Results 11 to 20 of about 41,850 (262)

Multiple factors contribute to flight behaviors during fear conditioning

Scientific Reports, 2023
Shifting defensive mode from one to another by the imminence of threat is crucial for survival. The transition of defensive mode from freezing to flight is observed during the modified fear conditioning, however, the flight during fear conditioning is ...
Takafumi Furuyama, Ayana Imayoshi, Toyo Iyobe, Munenori Ono, Tatsuya Ishikawa, Noriyuki Ozaki, Nobuo Kato, Ryo Yamamoto   +7 more
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Reversible plasticity of fear memory-encoding amygdala synaptic circuits even after fear memory consolidation. [PDF]

PLoS ONE, 2011
It is generally believed that after memory consolidation, memory-encoding synaptic circuits are persistently modified and become less plastic. This, however, may hinder the remaining capacity of information storage in a given neural circuit.
Ingie Hong, Jihye Kim, Junuk Lee, Sungmo Park, Beomjong Song, Jeongyeon Kim, Bobae An, Kyungjoon Park, Hyun Woo Lee, Seungbok Lee, Hyun Kim, Sang-Hyun Park, Khee Dong Eom, Sukwon Lee, Sukwoo Choi   +14 more
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Prior observation of fear learning enhances subsequent self-experienced fear learning with an overlapping neuronal ensemble in the dorsal hippocampus

Molecular Brain, 2019
Information from direct experience and observation of others is integrated in the brain to enable appropriate responses to environmental stimuli. Fear memory can be acquired by observing a conspecific’s distress.
Hiroshi Nomura, Chie Teshirogi, Daisuke Nakayama, Masabumi Minami, Yuji Ikegaya   +4 more
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Enhanced Instructed Fear Learning in Delusion-Proneness

Frontiers in Psychology, 2022
Psychosis is associated with distorted perceptions and deficient bottom-up learning such as classical fear conditioning. This has been interpreted as reflecting imprecise priors in low-level predictive coding systems. Paradoxically, overly strong beliefs,
Anaïs Louzolo, Rita Almeida, Marc Guitart-Masip, Malin Björnsdotter, Alexander Lebedev, Martin Ingvar, Andreas Olsson, Predrag Petrovic   +7 more
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Fear memory formation can affect a different memory: fear conditioning affects the extinction, but not retrieval, of conditioned taste aversion (CTA) memory

Frontiers in Behavioral Neuroscience, 2014
The formation of fear memory to a specific stimulus leads to subsequent fearful response to that stimulus. However, it is not known whether the formation of fear memory can affect other memories.
Gil eJoels, Raphael eLamprecht
doaj   +1 more source

Contextual Fear Conditioning Alter Microglia Number and Morphology in the Rat Dorsal Hippocampus

Frontiers in Cellular Neuroscience, 2019
Contextual fear conditioning is a Pavlovian conditioning paradigm capable of rapidly creating fear memories to contexts, such as rooms or chambers.
Nicholas Chaaya, Nicholas Chaaya, Angela Jacques, Angela Jacques, Arnauld Belmer, Arnauld Belmer, Kate Beecher, Kate Beecher, Syed A. Ali, Syed A. Ali, Fatemeh Chehrehasa, Fatemeh Chehrehasa, Andrew R. Battle, Andrew R. Battle, Andrew R. Battle, Luke R. Johnson, Luke R. Johnson, Luke R. Johnson, Selena E. Bartlett, Selena E. Bartlett   +19 more
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Generalization gradients for fear and disgust in human associative learning

Scientific Reports, 2021
Previous research indicates that excessive fear is a critical feature in anxiety disorders; however, recent studies suggest that disgust may also contribute to the etiology and maintenance of some anxiety disorders.
Jinxia Wang, Xiaoying Sun, Jiachen Lu, HaoRan Dou, Yi Lei   +4 more
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Functional imaging of stimulus convergence in amygdalar neurons during Pavlovian fear conditioning. [PDF]

PLoS ONE, 2009
BACKGROUND:Associative conditioning is a ubiquitous form of learning throughout the animal kingdom and fear conditioning is one of the most widely researched models for studying its neurobiological basis.
Sabiha K Barot, Ain Chung, Jeansok J Kim, Ilene L Bernstein   +3 more
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Beta-adrenergic receptors in the lateral nucleus of the amygdala contribute to the acquisition but not the consolidation of auditory fear conditioning

Frontiers in Behavioral Neuroscience, 2010
Beta-adrenergic receptors (βARs) have long been associated with fear disorders and with learning and memory. However, the contribution of these receptors to Pavlovian fear conditioning, a leading behavioral model for studying fear learning and ...
David E A Bush, Ellen M Caparosa, Anna Gekker, Joseph LeDoux, Joseph LeDoux   +4 more
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Enduring neurobehavioral effects of early life trauma mediated through learning and corticosterone suppression

Frontiers in Behavioral Neuroscience, 2009
Early life trauma alters later life emotions, including fear. To better understand mediating mechanisms, we subjected pups to either predictable or unpredictable trauma, in the form of paired or unpaired odor-0.5mA shock conditioning which, during a ...
Stephanie Moriceau, Stephanie Moriceau, Stephanie Moriceau, Charlis Raineki, Charlis Raineki, Charlis Raineki, Jennifer D Holman, Jason G Holman, Regina M Sullivan, Regina M Sullivan, Regina M Sullivan, Regina M Sullivan   +11 more
doaj   +1 more source