Aversive Control
Mostrando 1-12 de 41 artigos, teses e dissertações.
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1. Cultural Meanings and Consumers' Discourses about Their Brand Abandonment
Abstract Although we know a lot about how brand meanings are created and perpetuated in relation to and through cultural discourses, remarkably little work has been done in the marketing field to develop a better comprehension as to how brand meanings are enacted through distancing behaviors, such as brand abandonment. In the marketing literature, abandonmen
BAR, Braz. Adm. Rev.. Publicado em: 29/03/2018
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2. Environmental enrichment restores cognitive deficits induced by experimental childhood meningitis
Objective: To evaluate the influence of environmental enrichment (EE) on memory, cytokines, and brain-derived neurotrophic factor (BDNF) in the brain of adult rats subjected to experimental pneumococcal meningitis during infancy. Methods: On postnatal day 11, the animals received either artificial cerebrospinal fluid (CSF) or Streptococcus pneumoniae suspen
Rev. Bras. Psiquiatr.. Publicado em: 25/07/2014
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3. Desamparo aprendido e imunização em humanos: avaliação metodológica/conceitual e uma proposta experimental / Learned helplessness and immunization in humans: methodological/conceptual evaluation and an experimental proposal
The results of learned helplessness studies with humans have been inconsistent. This is probably due to the systematic contiguity between the end of the aversive stimulus and the immediately preceding response during the uncontrollability session, which mimics an accidental control condition. Three experiments were conducted to establish a procedure with ade
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/09/2012
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4. Um estudo sobre a interação dos sistemas colinérgico nicotínico e dopaminérgico na persistência de memórias aversivas
Long-term memory (LTM) storage requires activation of the ventral tegmental area (VTA)- hippocampus dopaminergic loop and synthesis of brain-derived neurotrophic factor (BDNF) late after learning (Bekinschtein et al., 2007; Rossato et al., 2009). Nicotinic acetylcholine receptors (nAChR) modulate VTA function. Therefore, we analyzed the involvement of these
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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5. Subchronic effects of fluoxetine on conditioned suppression produced by a hot air blast
Conditioned suppression is an animal model of anxiety disorders that has been broadly used to investigate the behavioral effects of different drugs. However, various methodological variables (e.g., the type of aversive stimulus) that supposedly interfere with the acquisition of conditioned suppression may also contribute to conflicting results among the stud
Psychol. Neurosci.. Publicado em: 2012-06
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6. Discriminated conditioned suppression in rats
This experiment evaluated the effects of superimposing the Estes-Skinner Conditioned Emotional Response (CER) procedure on one of two components of a multiple schedule. The question was whether CER conditioning occurred under contextual control. The procedure had four experimental phases: (1) baseline of operant responding under a two-component multiple sche
Psychol. Neurosci.. Publicado em: 2012-06
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7. Fine-tuning of defensive behaviors in the dorsal periaqueductal gray by atypical neurotransmitters
This paper presents an up-to-date review of the evidence indicating that atypical neurotransmitters such as nitric oxide (NO) and endocannabinoids (eCBs) play an important role in the regulation of aversive responses in the periaqueductal gray (PAG). Among the results supporting this role, several studies have shown that inhibitors of neuronal NO synthase or
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-04
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8. Efeitos da administração de ácido fólico sobre parâmetros comportamentais, bioquímicos e morfológicos em ratos submetidos à hipóxia-isquemia encefálica neonatal
Perinatal hypoxic-ischemic (HI) is a significant cause of mortality and morbidity in infants and young children. Folic acid is a water soluble vitamin that can be obtained through diet and has been related to the antioxidant effect, protecting ischemic events and Alzheimer s disease. The aim of this study was to investigate the role of the folic acid treatme
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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9. Central chemoreceptors and neural mechanisms of cardiorespiratory control
The arterial partial pressure (P CO2) of carbon dioxide is virtually constant because of the close match between the metabolic production of this gas and its excretion via breathing. Blood gas homeostasis does not rely solely on changes in lung ventilation, but also to a considerable extent on circulatory adjustments that regulate the transport of CO2 from i
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-09
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10. The terrestrial Gastropoda megalobulimus abbreviatus as a useful model for nociceptive experiments : effects of morphine and naloxone on thermal avoidance behavior
We describe the behavior of the snail Megalobulimus abbreviatus upon receiving thermal stimuli and the effects of pretreatment with morphine and naloxone on behavior after a thermal stimulus, in order to establish a useful model for nociceptive experiments. Snails submitted to non-functional (22ºC) and non-thermal hot-plate stress (30ºC) only displayed exp
Publicado em: 2010
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11. Intermittent ethanol binge exposure impairs object recognition but spares contextual and tone fear memory in adolescent rats
Adolescent brain development seems to be important for the maturation of brain structures and behavior. Intermittent binge ethanol drinking is common among adolescents, and this type of drinking can induce brain damage and cognitive deficits. In addition, emotional changes are frequently seen in alcoholics and rodents treated with ethanol. Considering the cl
Psychology & Neuroscience. Publicado em: 2009-06
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12. Previous spatial learning is required for the development of place preference in rats following chronic administration of and withdrawal from morphine
The positive reinforcing properties of addictive drugs have a primary role in the development of drug dependence. In the field of opiates, great attention has been given to this phenomenon, as well as to the negative properties eliciting craving and inducing relapse during withdrawal. This study was designed to evaluate whether elevated plus-maze (EPM) exper
Psychology & Neuroscience. Publicado em: 2009-06