Results 271 to 280 of about 50,736 (309)
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The place of the hippocampus in fear conditioning
European Journal of Pharmacology, 2003Pavlovian fear conditioning is a phenomenon amenable to laboratory analysis of the neurobiology of fear and the investigation of neural mechanisms of learning and memory. Investigators have made much progress in delineating the neurocircuitry and neurochemistry of fear conditioning.
Matthew J, Sanders +2 more
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Scopolamine, atropine and conditioned fear
Psychopharmacologia, 1967Two experiments, designed to determine the effects of anticholinergics on fear-conditioning, are reported. The results indicate that scopolamine and atropine were not effective in reducing the conditioning of fear. These experiments indicate that previous findings suggestive of attenuated habituation with the antichiolnergics, cannot reasonable be ...
J R, Vogel, R A, Hughes, P L, Carlton
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Brief fear preexposure facilitates subsequent fear conditioning
Neuroscience Research, 2015Post-traumatic stress disorder (PTSD) is an anxiety disorder that occurs following an unexpected exposure to a severe psychological event. A history of a brief trauma is reported to affect a risk for future PTSD development; however, little is known about the mechanisms by which a previous trauma exposure drives the sensitivity to a late-coming trauma.
Satoshi, Iwasaki +2 more
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Facilitation of fear learning by prior and subsequent fear conditioning
Behavioural Brain Research, 2018Classical fear conditioning is perhaps the premier model system used to study the neurobiological basis of memory formation. Prior work has resulted in a good understanding of both the molecular mechanisms and neural circuits supporting this form of learning.
Jessica, Lee +2 more
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2002
Abstract ‘Show me a man who is not a slave; one is a slave to lust, another to greed, another to ambition, and all men are slaves to fear’ (Seneca 63–65). Fear drives fundamental responses to the world in individuals and societies alike (Durkheim 1895; Freud 1908).
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Abstract ‘Show me a man who is not a slave; one is a slave to lust, another to greed, another to ambition, and all men are slaves to fear’ (Seneca 63–65). Fear drives fundamental responses to the world in individuals and societies alike (Durkheim 1895; Freud 1908).
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Effects of dorsal striatum lesions in tone fear conditioning and contextual fear conditioning
Brain Research, 2003It has been suggested that the striatum mediates hippocampus-independent memory tasks. Classical fear conditioning to a discrete stimulus such as a tone is not affected by hippocampal lesion, whereas contextual fear conditioning is an hippocampus dependent task.
Tatiana L, Ferreira +4 more
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Hippocampus, 1999
The hippocampus is believed to be an important structure for learning tasks that require temporal processing of information. The trace classical conditioning paradigm requires temporal processing because the conditioned stimulus (CS) and the unconditioned stimulus (US) are temporally separated by an empty trace interval.
M D, McEchron +4 more
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The hippocampus is believed to be an important structure for learning tasks that require temporal processing of information. The trace classical conditioning paradigm requires temporal processing because the conditioned stimulus (CS) and the unconditioned stimulus (US) are temporally separated by an empty trace interval.
M D, McEchron +4 more
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[Visual Fear Conditioning in Mice: Comparison with Auditory Fear Conditioning].
Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova, 2019Up to date, rodent fear conditioning is the most commonly used model of mammalian associative memory in neurobiology. Since the mechanisms of associative memory in this model are mainly studied using audi tory fear conditioning, the question about the generality of this mechanisms in respect to other conditioned stimuli remains open.
O I, Ivashkina +3 more
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