly negatively correlated with brain activation in bilateral precunei and right caudate nucleus (among others) during mentalizing. By contrast, disorganized schizotypy was significantly positively correlated with mentalizing-associated neural activation in right precuneus, left middle cingulate cortex and right cerebellar hemisphere. No significant associations for cognitive-perceptual schizotypy and the SPQ-B total score were found. DISCUSSION Our study showed that interpersonal and disorganized schizotypy are associated with neural correlates of mentalizing in brain regions that are involved in self-processing and mentalizing. These brain regions have also been linked to mentalizing in schizophrenia.
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Affiliation(s)
- H Acosta
- Department of Psychiatry and Psychotherapy, Philipps-University of Marburg, Germany; The FinnBrain Birth Cohort Study, Turku Brain and Mind Center, Department of Clinical Medicine, University of Turku, Finland.
| | - B Straube
- Department of Psychiatry and Psychotherapy, Philipps-University of Marburg, Germany
| | - T Kircher
- Department of Psychiatry and Psychotherapy, Philipps-University of Marburg, Germany
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Via E, Fullana MA, Goldberg X, Tinoco-González D, Martínez-Zalacaín I, Soriano-Mas C, Davey CG, Menchón JM, Straube B, Kircher T, Pujol J, Cardoner N, Harrison BJ. Ventromedial prefrontal cortex activity and pathological worry in generalised anxiety disorder. Br J Psychiatry 2018; 213:437-443. [PMID: 29739481 DOI: 10.1192/bjp.2018.65] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Pathological worry is a hallmark feature of generalised anxiety disorder (GAD), associated with dysfunctional emotional processing. The ventromedial prefrontal cortex (vmPFC) is involved in the regulation of such processes, but the link between vmPFC emotional responses and pathological v. adaptive worry has not yet been examined.AimsTo study the association between worry and vmPFC activity evoked by the processing of learned safety and threat signals. METHOD In total, 27 unmedicated patients with GAD and 56 healthy controls (HC) underwent a differential fear conditioning paradigm during functional magnetic resonance imaging. RESULTS Compared to HC, the GAD group demonstrated reduced vmPFC activation to safety signals and no safety-threat processing differentiation. This response was positively correlated with worry severity in GAD, whereas the same variables showed a negative and weak correlation in HC. CONCLUSIONS Poor vmPFC safety-threat differentiation might characterise GAD, and its distinctive association with GAD worries suggests a neural-based qualitative difference between healthy and pathological worries.Declaration of interestNone.
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Affiliation(s)
- E Via
- Department of Mental Health,Corporació Sanitaria Parc Taulí-i3PT,CIBERSAM,Sabadell,Spain
| | - M A Fullana
- Anxiety Unit,Institute of Neuropsychiatry and Addictions,Hospital del Mar,CIBERSAM,Barcelona,Spain
| | - X Goldberg
- Department of Mental Health,Corporació Sanitaria Parc Taulí-i3PT,CIBERSAM,Sabadell,Spain
| | | | - I Martínez-Zalacaín
- Department of Psychiatry,Bellvitge University Hospital-IDIBELL,CIBERSAM,Barcelona,Spain
| | - C Soriano-Mas
- Department of Psychiatry,Bellvitge University Hospital-IDIBELL,CIBERSAM,Barcelona,Spain
| | - C G Davey
- Melbourne Neuropsychiatry Centre,Department of Psychiatry,The University of Melbourne and Melbourne Health,Victoria,Australia
| | - J M Menchón
- Department of Psychiatry,Bellvitge University Hospital-IDIBELL,CIBERSAM,Barcelona,Spain
| | - B Straube
- Department of Psychiatry and Psychotherapy,Philipps-University Marburg,Marburg,Germany
| | - T Kircher
- Department of Psychiatry and Psychotherapy,Philipps-University Marburg,Marburg,Germany
| | - J Pujol
- MRI Research Unit,Hospital del Mar,CIBERSAM G21,Barcelona,Spain
| | - N Cardoner
- Department of Mental Health,Corporació Sanitaria Parc Taulí-i3PT,CIBERSAM,Sabadell,Spain
| | - B J Harrison
- Melbourne Neuropsychiatry Centre,Department of Psychiatry,The University of Melbourne and Melbourne Health,Victoria,Australia
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Lueken U, Kuhn M, Yang Y, Straube B, Kircher T, Wittchen HU, Pfleiderer B, Arolt V, Wittmann A, Ströhle A, Weber H, Reif A, Domschke K, Deckert J, Lonsdorf TB. Modulation of defensive reactivity by GLRB allelic variation: converging evidence from an intermediate phenotype approach. Transl Psychiatry 2017; 7:e1227. [PMID: 28872638 PMCID: PMC5639239 DOI: 10.1038/tp.2017.186] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 06/07/2017] [Accepted: 07/04/2017] [Indexed: 01/20/2023] Open
Abstract
Representing a phylogenetically old and very basic mechanism of inhibitory neurotransmission, glycine receptors have been implicated in the modulation of behavioral components underlying defensive responding toward threat. As one of the first findings being confirmed by genome-wide association studies for the phenotype of panic disorder and agoraphobia, allelic variation in a gene coding for the glycine receptor beta subunit (GLRB) has recently been associated with increased neural fear network activation and enhanced acoustic startle reflexes. On the basis of two independent healthy control samples, we here aimed to further explore the functional significance of the GLRB genotype (rs7688285) by employing an intermediate phenotype approach. We focused on the phenotype of defensive system reactivity across the levels of brain function, structure, and physiology. Converging evidence across both samples was found for increased neurofunctional activation in the (anterior) insular cortex in GLRB risk allele carriers and altered fear conditioning as a function of genotype. The robustness of GLRB effects is demonstrated by consistent findings across different experimental fear conditioning paradigms and recording sites. Altogether, findings provide translational evidence for glycine neurotransmission as a modulator of the brain's evolutionary old dynamic defensive system and provide further support for a strong, biologically plausible candidate intermediate phenotype of defensive reactivity. As such, glycine-dependent neurotransmission may open up new avenues for mechanistic research on the etiopathogenesis of fear and anxiety disorders.
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Affiliation(s)
- U Lueken
- Center of Mental Health, Department of Psychiatry, Psychosomatics, and Psychotherapy, University Hospital of Würzburg, Würzburg, Germany
| | - M Kuhn
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Y Yang
- Department of Psychiatry and Psychotherapy, Phillips-University Marburg, Marburg, Germany
| | - B Straube
- Department of Psychiatry and Psychotherapy, Phillips-University Marburg, Marburg, Germany
| | - T Kircher
- Department of Psychiatry and Psychotherapy, Phillips-University Marburg, Marburg, Germany
| | - H-U Wittchen
- Department of Psychology, Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - B Pfleiderer
- Department of Clinical Radiology, University Hospital Münster, Münster, Germany
| | - V Arolt
- Department of Psychiatry, University Hospital Münster, Münster, Germany
| | - A Wittmann
- Department of Psychiatry and Psychotherapy, Charité - University Medicine Berlin, Berlin, Germany
| | - A Ströhle
- Department of Psychiatry and Psychotherapy, Charité - University Medicine Berlin, Berlin, Germany
| | - H Weber
- Center of Mental Health, Department of Psychiatry, Psychosomatics, and Psychotherapy, University Hospital of Würzburg, Würzburg, Germany
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - A Reif
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - K Domschke
- Center of Mental Health, Department of Psychiatry, Psychosomatics, and Psychotherapy, University Hospital of Würzburg, Würzburg, Germany
- Department of Psychiatry and Psychotherapy, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - J Deckert
- Center of Mental Health, Department of Psychiatry, Psychosomatics, and Psychotherapy, University Hospital of Würzburg, Würzburg, Germany
| | - T B Lonsdorf
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Dolgin B, Lorite I, Kumar Y, Esquinazi P, Jung G, Straube B, Heluani SPD. Conductivity fluctuations in proton-implanted ZnO microwires. Nanotechnology 2016; 27:305702. [PMID: 27306486 DOI: 10.1088/0957-4484/27/30/305702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Electric noise can be an important limitation for applications of conducting elements in the nanometer size range. The intrinsic electrical noise of prospective materials for opto-spintronics applications like ZnO has not yet been characterized. In this study, we have investigated the conductivity fluctuations in 10 nm thick current paths produced by proton implantation of ZnO microwires at room temperature. The voltage noise under a constant dc current bias in undoped, as well as in Li-doped microwires, is characterized by [Formula: see text] power spectra with [Formula: see text]. The noise intensity scales with the square of the bias current pointing to bias-independent resistivity fluctuations as a source of the observed noise. The normalized power spectral density appears inversely proportional to the number of carriers in the probed sample volume, in agreement with the phenomenological Hooge law. For the proton-implanted ZnO microwire and at 1 Hz we obtain a normalized power spectral density as low as [Formula: see text] Hz(-1).
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Affiliation(s)
- B Dolgin
- Department of Physics, Ben Gurion University of the Negev, POB 653, 84105 Beer Sheva, Israel
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Schneider-Hassloff H, Straube B, Jansen A, Nuscheler B, Wemken G, Witt SH, Rietschel M, Kircher T. Oxytocin receptor polymorphism and childhood social experiences shape adult personality, brain structure and neural correlates of mentalizing. Neuroimage 2016; 134:671-684. [PMID: 27109357 DOI: 10.1016/j.neuroimage.2016.04.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 03/29/2016] [Accepted: 04/04/2016] [Indexed: 10/21/2022] Open
Abstract
INTRODUCTION The oxytocin system is involved in human social behavior and social cognition such as attachment, emotion recognition and mentalizing (i.e. the ability to represent mental states of oneself and others). It is shaped by social experiences in early life, especially by parent-infant interactions. The single nucleotid polymorphism rs53576 in the oxytocin receptor (OXTR) gene has been linked to social behavioral phenotypes. METHOD In 195 adult healthy subjects we investigated the interaction of OXTR rs53576 and childhood attachment security (CAS) on the personality traits "adult attachment style" and "alexithymia" (i.e. emotional self-awareness), on brain structure (voxel-based morphometry) and neural activation (fMRI) during an interactive mentalizing paradigm (prisoner's dilemma game; subgroup: n=163). RESULTS We found that in GG-homozygotes, but not in A-allele carriers, insecure childhood attachment is - in adulthood - associated with a) higher attachment-related anxiety and alexithymia, b) higher brain gray matter volume of left amygdala and lower volumes in right superior parietal lobule (SPL), left temporal pole (TP), and bilateral frontal regions, and c) higher mentalizing-related neural activity in bilateral TP and precunei, and right middle and superior frontal gyri. Interaction effects of genotype and CAS on brain volume and/or function were associated with individual differences in alexithymia and attachment-related anxiety. Interactive effects were in part sexually dimorphic. CONCLUSION The interaction of OXTR genotype and CAS modulates adult personality as well as brain structure and function of areas implicated in salience processing and mentalizing. Rs53576 GG-homozygotes are partially more susceptible to childhood attachment experiences than A-allele carriers.
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Affiliation(s)
- H Schneider-Hassloff
- Department of Psychiatry and Psychotherapy, Philipps University Marburg, Germany.
| | - B Straube
- Department of Psychiatry and Psychotherapy, Philipps University Marburg, Germany
| | - A Jansen
- Department of Psychiatry and Psychotherapy, Philipps University Marburg, Germany
| | - B Nuscheler
- Department of Psychiatry and Psychotherapy, Philipps University Marburg, Germany
| | - G Wemken
- Institute of Psychology, Social Psychology, Philipps University Marburg, Germany
| | - S H Witt
- Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Germany
| | - M Rietschel
- Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Germany
| | - T Kircher
- Department of Psychiatry and Psychotherapy, Philipps University Marburg, Germany
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Straube B, Reif A, Richter J, Lueken U, Weber H, Arolt V, Jansen A, Zwanzger P, Domschke K, Pauli P, Konrad C, Gerlach AL, Lang T, Fydrich T, Alpers GW, Ströhle A, Wittmann A, Pfleiderer B, Wittchen HU, Hamm A, Deckert J, Kircher T. The functional -1019C/G HTR1A polymorphism and mechanisms of fear. Transl Psychiatry 2014; 4:e490. [PMID: 25514753 PMCID: PMC4270311 DOI: 10.1038/tp.2014.130] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 10/23/2014] [Accepted: 10/26/2014] [Indexed: 01/01/2023] Open
Abstract
Serotonin receptor 1A gene (HTR1A) knockout mice show pronounced defensive behaviour and increased fear conditioning to ambiguous conditioned stimuli. Such behaviour is a hallmark of pathological human anxiety, as observed in panic disorder with agoraphobia (PD/AG). Thus, variations in HTR1A might contribute to neurophysiological differences within subgroups of PD/AG patients. Here, we tested this hypothesis by combining genetic with behavioural techniques and neuroimaging. In a clinical multicentre trial, patients with PD/AG received 12 sessions of manualized cognitive-behavioural therapy (CBT) and were genotyped for HTR1A rs6295. In four subsamples of this multicentre trial, exposure behaviour (n=185), defensive reactivity measured using a behavioural avoidance test (BAT; before CBT: n=245; after CBT: n=171) and functional magnetic resonance imaging (fMRI) data during fear conditioning were acquired before and after CBT (n=39). HTR1A risk genotype (GG) carriers more often escaped during the BAT before treatment. Exploratory fMRI results suggest increased activation of the amygdala in response to threat as well as safety cues before and after treatment in GG carriers. Furthermore, GG carriers demonstrated reduced effects of CBT on differential conditioning in regions including the bilateral insulae and the anterior cingulate cortex. Finally, risk genotype carriers demonstrated reduced self-initiated exposure behaviour to aversive situations. This study demonstrates the effect of HTR1A variation on defensive behaviour, amygdala activity, CBT-induced neural plasticity and normalization of defence behaviour in PD/AG. Our results, therefore, translate evidence from animal studies to humans and suggest a central role for HTR1A in differentiating subgroups of patients with anxiety disorders.
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Affiliation(s)
- B Straube
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany,Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Rudolf-Bultmann-Strasse 8, 35039 Marburg, Germany. E-mail:
| | - A Reif
- Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany
| | - J Richter
- Department of Biological and Clinical Psychology, University of Greifswald, Greifswald, Germany
| | - U Lueken
- Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - H Weber
- Department of Biological and Clinical Psychology, University of Greifswald, Greifswald, Germany
| | - V Arolt
- Department of Psychiatry, University of Münster, Münster, Germany
| | - A Jansen
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
| | - P Zwanzger
- Department of Psychiatry, University of Münster, Münster, Germany
| | - K Domschke
- Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany
| | - P Pauli
- Department of Psychology, University of Würzburg, Würzburg, Germany
| | - C Konrad
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany,Department of Psychiatry, University of Münster, Münster, Germany
| | - A L Gerlach
- Department of Psychology, University of Cologne, Cologne, Germany
| | - T Lang
- Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Dresden, Germany,University of Bremen and Christoph-Dornier Foundation for Clinical Psychology, Bremen, Germany
| | - T Fydrich
- Department of Psychology, Humboldt University, Berlin, Germany
| | - G W Alpers
- Department of Psychology, Clinical and Biological Psychology, School of Social Sciences, Mannheim, Germany
| | - A Ströhle
- Department of Psychiatry and Psychotherapy, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - A Wittmann
- Department of Psychiatry and Psychotherapy, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - B Pfleiderer
- Department of Clinical Radiology, University of Münster, Münster, Germany
| | - H-U Wittchen
- Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - A Hamm
- Department of Biological and Clinical Psychology, University of Greifswald, Greifswald, Germany
| | - J Deckert
- Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany
| | - T Kircher
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
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Wittmann A, Schlagenhauf F, Guhn A, Lueken U, Gaehlsdorf C, Stoy M, Bermpohl F, Fydrich T, Pfleiderer B, Bruhn H, Gerlach AL, Kircher T, Straube B, Wittchen HU, Arolt V, Heinz A, Ströhle A. Anticipating agoraphobic situations: the neural correlates of panic disorder with agoraphobia. Psychol Med 2014; 44:2385-2396. [PMID: 24398049 DOI: 10.1017/s0033291713003085] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Panic disorder with agoraphobia is characterized by panic attacks and anxiety in situations where escape might be difficult. However, neuroimaging studies specifically focusing on agoraphobia are rare. Here we used functional magnetic resonance imaging (fMRI) with disorder-specific stimuli to investigate the neural substrates of agoraphobia. METHOD We compared the neural activations of 72 patients suffering from panic disorder with agoraphobia with 72 matched healthy control subjects in a 3-T fMRI study. To isolate agoraphobia-specific alterations we tested the effects of the anticipation and perception of an agoraphobia-specific stimulus set. During fMRI, 48 agoraphobia-specific and 48 neutral pictures were randomly presented with and without anticipatory stimulus indicating the content of the subsequent pictures (Westphal paradigm). RESULTS During the anticipation of agoraphobia-specific pictures, stronger activations were found in the bilateral ventral striatum and left insula in patients compared with controls. There were no group differences during the perception phase of agoraphobia-specific pictures. CONCLUSIONS This study revealed stronger region-specific activations in patients suffering from panic disorder with agoraphobia in anticipation of agoraphobia-specific stimuli. Patients seem to process these stimuli more intensively based on individual salience. Hyperactivation of the ventral striatum and insula when anticipating agoraphobia-specific situations might be a central neurofunctional correlate of agoraphobia. Knowledge about the neural correlates of anticipatory and perceptual processes regarding agoraphobic situations will help to optimize and evaluate treatments, such as exposure therapy, in patients with panic disorder and agoraphobia.
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Affiliation(s)
- A Wittmann
- Department of Psychiatry and Psychotherapy,Charité University Medicine Berlin,Germany
| | - F Schlagenhauf
- Department of Psychiatry and Psychotherapy,Charité University Medicine Berlin,Germany
| | - A Guhn
- Department of Psychiatry, Psychosomatics and Psychotherapy,University of Wuerzburg,Wuerzburg,Germany
| | - U Lueken
- Institute of Clinical Psychology and Psychotherapy,Technische Universität Dresden,Dresden,Germany
| | - C Gaehlsdorf
- Department of Psychiatry and Psychotherapy,Charité University Medicine Berlin,Germany
| | - M Stoy
- Department of Psychiatry and Psychotherapy,Charité University Medicine Berlin,Germany
| | - F Bermpohl
- Department of Psychiatry and Psychotherapy,Charité University Medicine Berlin,Germany
| | - T Fydrich
- Institute of Psychology,Psychotherapy and Somatopsychology - Humboldt Universität zu Berlin,Germany
| | - B Pfleiderer
- Department of Clinical Radiology,University of Münster,Münster,Germany
| | - H Bruhn
- Department of Radiology,University of Jena,Jena,Germany
| | - A L Gerlach
- Department of Psychology,University of Cologne,Cologne,Germany
| | - T Kircher
- Department of Psychiatry and Psychotherapy,Philipps-University Marburg,Marburg,Germany
| | - B Straube
- Department of Psychiatry and Psychotherapy,Philipps-University Marburg,Marburg,Germany
| | - H-U Wittchen
- Institute of Clinical Psychology and Psychotherapy,Technische Universität Dresden,Dresden,Germany
| | - V Arolt
- Department of Psychiatry,University of Münster,Münster,Germany
| | - A Heinz
- Department of Psychiatry and Psychotherapy,Charité University Medicine Berlin,Germany
| | - A Ströhle
- Department of Psychiatry and Psychotherapy,Charité University Medicine Berlin,Germany
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Lueken U, Straube B, Reinhardt I, Maslowski NI, Wittchen HU, Ströhle A, Wittmann A, Pfleiderer B, Konrad C, Ewert A, Uhlmann C, Arolt V, Jansen A, Kircher T. Altered top-down and bottom-up processing of fear conditioning in panic disorder with agoraphobia. Psychol Med 2014; 44:381-394. [PMID: 23611156 DOI: 10.1017/s0033291713000792] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Although several neurophysiological models have been proposed for panic disorder with agoraphobia (PD/AG), there is limited evidence from functional magnetic resonance imaging (fMRI) studies on key neural networks in PD/AG. Fear conditioning has been proposed to represent a central pathway for the development and maintenance of this disorder; however, its neural substrates remain elusive. The present study aimed to investigate the neural correlates of fear conditioning in PD/AG patients. METHOD The blood oxygen level-dependent (BOLD) response was measured using fMRI during a fear conditioning task. Indicators of differential conditioning, simple conditioning and safety signal processing were investigated in 60 PD/AG patients and 60 matched healthy controls. RESULTS Differential conditioning was associated with enhanced activation of the bilateral dorsal inferior frontal gyrus (IFG) whereas simple conditioning and safety signal processing were related to increased midbrain activation in PD/AG patients versus controls. Anxiety sensitivity was associated positively with the magnitude of midbrain activation. CONCLUSIONS The results suggest changes in top-down and bottom-up processes during fear conditioning in PD/AG that can be interpreted within a neural framework of defensive reactions mediating threat through distal (forebrain) versus proximal (midbrain) brain structures. Evidence is accumulating that this network plays a key role in the aetiopathogenesis of panic disorder.
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Affiliation(s)
- U Lueken
- Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Germany
| | - B Straube
- Department of Psychiatry and Psychotherapy, Philipps University Marburg, Germany
| | - I Reinhardt
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Germany
| | - N I Maslowski
- Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Germany
| | - H-U Wittchen
- Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Germany
| | - A Ströhle
- Department of Psychiatry and Psychotherapy, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Germany
| | - A Wittmann
- Department of Psychiatry and Psychotherapy, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Germany
| | - B Pfleiderer
- Department of Clinical Radiology, University of Münster, Germany
| | - C Konrad
- Department of Psychiatry and Psychotherapy, Philipps University Marburg, Germany
| | - A Ewert
- Department of Clinical Radiology, University of Münster, Germany
| | - C Uhlmann
- Department of Psychiatry and Psychotherapy, University of Münster, Germany
| | - V Arolt
- Department of Psychiatry and Psychotherapy, University of Münster, Germany
| | - A Jansen
- Department of Psychiatry and Psychotherapy, Philipps University Marburg, Germany
| | - T Kircher
- Department of Psychiatry and Psychotherapy, Philipps University Marburg, Germany
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Mainieri AG, Heim S, Straube B, Binkofski F, Kircher T. Differential role of the Mentalizing and the Mirror Neuron system in the imitation of communicative gestures. Neuroimage 2013; 81:294-305. [PMID: 23684882 DOI: 10.1016/j.neuroimage.2013.05.021] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 03/25/2013] [Accepted: 05/04/2013] [Indexed: 11/29/2022] Open
Abstract
Successful social interaction requires recognising the intention of another person's communicative gestures. At a neural level, this process may involve neural activity in different systems, such as the mentalizing system (MS) and the mirror neuron system (MNS). The aim of the present study was to explore the neural correlates of communicative gestures during observation and execution of these gestures. Twenty participants watched video clips of an actor executing social gestures (S), non-social gestures (NS) and meaningless gestures (ML). During fMRI data acquisition, participants were asked to observe (O) and subsequently to execute (E) one of two tasks: imitate the gesture presented (IMI) or perform a motor control task (CT). For the contrast IMI>CT we found activations in the core areas of the MNS [inferior parietal lobule (IPL) and inferior frontal cortex, the posterior part of pars opercularis], as well as in areas related to the MS [superior temporal sulcus (STS) and middle cingulate cortex]. For S>NS, we found activations in the left medial orbitofrontal cortex (mOFC), right superior frontal cortex and middle cingulate cortex. The interaction of stimulus condition (S vs NS) and task (IMI vs CT) revealed activation in the right IPL. For the interaction between observation vs execution (O vs E), task (IMI vs CT) and stimulus condition (S vs NS) we found activation in the right mOFC. Our data suggest that imitation is differentially processed in the MNS as well as in the MS. The activation in IPL is enhanced during the processing of social gestures most likely due to their communicative intention. The activation of IPL together with medial frontal areas may contribute to mentalizing processes. The interaction in the mOFC suggests an involvement of self-referential processes in the processing of social gesture.
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Affiliation(s)
- A G Mainieri
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical School, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany; JARA-Translational Brain Medicine, Germany.
| | - S Heim
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical School, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany; JARA-Translational Brain Medicine, Germany; Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Leo-Brandt-Straße 5, 52428 Jülich, Germany; Section Clinical and Cognitive Neurosciences, Department of Neurology, Medical School, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany.
| | - B Straube
- Department of Psychiatry und Psychotherapy, Philipps-University Marburg, Rudolf- Bultmann-Straße 8, 35039 Marburg, Germany.
| | - F Binkofski
- Section Clinical and Cognitive Neurosciences, Department of Neurology, Medical School, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany.
| | - T Kircher
- Department of Psychiatry und Psychotherapy, Philipps-University Marburg, Rudolf- Bultmann-Straße 8, 35039 Marburg, Germany.
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Mainieri A, Krach S, Green A, Straube B, Kircher T. Gesture Imitation and ToM: an fMRI Study. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)72180-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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14
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Straube B, Green A, Chatterjee A, Kircher T. True and false memories for social interactions: Neural correlates of differential encoding processes. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70497-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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15
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Mattern D, Straube B, Hagen H. [Effect of mode of delivery on early morbidity and mortality of premature infants (< or = 34th week of pregnancy)]. Z Geburtshilfe Neonatol 1998; 202:19-24. [PMID: 9577918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In a retrospective analysis (1985-1994) the influence of the mode of delivery on mortality and early morbidity of low birth weight infants (< or = 2500 gm and < or = 34 weeks of gestation) was assessed (n = 450). We only included cases that offered a choice between abdominal and vaginal delivery (cephalic and breech presentation, premature rupture of membranes and preterm labour). We found significantly higher survival rates in infants with birth weights of 1500 gm or less in case of breech and cephalic presentation after cesarean births. In infants with cephalic presentation and birth weights of 1500 gm or less no parameter of early morbidity was changed by the mode of delivery. Infants with breech presentation and birth weights of 1500 gm or less have less severe cerebral hemorrhages, cord pH values < or = 7.15 and have a lower incidence of primary intubation after abdominal delivery. Infants with birth weights of 1501-2500 gm and cephalic presentation are better off after a vaginal delivery, because there is the same survival rate and some parameters of early morbidity (1' and 5' Apgar score, incidence of primary intubation) are better after spontaneous births. In breech infants with birth weights of 1501-2500 gm there are no differences in mortality and early morbidity after vaginal and abdominal birth. A logistic regression analysis showed, that the risk of dying was significantly higher in infants with cerebral hemorrhages (I degree-IV degrees) and in infants born before 1990. In infants with birth weights of 1500 gm or less the mortality rate was higher after vaginal delivery and in case of an 10' Apgar score <8. Regarding infants with birth weights of 1501-2500 gm the risk of dying was higher in infants that suffered from a respiratory distress syndrome I degree-IV degrees and in case of birth weights of 2000 gm or less.
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Affiliation(s)
- D Mattern
- Frauenklinik am Klinikum Ernst von Bergmann Potsdam
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Mattern D, Straube B, Kunze M, Büttner H. Die Uterusruptur: Eine seltene, jedoch schwere Komplikation der Konisation*. Geburtshilfe Frauenheilkd 1997. [DOI: 10.1055/s-2007-1023109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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17
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Kuhn FP, Schäfer W, Truss J, Reuter P, Skutta B, Emmerich D, Grieser EM, Gante-Bongartz U, Bernhardt E, Straube B. [Cost control without quality loss? Public Health Structure Law--requirements and consequences for radiology exemplified by a general hospital]. Aktuelle Radiol 1997; 7:115-21. [PMID: 9172664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- F P Kuhn
- Institut für Diagnostische und Interventionelle Radiologie, Städtischen Kliniken Kassel gGmbH
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Bry W, Warvariv V, Bohannon L, Feduska N, Straube B, Collins G, Levin B. Cadaveric renal transplant without prophylactic prednisone therapy. Transplant Proc 1991; 23:994-6. [PMID: 1989357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- W Bry
- Pacific Presbyterian Medical Center, San Francisco, California
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Unger K, Schick-Kalb J, Straube B. Poröses Siliciumdioxid mit variierbarer und reproduzierbarer Hohlraumstruktur aus Polyäthoxysiloxan. Colloid Polym Sci 1975. [DOI: 10.1007/bf01462010] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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