Panic Attack
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Critical neuropsychobiological analysis of panic attack- and anticipatory anxiety-like behaviors in rodents confronted with snakes in polygonal arenas and complex labyrinths: a comparison to the elevated plus- and T-maze behavioral tests
Objective: To compare prey and snake paradigms performed in complex environments to the elevated plus-maze (EPM) and T-maze (ETM) tests for the study of panic attack- and anticipatory anxiety-like behaviors in rodents. Methods: PubMed was reviewed in search of articles focusing on the plus maze test, EPM, and ETM, as well as on defensive behaviors displaye
Rev. Bras. Psiquiatr.. Publicado em: 06/02/2017
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2. DPAG ELETRICAL STIMULATION EFFECT IN DEFENSE BEHAVIORS: IN THE ROSTRAL ANTERIOR CINGULATED CORTEX PARTICIPATION AND IN CARIOCA HIGH-FREEZING AND LOW-FREEZING BREEDING LINES / EFEITO DA ESTIMULAÇÃO ELÉTRICA DA MCPD EM COMPORTAMENTOS DE DEFESA: PARTICIPAÇÃO DO CÓRTEX CINGULADO ANTERIOR ROSTRAL E NAS LINHAGENS CARIOCA ALTO E BAIXO CONGELAMENTO
A matéria cinzenta periaquedutal dorsal (MCPD) é associada com comportamento defensivo e ataques de pânico em humanos. Estimulações elétricas da MCPD induzem a um repertório de defesa: o congelamento pré fuga, reação de fuga e congelamento pós fuga. Evidências já apresentadas suportam a hipótese que enquanto o congelamento pré fuga seria um mo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/04/2012
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3. ROLE OF DORSAL AND VENTRAL HIPPOCAMPUS ON CONDITIONED AND UNCONDITIONED FEAR ELICITED BY DORSAL PERIAQUEDUCTAL GREY MATTER ELECTRICAL STIMULATION IN RATS / PARTICIPAÇÃO DO HIPOCAMPO DORSAL E VENTRAL NAS REAÇÕES DE DEFESA PRODUZIDAS PELO CONDICIONAMENTO CONTEXTUAL DE MEDO E PELA ESTIMULAÇÃO ELÉTRICA DA MATÉRIA CINZENTA PERIAQUEDUTAL DORSAL
This study investigates the role of the hippocampus in both unconditioned and conditioned defense behavior by examining the effects of pre-training electrolytic lesions to the dorsal and ventral hippocampus in male rats exposed to two types of threat stimuli: electrical stimulation of the DPAG and footshock. Our results indicate that ventral and dorsal lesio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2012
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4. New perspective on the pathophysiology of panic: merging serotonin and opioids in the periaqueductal gray
Panic disorder patients are vulnerable to recurrent panic attacks. Two neurochemical hypotheses have been proposed to explain this susceptibility. The first assumes that panic patients have deficient serotonergic inhibition of neurons localized in the dorsal periaqueductal gray matter of the midbrain that organize defensive reactions to cope with proximal th
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-04
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5. Panic-like defensive behavior but not fear-induced antinociception is differently organized by dorsomedial and posterior hypothalamic nuclei of Rattus norvegicus (Rodentia, Muridae)
The hypothalamus is a forebrain structure critically involved in the organization of defensive responses to aversive stimuli. Gamma-aminobutyric acid (GABA)ergic dysfunction in dorsomedial and posterior hypothalamic nuclei is implicated in the origin of panic-like defensive behavior, as well as in pain modulation. The present study was conducted to test the
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-04
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6. Panic-like behaviors in Carioca High-and Low-conditioned Freezing rats
Panic disorder involves both recurrent unexpected panic attacks and persistent concern about having additional attacks. Electrical stimulation of the dorsal periaqueductal gray (dPAG) is an animal model of both panic attack and panic disorder, whereas contextual fear conditioning represents a model of anticipatory anxiety. Previous research indicated that an
Psychology & Neuroscience. Publicado em: 2011
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7. Towards a translational model of panic attack
About 20 years ago, Deakin and Graeff proposed that whereas generalized anxiety disorder is produced by the overactivity of 5-HT excitatory projections from dorsal raphe nucleus to the areas of prefrontal cortex and amygdala which process distal threat, panic attacks are a dysfunction of 5-HT inhibitory projections from dorsal raphe nucleus to the dorsal per
Psychology & Neuroscience. Publicado em: 2010-06
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8. The hypothalamic-pituitary-adrenal axis in anxiety and panic
This review article focuses on the differential activation of the hypothalamic-pituitary-adrenal (HPA) axis in generalized anxiety and panic. The results of experimental studies that assayed adrenocorticotropic hormone, cortisol and prolactin show that real-life panic attacks as well as those induced by selective panicogenic agents, such as lactate and carbo
Psychology & Neuroscience. Publicado em: 2010-06
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9. AVALIAÇÃO COMPORTAMENTAL E FARMACOLÓGICA DA RELAÇÃO ENTRE ANSIEDADE E PÂNICO EM MODELOS ANIMAIS / BEHAVIORAL AND PHARMACOLOGICAL EVALUATION BETWEEN ANXIETY AND PANIC IN ANIMALS MODELS
The dorsal portion of the periaqueductal gray (DPAG) is notably associated with defensive behavior and panic attacks in humans. Electrical or pharmacological stimulation of the DPAG induces aversive reactions such as running and jumping in rats. Our results indicate that animals exposed to contextual cues, that were previously associated with electrical foot
Publicado em: 2007
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10. Does the panic attack activate the hypothalamic-pituitary-adrenal axis?
Realizou-se levantamento bibliográfico no indexadorMEDLINE, através das palavras-chave "cortisol" e "panic", sem limite de tempo, restringindo-se a sereshumanos e à localização das palavras-chave no título e no resumo. Foram excluídos artigos de revisão e relatos de caso, estudos sobre alterações ocorridas entre dois ataques, e os que tratavam de o
Anais da Academia Brasileira de Ciências. Publicado em: 2005-09
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11. Clinical features of panic patients sensitive to hyperventilation or breath-holding methods for inducing panic attacks
Our aim was to compare the clinical features of panic disorder (PD) patients sensitive to hyperventilation or breath-holding methods of inducing panic attacks. Eighty-five PD patients were submitted to both a hyperventilation challenge test and a breath-holding test. They were asked to hyperventilate (30 breaths/min) for 4 min and a week later to hold their
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-02
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12. Transtorno de panico em dependentes de substancias psicoativas alcoolicas e não alcoolicas
Background: The aim of this research is to collect data about the prevalence of Panic Disorder (PD) in subjects with dependence on alcohol and non-alcohol substances. Methods: This is an intentional sample, composed at random regarding to the kind of drug dependence (drug addiction) origin, race, marital status, educational level and occupational status or p
Publicado em: 2004